Rockets that land vertically and mechanical automatons that explore planets... who would have expected that science fiction from the 1920s was the way forward?
@Imbeachedwhale4 жыл бұрын
Disruptive_Innovator The designers of the mechanical computers used to direct naval guns or torpedoes in the 30s and 40s, firing on moving targets over 32 km away, would have excelled at this challenge.
@tubularap4 жыл бұрын
@Disruptive_Innovator - Good observation.
@andrasbiro30074 жыл бұрын
That's just the Y2K bug. Off by a century.
@RFC35144 жыл бұрын
@I'm beachedwhale1945 - Those were basically mechanical calculators, not computers. They got all the data fed to them by a human (not sensors), didn't have to run any complex decision-making code, and didn't even have memory. A better comparison (though still much simpler than a rover on a different planet) would be with something like the Norden bombsight, which used data directly from sensors and was very impressive on paper... but pretty disastrous in actual use, which led to the revival of the pigeon-guided bomb program (not kidding).
@cokeforever4 жыл бұрын
everyone with sharp mind and at least basic knowledge of history?
@hydrochloricacid21464 жыл бұрын
This mechanical rover idea is so delightfully archaic, I love it.
@karolakkolo1234 жыл бұрын
Mechanical things have their charm
@JUK3MASTER4 жыл бұрын
Thank you for your input hydrochloric acid
@karenrobertsdottir41014 жыл бұрын
@@JUK3MASTER Hydrochloric acid (okay, mostly anhydrous hydrogen chloride) being a meaningful atmospheric constituent in the cloud layers ;) Seriously, though, Scott overplays the case against conventional electronics. For example, he says that if you crunch the numbers, wind and solar don't work. Except that there are peer-reviewed research papers that show that yes, they actually do. Solar is the really surprising one - and yes, you have to be very careful in your choice of what type of solar cells you use, and your power-to-mass ratio is pretty terrible, but it surprisingly does work. And with sufficient insulation, you can operate heat pumps (also well researched) to keep electronics cool. And you can use higher-temperature silicon carbide electronics. The odds of mechanical computers actually being used is exceedingly low.
@ValleysOfRain4 жыл бұрын
Karen Pease Actually I think you are underestimating it. Illumination on Venus's surface is not much more than 100 watt/m². The best solar panels we have can achieve around 20% efficiency, but those are unsuitable for these temperatures, so likely you're probably looking at around 10%, so best case scenario, you have 10-30 watts being produced per square metre. BUT then you have line losses due to temperature, copper has 2.7 times the resistance at 450 than room temps, and you can't use better conductors like gold because they will melt. Then you have the processors themselves, who need to have signal to noise ratio high enough that they can work - but at 400°C, they need to be pumping godawful amounts of power through their circuits to distinguish signals through the noisy circuitry. And as Scott pointed out - the silicon carbide electronics are not there yet for these kinds of applications. Maybe, eventually, but not yet. and then you add your heat pumps into the equation - what will you use as a working fluid? how will you protect your radiators from corrosion? Ultimately you end up with a very heavy, very bulky system that somehow needs to safely land on Venus and function for a long enough duration to make this worthwhile. I don't doubt that eventually we will find a way to make this work, but I also reckon that if there was an easier way to do this, NASA wouldn't be offering a cash prize for someone to develop an analogue alternative.
@karenrobertsdottir41014 жыл бұрын
@@ValleysOfRain You don't have to speculate on this; there are papers on this. I've read them. Solar, for example, Landis has at least one. Yes, the power to weight ratio is awful. But - and this is part that matters - even the worst electronic computers have orders of magnitude better compute-power-to -weight ratios vs. mechanical ones. Plus, lets not kid ourselves, tribocorrosion would be god-awful for a mechanical computer on Venus's surface.
Seriously. It's an insult.. [edit] I mean, even a fucking scholarship would be nice. But fuck. That doesn't even get you a semester anywhere good.
@ChrisPage684 жыл бұрын
@@nathantron Adding to the sum of human knowledge?
@TimLF4 жыл бұрын
Use commas not periods otherwise you will crash a spaceship like the metric versus Freedom Units catastrophe.
@reformCopyright4 жыл бұрын
@@TimLF Or use hard spaces.
@jaalcaid4 жыл бұрын
@@TimLF commas are for decimals
@timmcdaniel61934 жыл бұрын
Missed a great chance to say, "I'm Scott Manley. Fry safe."
@Hongobogologomo4 жыл бұрын
technically you would be broiled.
@zoolkhan4 жыл бұрын
"fly safe" is a greeting formula coming from eve-online in his case.
@timmcdaniel61934 жыл бұрын
@@zoolkhan I didn't know the source, but I know it's his standard ending. I'm just saying that he missed a good chance at a pun.
@rolandlemmers64624 жыл бұрын
U chinese?
@GaryNumeroUno4 жыл бұрын
@@timmcdaniel6193 Hehehe... I understood you buddy! It is indeed sad when some cannot get a simple pun. When you need to explain it then the mission is doomed! Abort. Fly safe; from Oz.
@PieterPatrick4 жыл бұрын
Let it tumble around in a inflatable shell like Tumbleweed. It might give almost random movement, but it is very low tech and effective.
@alejandromedina45974 жыл бұрын
I tought the same but a ball with some inercial wheel inside for making it roll.
@richarddoyle6894 жыл бұрын
Great idea, keep.it simple. Distribute by dropping several as lander descends and let the wind carry them about.
@cplpetergriffin15834 жыл бұрын
Until it falls into some crevice
@PieterPatrick4 жыл бұрын
@@cplpetergriffin1583 You can always use a inflatable balloon to fly, it wil be useable for several times. (But I think you'll need a bit of compressed light gas from earth.)
@PistonAvatarGuy4 жыл бұрын
How do you do science with something like that?
@MushookieMan4 жыл бұрын
"A mechanical computer works in any environment" *Dust would like to know your location*
@richmcgee4344 жыл бұрын
That was one thing I immediately thought of, along with corrosion damage and temperature extremes warping components. "Sand in the gears" is a saying for a reason.
@EternalEmpr3ss4 жыл бұрын
I dont think venus is as sandy as mars
@vickas544 жыл бұрын
@@EternalEmpr3ss That is a poor assumption. I'm fairly certain the designers will be sealing up the mechanisms away from environmental dust or sand as much as they can, because the local surface environment is not well known. It's part of the reason we want to send a rover, because we want to find out more about Venus' surface.
@kamalnathkanthimathinathan14734 жыл бұрын
😂🤣😅
@somedude59514 жыл бұрын
Dust can't enter a closed box.
@c_o_n_t_e_n_t34204 жыл бұрын
the thing i love about this, is it really shows how narrow the scope of human technology is. we may very impressed with what we can do at 50c and 10bar, and as soon as the environment changes its either completely useless or we try to insulate it from the environment so it isnt. I wonder how the technological path of discovery in the past 500 years would have progressed differently in an environment this foreign. What would we know that we now dont, what do we know now that we wouldnt on the surface of venus.
