Why Not Send Crew Dragon To The Moon? (And Other Questions) | Lightning Round

[@peterkallend5012]

As a pool technician, evaporation is a big deal. Pool covers absolutely help prevent this. The average volume of pool my company installs is around 15,000 gallons. We are based in the Chicago area, so I can only imagine how acute this becomes in a desert environment. Refilling evaporated water with fresh water when there is a definite shortage of that commodity is not only irresponsible, but it's dangerous for communities with scarce access to fresh water in the same geographic region.

[@aaron_brown7324]

I had a 200 gallon reef tank that lost about 12 gallons a week to evaporation… that’s a lot and should scale up to be a lot higher than people think…. But it does come back down somewhere

[@michaelsmith4904]

Without evaporation, how do you keep the pool water from getting too hot? And in my experience, you really need to watch the wster conditions like a hawk or when you take the cover off you have so much green you need to shock the pool eight or ten times and still wait a week for eveything to filter out… with the cover off.

[@peterkallend5012]

@@aaron_brown7324 it comes down somewhere, but not back into the pool it evaporated from, and usually not in the area that has a water shortage. Filling the pool back up further exacerbates the water shortage. Que next, inevitable evaporation event and so the viscous cycle continues.

[@peterkallend5012]

@@michaelsmith4904 laws of thermodynamics. The water still evaporates if there is a non mesh cover, but it condenses and drips back into the pool from the underside of the cover. That way, the pool still has the evaporative cooling, but it doesn't loose the water to the environment. That's especially useful with salt water pools.

[@peterkallend5012]

@Astrocat 3D yep, they're called solar covers. They help, but they only really heat the surface layer, which doesn't always circulate back into the cooler water below it. 95% of the heating still comes from the heater unit (either electrical or gas powered), so you're not benefiting as much a you'd think. Now, if the heading unit were an electrical powered heat pump (more efficient than a standard heating unit) that gets its electricity from solar cells, that's a different story altogether, and you wouldn't need the solar cover in the first place.

[@daemianbox]

The whole video deserves a thumbs up, but if it were just the two seconds long where Tim and Scot says "yes", that would be more than enough to deserve a thumbs up. Priceless!

[@erideimos1207]

That was maybe the most complex intro I've ever seen. Joe, you emoted very precise emotions, like carrying on the conversation in gestures that everyone understood. It was essentially a silent funny stand-up. That was truly incredible. I've watched you forever. I would be interested in how someone who saw you for the first time would react. Brilliant show as always!!

[@PBeringer]

The psilocybin question was a great one! It was great to hear about your personal experience, and I can actually relate strongly to what you described feeling the following day - kinda like a total readjustment of perspective. In fact, my psychiatrist/psychotherapist is trying to get me into a psilocybin guided therapy trial at the moment (this is New South Wales, Australia, for clarity), but the only reason I can qualify is many years of "treatment resistance". These kinds of things do develop VERY conservatively, especially in Australia, but it'd be downright cruel for that to remain the case if a treatment were approved in the future. When I think about the extremely positive few recreational psilocybin experiences I had in my early 20s and the subsequent periods of stable and elevated mood, absence of anxiety and panic and just general lucidity (I assume from the absence of things fogging my brain), I get really optimistic that accessing a guided psilocybin psychotherapy trial is going to really help. It is promising that we're at least at a clinical trial stage, though, and apparently getting excellent results.

[@simpleman5688]

Numbskull

[@grn1]

I've never tried shrooms before but I am kind of interested. My brain sometimes gets stuck on things that then make it impossible for me to focus on what's important so if psilocybin can fix that I'm down. It is a bit scary to me to lose control or let others into my mind (there's some dark shit in there) but I know it's probably for the best if I do (gotta find someone trustworthy though).

[@patrickwalters8817]

Joe, the little song and dance that you did after saying “boasters” intentionally is literally one of the funniest things I have seen in years. Keep up the great sense of humor in your posts!

[@RMFUEN]

I must have laughed for 5 full minutes!

[@Emira_75]

It was terrifying I really sont vibe with his humour but I absolutely love his videos

[@turkosicsaba]

Basic rule of doing back of the envelope math: round your numbers. There is no need to specify a whole bunch of significant digits when you're making assumptions with margins of error of 30%.

[@ahaveland]

Depends on the number of assumptions, as they accumulate over a number of steps, so better to try to be as accurate as possible, and round the numbers afterwards.

[@kevdaag2523]

Eg, averaging 10x20 with 20x40 gives 500 sq ft. Would have both easier and more correct.

[@rootkite]

This was one of the most interesting and varied lightning rounds I've seen from you, Joe! Really diverse selection of topics. I'm also always happy when sensitive, intelligent people come out of the psychedelic closet or just give a well-rounded response to queries about their own experiences. Thank you so much for your channel!