@TheErmerm9994 жыл бұрын
The same question arises of evolution how different might we be
@TheReaverOfDarkness4 жыл бұрын
I've always wondered why people don't consider it to be more obvious that many of the solutions lie in discovering techniques that work fine in that environment, rather than finding ways to shield Earth stuff from it. We have this stereotype that it's a Hostile environment, yet our environment is hostile to most equipment that works fine on Venus.
@tangerinetech53004 жыл бұрын
so we just happen to be so lucky as to live in just the right environment for electronics to work or maybe if we existed in that other environment we would make stuff that worked there
@c_o_n_t_e_n_t34204 жыл бұрын
@@TheReaverOfDarkness The rationale for it isnt bad though. we get more from applying moore's law for the last 70 years to silicon technology, than we would have focusing on technology that would work on venus, but if it wernt true, for sure life would be different. I dunno, its kinda woo-woo stuff, but i love the idea that alien tech doesnt have to be better for it to look like magic, it only has to be developed from a different environment. This video kinda put the point on that for me.
@Voyager25254 жыл бұрын
We design for the environment that the equipment will face. On earth, there is no need to design for 455 C or 90 atmospheres. If there was, we would design it as such.
@gronank4 жыл бұрын
I'm thinking airship with dipping probe, if we're going for steam punk appeal: Float to high altitude convert atmosphere to liquid that you use as coolant at lower altitudes, descend and the last few kilometers you have a cable down to the ground. Don't pay any attention to mission complexity or weight requirements or even basic feasibility for such a scheme.
@janniszimbalski66524 жыл бұрын
It also needs to be steam powered.
@rhamph4 жыл бұрын
My version would be a porpoising airship. Rise up for greater solar panel and lower temperature, then dip down briefly to poke at the ground. Short dips into high temperature are much easier to handle than doing so for a month.
@theodorewinston76254 жыл бұрын
To reach an earthlike temperature the cable would need to be 50km long, and would be descending through an atmosphere 93 times denser than Earth's. (Guesstimating from this that an airship would need to be at least 10-20 km in altitude) That said, this seems a touch more useful for data collection than anything clockwork would likely be. I'd still be concerned about maintaining a stable flight with the ridiculous wind speeds though
@pegzounet4 жыл бұрын
And you get to brag that you dipped your probe in venus' lower parts, which is always a bonus
@AlohaMilton4 жыл бұрын
I think the airship is a better path for data collection as well. I think a mission profile something like an anti submarine airplane is an easier place to start, using short lifespan sensors like the sonar buoys airplanes drop looking for submarines. Those can work for a few hours and use radio to transmit data to the airship, that then sends it on to a satellite for broadcasting to earth. this way we get the data without reinventing the wheel. Material science is going to solve the heat issue. Exothermic bacteria as producers of power and logic functions or something. At that point the mechanical system is again antiquated. Its a project to avoid the project that needs to be worked on, due to the amount of data and varied sensors we actually want a mechanical computer is not going to work. Just making it not seize up and stop working with all the intricate moving parts is worse than putting the effort into heat resistant digital systems.
@JoeBissell4 жыл бұрын
I don't know Scott, the amount of time and thought put into some of those designs are perceivably lack luster compared to some of the geniuses in your comment section.
@jackvernian77794 жыл бұрын
Throwing the idea out is one thing, building a proof-of-concept is another.
@Grandremone4 жыл бұрын
@@jackvernian7779 but being a genious in the comment section is nothing compared to even building it
@danieljensen26264 жыл бұрын
You've probably heard the phrase "easier said than done", well the competition designs have to be done.
@CarlosAM14 жыл бұрын
I posted my idea in the comments not because I think it would work better than NASA, but because I want to know what probably makes it impossible, its always nice to learn stuff.
@SofaKingShit4 жыл бұрын
If l had enough funding to develop such a functioning prototype I'm fairly certain that I'd manage eventually to spend it down the pub and then have to avoid NASA all the time.
@LongPeter4 жыл бұрын
20 transistors and a spring? Give those to Steve Wozniak. He’ll build you an arcade game and a VGA adaptor, then ask what you want done with the 5 spare transistors.
@DeviantDeveloper4 жыл бұрын
Venus Tourist Board: "Venus: It's a Helluva Place"
@thekaiser43334 жыл бұрын
Venus is simply the end result of climate change. It is much, much closer to earth than Mars.
@1000dots4 жыл бұрын
Venus is so hot right now
@davisdf30644 жыл бұрын
Venus is so hot, that if you go in there, you will see demons laughing at an girl talking about redemption
@shawnpitman8764 жыл бұрын
@@davisdf3064 I'll tell you this much my man, if you go to Venus, it's going to have a HUGE crush on you ;)
@davisdf30644 жыл бұрын
@@shawnpitman876 I'm so flattened by hearing this... Unlike Earth tho...
@anarchyantz15644 жыл бұрын
The steampunk community collectively rolls up their sleeves and puts their goggles on.
@marrqi7wini544 жыл бұрын
No steam on Venus, too hot. Tell them to put their sleeves back down and take their goggles off. The clockpunk varient community however...
@eribruger62574 жыл бұрын
A whole world where only steampunk clockwork machines work outside. And everyone's hot. Change "Venus" to Arcadia and call the floating city Laputa!
@daylenhigman86804 жыл бұрын
A very cultured comment section
@eekee60343 жыл бұрын
About 12 years ago, I was a regular on a steampunk forum where another regular was planning a clockwork motorbike. Clockpunk hadn't entirely become its own thing at that point. Unfortunately, the guy planning the bike had massive emotional problems, got into furious rages over nothing at all, and had to be banned, so I don't really know how it went. I did websearch years later, but I don't remember finding a success story.
@thomas3162 жыл бұрын
Surely the valve (vacuum tube) people will win this one? The technogy exists and is well proven.
@allanrichardson14684 жыл бұрын
The idea of using radar reflective “semaphore” actuators reminds me of the hidden Soviet listening device in the US Embassy. The bug sweeps turned up nothing because the bug, hidden inside the Great Seal of the United States on the wall, a “house warming gift” from the Soviets, was nothing but a piece of sheet metal that vibrated with the sounds in the Ambassador’s office. When the Soviets wanted to listen, they aimed a radar beam at this diaphragm and picked up the Doppler shifts on the echoes. It was designed by Leo Theremin, inventor of the eponymous touch-free musical instrument, after he redefected back to Russia and was forced to become Stalin’s inventor in chief.
@BlackEpyon4 жыл бұрын
A layer of tin foil in the insulation of the walls, and metal blinds on the windows, ought to stop that. As I recall, they actually DID install such shielding.
@allanrichardson14684 жыл бұрын
BlackEpyon Yes, both sides have gone on to much more sophisticated ways to eavesdrop on each other. Putin even installed a listening device in the White House: the President!
@BlackEpyon4 жыл бұрын
@@allanrichardson1468 In a free country, the one thing you can't protect people against is their own stupidity.
@Blox1174 жыл бұрын
"Look at how smart I am by injecting politics into this xD"
@mherlihy08164 жыл бұрын
Why isn't this story a movie?
@TheSockMonkeyGuy4 жыл бұрын
Thinking back to my childhood (I'm 62), I remember the "bump 'n' go" mechanical toys I had in the 1960s. For the younger generations who might not be familiar with them, these were essentially rover-type vehicles run by a battery-powered DC motor. They had an automatic steering system which was completely mechanical. The vehicle would drive until it encountered an obstacle and then change course and continue in a different direction. Some were even designed to be operated on a tabletop and they would avoid driving off the edges. Granted, there was no intelligence involved in their behavior -- their choice of direction upon encountering obstacles was essentially random -- but even randomness will still cover ground, and such a rover could be tracked from orbit to correlate data with its location. Perhaps the mechanisms that these toys used could be a reasonable starting point for a Venus rover.
@StYxXx4 жыл бұрын
Cheap robotic vacuum cleaners work that way :D
@mycroft33224 жыл бұрын
“essentially rover-type vehicles run by a battery-powered DC motor.” Okay cool. “They were completely mechanical, with no electronics at all.“ *confused screaming*
@IDoNotLikeHandlesOnYT4 жыл бұрын
@@mycroft3322 Batteries and motors are electrical, not electronic.
@mycroft33224 жыл бұрын
@@IDoNotLikeHandlesOnYT if you take a second and a dictionary, you’ll realize electronic is electrical.
@luke75034 жыл бұрын
Mycroft 33 I mean I’d double check that because our lecturer would disagree
@brandonlink65684 жыл бұрын
Those old images from Venera amaze me every time I see them. It's fricken Venus.
@toreyweaver97084 жыл бұрын
I love the part where you said "This is a perfect time for you guys to stand up and show NASA how it's done" lol so great
@hellcat19884 жыл бұрын
I get that it would be complicated as hell, but some kind of craft capable of floating on the clouds and dropping a probe down on a cable to scan the surface and take atmospheric samples would probably have a significantly greater scientific capability for the size and cost to get it there.
@beavodeev44124 жыл бұрын
I was thinking this, or maybe a probe that behaves more like a submarine. It'll spend most of it's time in the clouds where the temperature & pressure is Earth like, and occasionally descend to the surface to grab a sample. Would it be possible to take on some extra atmosphere as 'ballast' to descend and vent it again to ascend? Or maybe some kind of helicopter that spends most of it's time in the cooler upper atmosphere?
@ervin00720024 жыл бұрын
Descent stage and liftoff time versus the thermal mass required to maintain temp for critical hardware would be competing and probably make it unachievable. Unless some very fine thermodynamics calculations are shown I doubt this would be viable.
@varicka14824 жыл бұрын
So a steampunk mechanical airship?
@Merlmabase4 жыл бұрын
@@beavodeev4412 It's gonna be hard to save on size/weight with a 30km cable on board
@johnellis84014 жыл бұрын
@@beavodeev4412 I thought NASA had a plan to do just that a while back. Or at least maybe a concept for it when I heard about it.
@recurvestickerdragon4 жыл бұрын
I'll be honest, ever since I heard about the AREE project/problem, I was hooked. If I were at the end of my engineering degree, rather than the beginning, I'd 100% enter to work on this amazing conundrum.
@zyeborm4 жыл бұрын
its more conceptual than numbers engineering. enter anyway
@Maus50004 жыл бұрын
I really like that track-propelled rhombus shaped rover. Reminds me very much of WW1 British tanks
@grenaders38954 жыл бұрын
Actually that's an Idea! Base it off the WW1 Tanks, easily deal with rocks and ditches
@mrbyzantine05284 жыл бұрын
@@grenaders3895 The return of the Mark 1!
@icollectstories57024 жыл бұрын
Reading your comment, my mind flashed on WWII's Panjandrum.😲
@IDoNotLikeHandlesOnYT4 жыл бұрын
@@icollectstories5702 Or the Tsar Tank
@rryk4 жыл бұрын
Commenter: I know better than NASA! Scott: Really? Step up! Commenter hides.
@flyingskyward21534 жыл бұрын
Thermionic valves operate fine at high temperature. Make a 1960s style camera and two way radio using valves, and just drive the thing from orbit
@absalomdraconis4 жыл бұрын
Yep. Don't even need a lot of power, just a way to control the wind-driven mechanisms.
@epincion4 жыл бұрын
Hmm interesting thought. The issue with Venus is that its not just high temp (450-500 Celsius) but also high pressure (90A) and very low pH since the atmosphere is mostly sulphuric acid. How long would a thermionic valve survive in that?
@michaelbuckers4 жыл бұрын
@@epincion Standard material for vacuum tubes is glass which just so happens to be the material of choice to handle sulfuric acid. They normally only have to handle 1 atmosphere of pressure differential though, so you'd have to make the glass pretty thick. The problem with those is that their power draw exceeds power budget of the rover.
@AndrewBlucher4 жыл бұрын
@@michaelbuckers Glass is a whole class of materials. Yes, some kinds of glass could do the job, and handle the pressure. Quartz would be a candidate. Glasses tend to have a short life where physical shocks are involved though.
@michaelbuckers4 жыл бұрын
@@AndrewBlucher Glass doesn't gets work hardened so as long as the shocks aren't strong enough it's fine.
@barwick114 жыл бұрын
Scott, great to see our work at NASA Glenn get a mention in your videos. GEER definitely is an incredible system. And yes, the team working on some of these high temperature systems most definitely could make some great videos (not just because of the tech, but they're a blast to be around and talk to). On that note, I sit virtually next to the GEER lead, and know most of the engineers working on high temp solutions. So Scott, if you find someone on here with great ideas, let me know and I will personally deliver a message to the folks working on this tech. If you're ever in Cleveland for any particular reason, I'd be glad to hang out and talk space geek stuff. It's your fault I got interested in space to begin with, mister KSP.
@tomfeiler59342 жыл бұрын
Wow.
@randomnickify4 жыл бұрын
Where is a protomolecule when you need it.
@linecraftman39074 жыл бұрын
on Phoebe, duh
@tweetyericsson4 жыл бұрын
Bad idea.
@Le0nnh4 жыл бұрын
Imagine being hijacked and used for intra-solsystem transfer. This post was made by the Eros gang.
@isaachlloyd4 жыл бұрын
I got you bro proceeds to pull out of pocket
@haydenparker40474 жыл бұрын
People read that book. I though I was the only person in this world who have experienced what I have. This comment made me feel less alone, thank you.
@KuraIthys4 жыл бұрын
The thought of a venus rover with a thermally hardened 6502 in it makes me laugh for some reason. XD Quick! Call some demoscene coders! We need them to program our rover!
@maxusboostus4 жыл бұрын
In space no one can hear the SID
@chrisedwards38664 жыл бұрын
The demoscene coders could probably make it jump up and dance a ballet.
@Blubb50004 жыл бұрын
Here I am. Amiga 1000 Demo programmer on Standby. 😁
@nemoskull22624 жыл бұрын
mars got sent a 8086 hardened rover.... 8 bit power baby!
@Ni9994 жыл бұрын
@@nemoskull2262 That's 16. You meant to say that some of them used the 80C85.
@buckstarchaser23764 жыл бұрын
I went to build this real quick, since it's simple... Ended up with a mechanical music box that plays Deja Vu very slowly.
@Scnottaken4 жыл бұрын
See your body into the moonlight...
@tubularap4 жыл бұрын
"If ... I ... had ... ever ... been ... here ... before ... I ... would ... proba...bly ... know ... just ... what ... to ... do ..."