[@YoungBuck7912]

I feel like in every video we learn a little more about Joe, and sometimes that's just as good as if not better than the other topics

[@TheEGCRACKER]

Dude's neat, is cool. 👍

[@matheussanthiago9685]

joe is one of those guys that makes I wish I was his nephew

[@DRAGONS_SIN_]

Did you notice the lack of eye contact with the camera when it came to the shrooms also?.......he enjoyed that trip way more than he let on! I like these videos more than single subject ones sometimes

[@pottyputter05]

I think its because of the time we've watched and the fact so much of the human element has been missing from this medium until much more recently.

[@sambojinbojin-sam6550]

Yep, even Joe is annoyed by the amount of Creepypasta stuff he watches, to the point that he can become judgemental upon it and the vocal delivery of it, on his science commentary show. I'm not sure whether this is strangely messed-up or hilarious. Oh, science..... (I mean, no judgement here. I animate random hotties and anime waifus on IG while trying to understand the universe, so science is a multivarious trip on inspiration)

[@rogerbeck3018]

the bonus "information" from both Scott and Tim was brilliant, great edit by Joe

[@thedarkknight1971]

17:42 - What you're saying Joe is one reason why I also LOVE 'Cool Worlds' videos, David Kipping, the way he speaks, is just, natural, calm, easy going, and at a pace that you can follow easily. Yes, he does use some technical terms that have my mind ponder for a moment to understand, but generally, nothing in his videos are 'mind melting' in complexity. The visuals, the script and his voice perform marvels at making you go "Wow" with amazement at what he's explaining about life, science, discoveries, ideas and the universe. Anyone reading this that haven't watched any 'Cool Worlds' stuff, please, do. It's learning but in a relaxed, easy going and brilliant! 👌 😎🇬🇧

[@NewMateo]

A trip I had on mushrooms while camping with friends basically cured my depression. I really hope society wakes up and keeps researching its benefits. Esp since I only had to do it once and havent used any since then.

[@scrappydoo7887]

No profit in that unfortunately. The home production of medications that stop the need for long term treatment will never be allowed.

[@SonofTheMorningStar666]

Micro and macro dosing mushrooms helped me in ways that no antidepressant ever could. Was on that crap on and off for over 20 years.

[@ridleyroid9060]

I don't think society should "investigate the benefits" of a highly toxic psycho active hallucinogen, it can destroy you if you are not ready for it and I've seen first hand what these kind of drugs can do to people who are otherwise normal.

[@insomniapetals4424]

@@scrappydoo7887 Actually, there are research studies going on right now to determine the efficacy of micro dosing of psilocybin for the treatment of major depression and PTSD all over the country. I'm on a wait list for one in my area right now.

[@Pssst.ByTheWay]

A one time dose may habe worked wonders, but i dont know if you had a clinical neurological chemical imbalance depression. I dont know if brain chemistry can be „one shot“ fixed like that. But im very pleased you feel better!

[@Skeptic78]

LMAO Joe goofing on Chills voice has been the best part of my day so far. 😂

[@BonJoviBeatlesLedZep]

BuRgER KiNg fOoT LeTtuCe

[@sharks3010]

I really like the idea of nicknaming booster rockets as 'boasters'. When it comes to displays of power, those things taking off is the ultimate display of boasting!

[@JohnnyWednesday]

Solid boosters work so well and are so powerful! and yet - we've never done a super heavy lift launcher with solids - seems like a robust way to throw something up there!

[@lengould9262]

Ultimate phalic symbol.

[@bigcity2085]

@@lengould9262 As in, " I've got booster and a pair of boasters, ready for launch"....like that ?

[@kcrose6761]

The second you mentioned the spooky pasta voice guy, I knew exactly who you're talking about and i 100% agree. I'm sure that's just his natural choice and cadence, but by the second thing he talks about in his top 10 videos, it's really grating. I laughed out loud a little too loud at the office when you imitated his voice. Love your show for years now. Keep being one of my favorite science educators!

[@dawsonallen9625]

I detected some science friction...

[@Strongbadathlon]

I think, in addition to the adjustments mentioned for Dragon, there would be extra heat shielding necessary, as there seems to be a lot of extra speed necessary to fly lunar missions, if Apollo is a reliable indicator.

[@timothyconover9805]

Reentering from a lunar transfer requires dissipating twice as much kinetic energy as from low Earth orbit. Yes, I'm sure it would require a heat shield upgrade.

[@PC-nf3no]

Jim Bridenstein was posed this same question and his answer was "No, Dragon could not"! He didn't go into great detail, but he did mention Dragons current heat shield not designed for reentry from lunar speeds.