@jammygamer89614 жыл бұрын
it also only moves around sideways
@kelby8104 жыл бұрын
9:32 "This concept is one of the cooler ones -- unfortunately it's only figuratively cool." Lol. Thank you for all your content Scott. Been watching your channel for almost a decade now. Congrats on the million subscribers. You deserve it!
@imad94474 жыл бұрын
oh boi its Charles Babbage time!. DEPLOY THE ANALYTICAL ENGINE
@leakingamps20504 жыл бұрын
@johnmburt1960 What kinds of boilers do you use that operate at 500 C and 90 bar?
@Kevin_Street4 жыл бұрын
Or maybe the pneumatic processor! Now *there's* a project for some hobbyists with lots of time on their hands and a 3D printer.
@alexball59074 жыл бұрын
Everyone should go and read 2D goggles now!
@wisdomnight89964 жыл бұрын
Send a construction worker from Arizona ..whit the heat from there ...man those guys dont feel. Anything ..
@icollectstories57024 жыл бұрын
It's a dry heat.
@patolenho37324 жыл бұрын
No there heats like, 30 to 50 degrees Celsius, in Venus you would have to resist 400 to 600 degrees celsius. They would die anyway there.
@thefrub4 жыл бұрын
I'm a little disappointed that a video about Venus probes never mentioned the Soviet Venera missions. We've been to the surface of Venus before, but anything outside of NASA gets forgotten.
@Lttlemoi4 жыл бұрын
Weren't the surface pictures from the Venera missions?
@marvinkitfox33864 жыл бұрын
@@Lttlemoi Yep. Used but not credited.
@ryanspence58314 жыл бұрын
yes, except those all failed in hours, rather than months or years.
@jackvernian77794 жыл бұрын
@@ryanspence5831 that's the best we had though. hours.
@Enceos4 жыл бұрын
@@ryanspence5831 And that freakin lens cap ... (^_^')
@Fluffy_6663 жыл бұрын
Love how underneath the driving rover the word „rove“ is written in the 2d graphic. „Ey yo whad does your rover do?“-„It rove, bro, it rove“ XD
@jasonbalius45344 жыл бұрын
Sounds like a good use case for 3D printing for rapid prototyping of small and complex mechanical systems.
@user-mp3eq6ir5b4 жыл бұрын
Jason Balius ☆ Sintered 3D Alloys.
@PapiSmerf4 жыл бұрын
So this is what Clickspring has been working on for the last 6 months....
@lucioghosty54354 жыл бұрын
Awesome to see a clickspring reference here!
@daylenhigman86804 жыл бұрын
Whome ia this steampunk sounding person?
@pentagramprime15854 жыл бұрын
8:25 I think there is an off-the-shelf solution. I've been meaning to purchase the Turning Tumble.
@cicad20074 жыл бұрын
As soon as I saw this, I thought of one of the first pinball machines I had as a kid. No CPU, no memory, no transistors or other semiconductors, just mechanical movements that played the game. Sometimes, a very complex game.
@Jonascord4 жыл бұрын
Many moons ago, there was "fluidic logic" This employed ducted fluids as simple computers, such as FLODAC, a proof of concept from 1964. Molten sodium is a fluid... EDIT: At the time, the 60's, fluidics was a solution in search of a problem. The transistor and the PCB could do more, faster, and kept getting smaller and cheaper. Environment wasn't an insurmountable issue, so fluidics went on the shelf.
@benjaminmiller36204 жыл бұрын
CO2 is a fluid (at those temperatures)
@TheWallsocket4 жыл бұрын
Wouldn’t fluid logic be the same as pneumatic logic, which he mentioned was being looked into for this project?
@hectoraccented53124 жыл бұрын
@@TheWallsocket Gases are compressible, a fluid is not, that changes a lot of things
@Jonascord4 жыл бұрын
@@TheWallsocket Pneumatic would be a gas, as a rule. Liquids are not compressible. The different properties offer different programmable abilities.
@drunkenhobo80204 жыл бұрын
Gasses _are_ fluids. Although the surface of Venus is so hot and at such high pressure CO2 is a supercritical fluid.
@thundercactus4 жыл бұрын
"you can't build a mechanical radio" morse code flashing light: "am I a joke to you?"
@nemoskull22624 жыл бұрын
you could go pizo electric to spark gap, thats about as close to mechanical radio as i can think of.
@Blox1174 жыл бұрын
it could be a passive radio circuit like the RFID scanners used in stores
@Marinealver4 жыл бұрын
Thing is what flashlight will penetrate the atmosphere of Venus?
@IDoNotLikeHandlesOnYT4 жыл бұрын
@@Blox117 Those still use semiconductors that don't deal with high temperatures well. You could make a SiC-based one, but you'll also have trouble getting any significant power transfer to power that passive transponder between a satellite and something on the surface. Then it has to use some (probably most) of that extremely small amount of energy it received to transmit a reply, which it will probably be transmitting omnidirectionally. The satellite would probably need a far bigger dish antenna than has ever been launched into space. (The biggest I've heard of is ~350 ft/~100 m in diameter, but presumably nobody outside the US military knows that such a satellite was actually launched: 1.bp.blogspot.com/-KDJOHqIy_A0/UtitGPxRkuI/AAAAAAAAPSo/zEbsWyUm2EI/s1600/sigintadvancedoriontrumpet.jpg)
@smorrow4 жыл бұрын
What powers the light?
@Jmacc1824 жыл бұрын
I really hope that we explore the surface of venus in my lifetime.
@thefrub4 жыл бұрын
Landers have been sent to Venus already, look up the Soviet Venera missions
@theambergryphon42664 жыл бұрын
@@thefrub I think he meant "we" meaning humans landing on venus. Probably not going to happen soon.
@ryanhopf83244 жыл бұрын
@Jeffery Amherst lol
@RCAvhstape4 жыл бұрын
Unmanned landers have already done so, many years ago since, but if you're talking about manned landings, forget it. In addition to the extreme (and I mean EXTREME) difficulty in keeping a human alive in that hellish environment, you also have the problem that ordinary rocket engines will not work in that extreme ambient pressure. Venus is a great setting for a sci fi story about a prison planet from which no man can ever escape.
@sunnyjim13554 жыл бұрын
@Jeffery Amherst You had to be THAT guy, didn't you.
@antonvoloshin98334 жыл бұрын
That's what I'm always talking about - to live in cooler climate is better than it warmer one. To keep things warm in cold environment up is waaaay easier and energy efficient than to cool down something in hot environment :)
@therocinante34434 жыл бұрын
Awesome! I'm so fascinated with Venus. Ever since I saw the SFIA video about colonizing it, it's that much more interesting to me.
@Twitch7604 жыл бұрын
It's the better candidate for colonization if you ask me. At first floating cities then slow and steady sequestration of the CO2 in the atmosphere. Maybe even launch it at Mars to help build an atmosphere and heat it up.
@jeffvader8114 жыл бұрын
David Thompson The major disadvantage is that access to surface resources is very difficult compared to Mars.
@Twitch7604 жыл бұрын
@@jeffvader811 I was thinking more along the lines of energy in the form of solar power, and wind power. Travel times are also half as much as a trip to Mars. Surface resources wouldn't be reachable until we managed to lower atmospheric pressure down enough for a diving hard suit to withstand. Obviously not the current models which weigh hundreds of pounds but something along those lines.
@jeffvader8114 жыл бұрын
David Thompson True. Personally I feel that Mars will be the first planet (other than Earth) to be colonised, because self sustainability will be easier to reach in the short term. But I don’t doubt that Venus will probably receive similar treatment at some point.
@sunnyjim13554 жыл бұрын
@@Twitch760 Would be a better idea to take the CO2 from Earth's atmosphere then, seeing as it's soooooo 'problematic'. XD
@24680kong4 жыл бұрын
My idea was to use vacuum tubes (thermionic valves) to make a radio control system. They tend to be large, so you couldn't fit very much computing power. But the are perfectly fine working at high temperatures. So that is one way to send standard radio signals. Figuring out what to send would be a tad trickier. Edit: Vacuum tubes have a bad reputation for breaking because of thermal cycling. If you keep them hot (in the venus atmosphere), they are much less likely to break. A good vacuum tube will last years.
@airgunnut94894 жыл бұрын
radar reflective pales in a certain order to send information, so with all the high tech communication devices we have, we have gone back to using semaphore.
@anim8torfiddler8714 жыл бұрын
Thank you, Mr. Manley. My brain is getting stretchmarks. This takes me back to Jerry Pournelle's story "King David's Spaceship," that included the launch of an orbiter lifted by a series of downward-directed cannon shells and a navigation/orientation/steering computer with mechanical linkages. It functioned - barely. Enough to achieve the larger objectives of its culture. (not gonna spill the beans with a spoiler...) Mr. Pournelle knew how to put together a great story, and his collaborations with Larry Niven anticipated a number of developments that have come to pass... Underscoring the value of some Science Fiction as a platform for predictive speculation. Art and life intertwine, feedback, anticipate and inspire. Your videos are welcome reminders of the positive contributions of the Space Program, that people so easily forget. We have so many technologies for solving persistent problems here on the ground that were developed in response to the hurdles and challenges of getting above the atmosphere and surviving and returning. It's a very long list. Most people take them for granted, and many dismiss human space exploration as a waste. Meanwhile they enjoy and depend upon hundreds of spin-off technologies and tens of thousands of innovative products in utter ignorance that they came to exist directly from the research and development in the Space program.
@Ty4ons4 жыл бұрын
Molten salt batteries seem like a perfect fit for this. It could melt on the surface and wake up the rover. Heat resistant electronic circuits seem like the obvious solution for this. If they’re comfortable running at 450C then cooling is going to be easy with the thick atmosphere.
@Swifteroos4 жыл бұрын
Salts melting point is around 1470°F the surface of venus is only 870°F
@Biped4 жыл бұрын
@@Swifteroos who's talking about NaCl?
@gordonlawrence14484 жыл бұрын
Molten salt batteries would not provide enough power. the energy density is way less than lead acid never mind comparing to Lithium.
@kristoffersweden80004 жыл бұрын
I was thinking something similar, maybe an endothermic reaction. Some chemical reaction might just be the way to go here.
@Ty4ons4 жыл бұрын
@@Swifteroos These aren't regular salts like table salt and are only a few hundred degrees celsius. If we go to the extreme end and use large molecules for the ions we can make salt that is liquid at room temperature. en.wikipedia.org/wiki/Molten-salt_battery
@Astrofrank3 жыл бұрын
One suggestion for moving: When I was a kid, there were toys in shape of cars that were driven via two wheels attached to a rotatable disk. Regularly the motor powered the wheels, but when the "car" hit an on obstacle like a wall, the resulting drag not only stopped the wheels, but this also started the disk to rotate. When the wheels could rotate again, the rotation of the disk stopped and the "car" moved again.
@gugamovies4 жыл бұрын
Venus, it’s a hell of a place!
@auralgo4 жыл бұрын
Thanks Scott! Red Hot! Wasn't aware of silicon carbide. Will be losing a night's sleep there. Thanks for the IEEE link! Still believe a zeppelin in the "Green Zone" could equilibrate and make deep dives into the hot, denser part of the atmosphere take a few pictures and then rise to shed heat between sessions. Your treatment of topics was great. Love the brief review of heat exchange barriers that limit nuclear power sources, and the "steampunk" mechanical hybrid rover systems. Comprehensive and balanced review. You've been working hard recently. Don't stop! Never go a more than a few days without checking your site.
@andrewpaulhart4 жыл бұрын
High temperature semi conductors / electronics seems like the most useful goal.
@jackvernian77794 жыл бұрын
Indeed
@cdl04 жыл бұрын
People have been working on this for decades. Diamond would be the best material for this job. Boron works for p-type doping in daimond, but n-type is problematic. Nitrogen makes a deep level, so does not work, while phosporous has low solubility and tends to form compensating phosphorous-vacancy defects. Lack of a solid native oxide is another problem, but not completely insurmountable. The difficulty with silicon-carbide is it easily forms extended defects such as stacking faults and dislocations which mess up the electronic properties. So, it is still very much a work in progress.
@jackvernian77794 жыл бұрын
@@cdl0 those damned n-type semiconds... always a pain in the ass.
@jackvernian77794 жыл бұрын
@@cdl0 If you don't mind me asking, what about the difussion of the dopant under 600C temp? How much would it affect the lifespan?
@cdl04 жыл бұрын
@@jackvernian7779 It is possible to make a p-i junction in diamond . . . . It works.
@MrNeptunebob4 жыл бұрын
GE Appliances did something like this when they came up with their self cleaning ovens in the 1960s. Their P7 system was all mechanical controls like mechanical timers and linkages for the door lock (you cannot open the door during the super hot self clean cycle). Today's self clean ovens use an electronic package for the oven controls and sometimes, if it overheats, you don't have an oven at all until you call a repairman.
@MrNeptunebob4 жыл бұрын
One interesting part of the story: GE could not patent the concept of using high heat to burn food soil off of an oven, but they could patent the controls needed to get there. So every manufacturer had to come up with their own controls to get the oven up to such a high temperature, 900 degrees F (or pay GE for their patent). When Frigidaire was part of GM, they had a very complicated mechanical setup but a Frigidaire oven cleaned up spotless, Kenmore, for example did not do as well. Frigidaire, now Electrolux, uses the electronic controls that are too heat sensitive. Whirlpool has the worst situation with their wall ovens. Run the SC cycle too long and you fry everything to the point you cannot use the oven at all.
@rade-blunner78244 жыл бұрын
Damn it, I wanted Strandbeests on Venus! And also airships!
@dexdrako4 жыл бұрын
the standard strandbeest is not designed to handle anything but flat ground, even a small rock can stop one in its track. there are some variations that can do better but they all have limitations that wheel/tracks don't in the end strandbeests are there to look cool (and i have the homemade strandbeest walking desk to prove it.) not work well.
@ravener964 жыл бұрын
vacuum tubes have to be heated to much higher temperatures to work, passively being hot might actually be a benefit.
@nemoskull22624 жыл бұрын
there just so fragile, then again, there hasnt been much done to make a better vaccum tube with todays knowledge.
@Zarcondeegrissom4 жыл бұрын
@@nemoskull2262 and it would exceed the power budget.
@icollectstories57024 жыл бұрын
@@nemoskull2262 Nuvistors are smaller and more robust. I think the materials would have to be changed anyway. I assume the Soviets launched tube-based radios into orbit, but can't find a reference.
@csehszlovakze4 жыл бұрын
@@nemoskull2262 I'm pretty sure the leading militaries have at least some modern vacuum tube tech. I'm not sure but it might be impervious to EMP's.
@MottyGlix4 жыл бұрын
But isn't it only the cathode filament that has to be hot? If the grid(s) and anode are hot enough to emit electrons, won't that eliminate the effectiveness of the vacuum tube*? (*"valve" in British English)
@jerry37904 жыл бұрын
Some ideas: Have a “pin” in the wheel that falls out partially when the wheel is halfway over a cliff, this is a simple mechanical way to detect cliffs. Have the rover naturally turn left or right when travelling over an incline. After a certain threshold the rover should do a 180. Use your rovers suspension to detect rocks/rough terrain. Perhaps make the suspension in such a way that it turns upon encountering terrain above a threshold. These ideas may not be practical but I hope it helps someone however unlikely it may be.
@liamburgess33854 жыл бұрын
first ones really clever tbf
@cgunugc4 жыл бұрын
First one relies on no dust getting into the sliding mechanism. It also would trigger at slight irregularities (bumps, divots) in the ground, while not triggering on a smooth slope rapidly going downward (the wheel would never lift from the surface). I like the other two ideas, and the second one is actually something we somewhat implemented in my college robotics club! Even if I'm shitting on the idea, keep coming up with them, please - without people willing to push boundaries, we can't innovate.
@vocassen4 жыл бұрын
Well nothing you said specifies how you want it to be implemented - which is the hard part. Detection in the sense that SOMETHING moves when you find a trigger is not a problem (although the wheel would have to be very large to house pins long enough, e.g. 20cm, to effectively find a cliff. Also cliff could be a small slope going steeper and steeper). But how do you mechanically transmit that signal to the driving mechanics (through the weel, axle, etc) and amplify that small teeny tiny movement to affect driving mechanics. Also you'd need so many pins in the wheel that it's just too complex. To solve at least some problems: Have a single heavy wheel extend on an arm outwards. Needs to be heavy to have enough force to trigger mechanics. Inclination too high, presses inwards into the rover, continuous force that can be used to drive turning mechanics perhaps. On a cliff or steep decline it will pull the cart unfortunately, but if it get's too steep the arm extending within the rover can trigger a one-way brake with quite a lot of force (lever action) above the rotation axis, maybe with the braking force immediately being translated into a rebounding force. Still a ton of problems with that but whatever
@agentk39844 жыл бұрын
I think a good camera would alleviate all those concerns.
@KuraIthys4 жыл бұрын
@@agentk3984 Yes, but building a camera at all that csn survive on venus is extremely difficult. Plus if you have a camera you need image processing logic or it's a moot point for navigation purposes.
@nickmudd4 жыл бұрын
Please keep us up to date on any entry info, I love this stuff
@Stormcrow_14 жыл бұрын
Ahh, pneumatic logic I remember working with that on Type 42 destroyers.
@donjones47194 жыл бұрын
That's a military ship. Who let logic aboard? ;)
@Stormcrow_14 жыл бұрын
@@donjones4719 I didn't say it worked did I? :)
@tehbonehead4 жыл бұрын
Better than vacuum logic... imagine being limited to 10 psi absolute.
@BB-iq4su4 жыл бұрын
Loose lips :x
@Stormcrow_14 жыл бұрын
@GORGEOUSGEORGE You can design a system to work well in one environment but not very well across a very wide range of environments. In UK waters the Logic systems worked well. But a warship doesn't stay in one area. The changes in temperature and humidity added to the shock, vibration and salt laden air tended to trash the systems pretty fast. :(
@chrisspry87363 жыл бұрын
So I was watching this video… and I noticed a familiar name on the paper at 6:15 :) I’m late to the party but you have no idea how happy I am. A year later and the chips are now much more advanced and he has approval to send them on TWO discovery-class missions to our sister planet, based on this year’s decadal survey. Additionally, he has developed the tech needed for cameras on the rover. His plan is to broadcast the data to a geostationary satellite in orbit, assuming that nothing moves too quickly👽😅. Love the videos man!
@chrisspry87363 жыл бұрын
I really hope you see this. It would make my day.
@BGraves4 жыл бұрын
What about a bunch of heat resistant probes that are disposable that are dropped like a carpet bombing. Even if they only last a few minutes maybe they can be purpose-built for only one function and doing it quickly.
@qzg78574 жыл бұрын
Kinda Russian way but with more veneras
@QuackingQuietly4 жыл бұрын
interplanetary bombardment right there.... could work
@admiralnips82944 жыл бұрын
I think they're looking for just rover ideas but this is not a bad idea! See if you can do something with it!
@spacenomad54844 жыл бұрын
Couple of problems with that... Considering that it takes the GDP of a small country to send equipment on such a mission, we want to get back some valuable data. Having a minute worth of seismic activity, temperature (right after entry into the atmosphere), brightness etc. isn't exactly worthwhile. Also: Why carpet-bomb venus with self-contained sensors all requiring their own power supply and housing, when you could just place 1 probe where multiple sensors can share the housing and power, and thus reduce the weight that needs to be shipped over there?
@jackvernian77794 жыл бұрын
@@spacenomad5484 you're not putting all your eggs into one basket by having multiple micro-probes which are then sent down in maybe batches of 5 each. If one fails instantly some will outlast.
@Moldybeard4 жыл бұрын
Screw the surface, I want to see a probe floating in Venus's atmosphere.
@VoidHalo4 жыл бұрын
Nevermind that. We need to send a cat to the ISS. I think having a cat up there would provide a much needed boost for morale. But somebody needs to design a space diaper for cats first. Cuz I don't think a litter box would work so good in zero G.
@byronperry89314 жыл бұрын
When the fur sheds it would be a real pain...
@chriskerwin39044 жыл бұрын
@@byronperry8931 just shave the cats...
@jl.77394 жыл бұрын
Nothing\ ok so naked cats that don’t litter. But what about sloths? I want to see a weightless sloth! Without the Hinderence of gravity they have limitless potential to evolve.
@byronperry89314 жыл бұрын
@@chriskerwin3904 i think that would considerably decrease the moral boosting efficency, maube ypu could have a drone that follows them around with a vaccum cleaner.
@kilikus8224 жыл бұрын
Why would professional astronauts need a morale boost IN SPACE? Even the prospect of going to space was a morale boost for their entire careers.
@networkplummer4 жыл бұрын
In around 1972, a company in Tucson (backed by Baldwin) was making integrated circuits that worked on the principles of the old vacuum tubes (cathode, grid, and plate). The devices were heated up in order to make them work. The original electronic computers were based on vacuum tubes. I recall that someone was thinking this might be workable kind of electronics that could be used on a venus lander.
@conorharris24514 жыл бұрын
Incredible that these mechanical computers can do so much!
@fridaycaliforniaa2363 жыл бұрын
I still find this mindblowing when I look at how things evolved in such a few time. CPUs from 1980s and from now are amazing.
@hamslicemcdooogle80804 жыл бұрын
“Hello it’s Scott Manley”...where? Are you here? There? Change has me frightened.
@beeschamelsoose4764 жыл бұрын
I was equally shocked
@gonufc4 жыл бұрын
@@beeschamelsoose476 Shocked and/or appalled.
@mugwump70494 жыл бұрын
I gotta say that the idea of an entirely mechanical rover, which on top of that emits data, is kind of mindblowing...
@jeffgilbert54194 жыл бұрын
"Maybe you can show us how its done" - Shots Fired
@buttonsjr4 жыл бұрын
Came back here to watch this video again after the Venus Phosphine announcement. We gotta get some samples back.
@peterihre93734 жыл бұрын
"Step up and show that you are better than NASA" Just loved that! 👍🤣🤣🤣🤣🤣
@ДаниилГалахов-ц8г4 жыл бұрын
Wow! I wanted to ask about any communication possibilities for such all-mechanical rovers, but even this have a solutions! "Wow" is only word to characterise this project!
@erkdoc54 жыл бұрын
Let's see how many designs account for thermal expansion. We'll need to explore venus to test how to handle our future atmosphere.
@josephstevens98884 жыл бұрын
I remember an episode form the "Six Million Dollar Man" in which a Soviet tank-style Venus rover inadvertently landed back on Earth - after passing through the atmosphere of Venus - and was raising all sorts of hell - I think it was somewhere in Arizona. No one could stop this rover because it was designed to operate on the extreme conditions of Venus - until it met Steve Austin, of course! Ah, the 1970's.... times were sure different back then. 'm looking forward when a successful Venus lander/rover is attempted.... some exciting times ahead for us!
@LinuxGamersArchives4 жыл бұрын
I believe this particular episode is referenced in "The Martian". Man, that book is good
@jmd17434 жыл бұрын
I'm happy that we're moving past another generic Mars rover. Hoping we get Neptune and Uranus missions.
@jmd17434 жыл бұрын
@András Ács I knew about the little drone, being developed, I was referring to radically different missions. It's going to be redundant to invest the money on another generic rover mission when we can accomplish more on foot in a weekend on mars,, than decades of Martian rover programs. NASA should be trying out new ideas like this clockwork rover for Venus, Europa clipper, missions for Uranus & Neptune.
@jmd17434 жыл бұрын
@András Ács If you can't come up with something innovative for Mars, then focus on a Neptune or Uranus mission.
@A.Lifecraft4 жыл бұрын
"Hey do you still build that cool steampunk-rc-car?" - "Nah, this is on its way to venus already"
@GiusePooP4 жыл бұрын
Congratulation again for your 1m subscribers
@philrabe9104 жыл бұрын
Long before Mythbusters, I built a kitchen set possibly for bug spray or an exterminator service. My big deal was an oversized "under the fridge" set piece they could move around to camera. Well here comes Jaime who had built a spider animatronic with 8 articulated legs. I asked where he got the parts, he said they had machined them at M5. The spider was about the size of a matchbox, with a hair thin control wire.
@wadsefrgthzjkl4 жыл бұрын
Rover with Balloon at a 50km string :D
@ScottManly4 жыл бұрын
Might have to go back to some of the low-bit, computer tech of the Apollo program era. Never ceases to amaze me how much they did with so little memory.
@milosdewit75624 жыл бұрын
That will be some beefy soldering points
@drunkenhobo80204 жыл бұрын
Might have to be lead-free solder though!
@timothy84284 жыл бұрын
Mig weld SMD components to the PCB. Bzzzzt.
@hunbun1014 жыл бұрын
Congrats on 1 million subs!
@NuffMan_4 жыл бұрын
Maybe vacuum tubes could work. Heater element not needed, better efficiency :)
@__-fm5qv4 жыл бұрын
I guess the only problem with that is maintaining the vacuum, even almost all space ships leak air into space. Building a rover that won't leak under such an incredible pressure differencials would be difficult, not to mention extremely heavy. Imagine having a box with a vacuum in it being dropped to the bottom of the ocean, thats the sort of pressure we're talking. The shell, or bit between the vacuum and the outside would have to be incredibly strong to not just be crushed like a soda can. And the stronger you make something the heavier it gets. The heavier it gets the more limited you are in equiptment or size, and the harder it is to launch. Sure you could just launch it on SLS, or Starship potentially but the cost would be astronomical compared to the science capability of the rover, at least when you stack it up against any of the mars rovers.
@r_a_4 жыл бұрын
Whenever I think about the vastness of space and extremely hostile conditions of all the other planets like Venus I feel breathless. Earth. Our one and only home.
@gierdziui90034 жыл бұрын
Finally, some REAL technology. Every idiot can make a digital rover. This is going to be fun!
@csehszlovakze4 жыл бұрын
except for you of course.
@gierdziui90034 жыл бұрын
@@csehszlovakze ? wth dude i got 7yrs of ksp experience perish jk i didnt even mean that i cant just that it will be challenge for people not used to mechanics and the competition will be interensting to watch peace👍
@smorrow4 жыл бұрын
I mean..the mechanic rover might also be digital, I don't know
@tomschmidt3814 жыл бұрын
Interesting challenge. We are all so used to modern semiconductors tend to forget about mechanical systems. I was a military avionics tech in the 1960s. Even then a lot of aircraft systems still depended on analog mechanical computing.
@s.sradon97824 жыл бұрын
what about micromechanisms? surely the miniaturization of certain mechanisms to the microscopic scale would lead to significantly lighter and more compact mechanical logic.
@thenasadude68784 жыл бұрын
Yes, just remember to keep them machines in white chamber conditions or they will seize with dust at the first gust of wind
@s.sradon97824 жыл бұрын
@@thenasadude6878 and that is why CPUs are capped with a silicon die. It is obvious that any microscopic components would be shielded.
@zyeborm4 жыл бұрын
I designed a refrigerated rover for venus once. The trick is not using RTG's, instead use a fully critical nuclear reactor. The best part is you don't need to worry about polluting venus, not like you're going to make it worse. Design of the reactor was left as an exercise for the reader.
@robson62854 жыл бұрын
Haaa, finally I hear the one and only real Scottmanleytune that sets my brain in that so long-beloved interesting-spacerelatedphysicsknowledge-coming state! (Thus nót that other tune, i mean that one that means it is another ksp-vid starting which maybe okay for many but wich mostly lacks anything new. Oh, about that: the vids i still cannot enough of are those under the title "things ksp does nót teach!"! Oh what a good time to learn such most difficult sciences so easy but totally troughole/clear explained on youtubes ScottManleys superspacerelated sciences)
@xiphosura4134 жыл бұрын
I want to be able to speak this language
@PaulaBean3 жыл бұрын
I agree. Venus deserves more attention. Mars seems to be getting all the interest nowadays.
@VeraTR9094 жыл бұрын
Get Clickspring on it stat!
@gielmarkbacus73684 жыл бұрын
thanks for increasing the competition Scott. just kidding, gr8 video and its nice to have more people interested in stuff like this
@Rchals4 жыл бұрын
Easy, just put inside the rover a self-sustained cold fusion reactor to keep its guts at a nice hot earth summer temperature.
@mrmullett10674 жыл бұрын
I think I'd look at utilising a drone concept and avoid contact with the surface for the moving around bit .. the atmospheric conditions on Venus are almost fluid, explore from that natural Venusian environment and stop having a battle with Earth based environ"mental" .. logic. I love your stuff Scott. Cheers from New Zealand
@skenzyme814 жыл бұрын
FLUIDICS. Lead-based fluidics!!!
@tarmaque4 жыл бұрын
I'm glad someone other than me thought of that one, so I didn't have to bring it up. Probably not lead though, although there are some pretty high temperature liquids available. Oddly, Sodium metal might be a better choice. Or NaK. Then again, remember gasses are fluids too. A pneumatic logic is technically a fluidic system. The architecture is the same, with the design of the valves and pumps being the difference.
@BB-iq4su4 жыл бұрын
Now that is interesting. Fluidics with gases works. Compressed air computers . You can make oscillators, logic gates and memory. Many of those functions rely on the behavior of a compressible gas. Lead boils at ~1200C . I imagine lead gas to have some interesting properties. Not sure if liquid lead could work as fluidic medium. There certainly are other potential mediums. Mercury maybe. Zinc , selenium, sodium, potassium. Imagine a potassium gas fluidic computer running at 800C! I want to build one......
@tarmaque4 жыл бұрын
@@BB-iq4su Famous last words. One leak and BOOM!
@eekee60343 жыл бұрын
You absolutely can build a mechanical radio transmitter. :) You need a moving shaft with a magnet, a stationary coil around this, and an antenna connected to the stationary coil. Rotating or oscillating the shaft at various speeds changes the frequency, yielding an FM or FSK encoding.
@jnawroc4 жыл бұрын
Hello sir, first thing I thought of when I listened to this was this old documentary I remembered watching when I got lost in KZbin while finding more about Apollo's weaved memory - "MAGNETIC CORES - PART I - PROPERTIES" (watch?v=HPT7Wtp3yoo) it is about doing logic gates using magnetic cores. Could you please share your thoughts on a viability of resurrecting this technology for purposes of Venus exploration, maybe this could be made more resistant to heat
@ericliu22774 жыл бұрын
I'm pretty sure that magnets don't fare too well under heat. Above a certain temperature, most magnets just lose their magnetism. I highly doubt that it would work on the surface of Venus. It's an interesting concept, but if you can find a way to protect a few magnets from extreme heat, you can definitely protect a modern computer chip from heat.
@nathanlewis424 жыл бұрын
I'm far from an expert but I also like the idea of a craft that operates more like a submarine even if it can't get all the way down to the surface. The Soviet probes managed to last 2 hours or so IIRC so it should be possible to dive down get data and rise up again. Such a probe would also see much more of Venus than a surface rover. Also I've read that the high mountain tops on Venus are thought to be covered in metallic snow. That would be cool (figuratively) to see.
@MrTurboTash4 жыл бұрын
What about putting the electronics in a vacuum to reduce heat transfer then only worry about cooling the support rod
@radicalgale4 жыл бұрын
But the electronics need to interact with the environment anyways
@VoidHalo4 жыл бұрын
You mean a thermos?
@Oscar4u694 жыл бұрын
there's no way to dissipate the radiating heat
@MrTurboTash4 жыл бұрын
@Nothing\ Same concept yes @Opper Darwin @rodrigo m I'm thinking about a support rod with power and data cable, which would still have heat transfer but at a lower rate easier to manage by the heat pump
@maxidejf4 жыл бұрын
That's what I was thinking as well. Surely the heat radiation from the outer shell would be lower than what the active cooled hanging rod will provide to the inner shell, right? And if need be, this process can be repeated (like 3 "thermoses" within each other providing lower "heat radiation/rod cooling" ratio with each layer)? Now, since this very simple concept it makes me think that I have missed something obvious that mission architects did not... :)
@ogladaczjutjuba37454 жыл бұрын
You know what? Once I had a dream about being a member of a manned mission to Venus. You may think I am crazy but sometimes I have such "lucid dreams", very rarely, like once in a year or two. They tend to be quite realistic even if definitely dreamlike. After waking up I thought a bit of what I just dreamed and concluded that after polishing some corners it would be a viable SF story. To keep it concise: a base had been build by robots, powered by convectively cooled high-temp nuclear reactor with gas turbines and generators, located across a low ridge to shield the base from radiation. The base was a small habitat with Earthlike atmosphere, a workshop with Venusian atmosphere composition but with normal temperature and pressure to save on oxygen to purge the interior (crew working in respirators and light suits), and machinery compartment with 4-way redundant high-power heat pumps cooling all the interior, outside radiators made of titanium with forced Venusian atmosphere flow. In the workshop the crew would prepare various drones and rovers for short-term automatic missions, launching them from an airlock and refurbishing them after they return and cool down. The access to the base would be by a shuttle from an orbital station, powered by criogenic fuel/oxidizer liquid rockets. A shuttle would land near the base and stay there for the time needed for the crew to enter the habitat (cooling itself by evaporating criogenics) then take off and soar in the upper atmosphere on standby for a rescue mission (if something happens). There would be two shuttles taking turns in standby, and returning to orbital station for refueling. After landing, the crew would don heavy exoskeleton suits similar to those rigid suits used for deep diving, walk to a rover similar to the Apollo one, powered by high-temp RTGs and induction motors, operated by simple switches only, no electronics, and drive to the base. They will enter the airlock, wait for purging the lock and cooling down the suits and enter the habitat. Of course there will be a lot of technical challenges to do that (and little sense in a manned mission to Venus), but this is what my brain created in its spare time, which it should use for sleep! Not much sense in a dream, but almost good, for an SF story at least. Pity I have little writing skills :-)
@gavinkemp79204 жыл бұрын
oh I think its time to dig out the ironstrider engines
@grenaders38954 жыл бұрын
I'd have said Dune Crawlers
@gavinkemp79204 жыл бұрын
@@grenaders3895 nah I much prefere the circumnavigating clock work walkers of mars.
@nymbattheeternal12792 жыл бұрын
Scott Manley at 9:41 : "I see plenty of comments on my videos from people that clearly think they know better than NASA, this is a perfect time for you guys to step up and show us how it's done"
@streglof4 жыл бұрын
Theo Jansen was literally the first thing I thought of
@CKOD4 жыл бұрын
I like how the slide at 6:05 has citations for 'Primary batteries run out, and rechargables need recharging' In case you dont believe them and demand the source.
@Chu8rock4 жыл бұрын
I've never seen a video uploaded 16 seconds ago.
@mikeksp91774 жыл бұрын
Mine was 58
@muggletierchen11034 жыл бұрын
27
@buckstarchaser23764 жыл бұрын
13
@dozodub4 жыл бұрын
Potato
@qmperator4 жыл бұрын
Chips
@iconsumedmt13504 жыл бұрын
It's actually a piece of cake. What they need to do is hire all the experts from the comment section and BOOM you've figured out how to build a venus Ferrari