[@grn1]

@@PC-nf3no Wouldn't it be possible to slow Dragon down to it's normal reentry speeds or would the extra fuel needed just not be worth it?

[@PC-nf3no]

@@grn1 The way Bridenstein answered the question...It wasn't like a hard no. He thought for a second and then said no. the way I interpreted that is that the answer is no, the way it is currently tested and configured. The super Draco escape motors are fully fueled. SpaceX once thought they would use the super Dracos to land the dragon on earth and on Mars. Musk said the amount of time and money to human rate the landing system on dragon was not feasible. So if the Dracos could be adapted for landing one has to believe they could use it to slow it down if it was so designed and tested. But as it stands right now, the answer is no. A better option might be a different heat shield lunar entry rated. there are also probably other systems that would have to be changed for lunar missions

[@dvdschaub]

I had a swimming pool in Tucson, where we lived for 19 years. In most parts of the US a pool is an extravagant accessory, but in Phoenix or Tucson they are almost a necessity if you want to be outdoors in the summer. It's just too damn hot to do anything else. I heard multiple times from multiple sources that an uncovered pool in Tucson loses about six feet of water (1.8 meters) per year in evaporation, which is actually less than a grassy lawn of similar size. We invested in floating pool covers a couple of times. These were nothing more than a durable, blue bubble wrap. Here are the pros and cons: Pros - I'm sure it reduced evaporation, but I do not know by how much. It also warmed up the pool significantly in the spring and fall, thus extending the season. Cons - It warmed up the pool too much in the summer (~5 months) , so we only used it at night and uncovered the pool during the day. The extra heat promoted bacterial growth on the sides of the pool, requiring extra cleaning and chemicals. It was a real hassle to cover and uncover the pool every day. (City pools have big rollers that make the process easier.) The floating covers only lasted about three years before they deteriorated under the brutal AZ sun, turning them into a big pile of micro-plastics. Because of the cons we used covers less than half of the time while living there. We loved the pool, though.

[@JB-1138]

That is some solid info, thanks.

[@quasarsavage]

I would not enjoy swimming in hot chemical water w micro plastics f that gotta get a salt water pool w cool water in the shade/inside lol

[@vordman]

Try as I might, I just can't fathom why anyone would want to live in a place that is so hot a swimming pool in a necessity. Sounds like hell to me. And the price of the air-con must be astronomic. A criminal waste of the planet's resources. People aren't meant to live in such places. Pull them down and return the land to dessert.

[@Andriastravels]

Give me a break, that is horseshit. And worse, 52 gave it a thumbs up. Its not too hot to go out shooting though, is it.

[@Wustenfuchs109]

One of the reasons it is so hot is because you people paved everything for your muscle cars and SUVs (and monster malls), so cities are one giant sponge for heat... which is a problem anywhere, but especially in desert environment. Living in the arid area is not a problem, if you approach it sensibly - just plant trees everywhere. If every house that has a pool planted a few dozen trees (that work good for that climate), you'd improve everyone's life and have a really nice place to live. But, hand it to an American to find the most expensive, most extravagant and selfish solution to a simple problem. "I want my pool!". The thing is, you are making a problem worse. Water will retain heat longer (it is a great reservoir for it), so even when it should be cooler (evenings and nights) it is not. Plus there is water availability problem. If you want to cool off, it is much cheaper and more efficient to cool a small room and get into it when it becomes too hot, than it is to build and maintain the entire pool of water. But that's just not extravagant enough for you. I mean, you folks worship a guy who's solution to traffic was to dig underground one-way tunnels for his premium cars. Public-fucking-transport, ever heard of it?! The most advanced nations in the world are built around it! If there is a problem in a society - always look at Americans to know how NOT to solve it. And it is not their fault - they are a fanatic consumerism culture - it does not exist if problems get solved. Plant the trees and solve a problem? Nah. Pay a company to build you a pool, buy filters, clean the pool, pay for the water, then pay for covers to keep that water from evaporating, then keep spending money on all that year after year to maintain all that... just so you could cool a bit. Jesus fucking Christ... People think AC spends a lot of energy? How much energy, directly and indirectly it takes to maintain a pool and its systems? The difference in the density and thermal capacity of the fluids in question should be an instant tell.

[@charlenasutherland]

I absolutely love Joe’s sense of humor. He has a well rounded grasp of current trends and can speak about just anything. If he is uncomfortable with his level of knowledge on something, he does research! Then he puts his own twist on things. Love this show!

[@martinparmer]

He researches, and if the only way to give a good answer is to get technical, he prepares us beforehand.

[@fwash0785]

He’s not funny

[@devanarayans5131]

Hear me out Joe, These lightning rounds are superb... Please keep giving them much importance.. they are perfect for for KZbin cz of how KZbin works...they can be much longer than the average output single topic average videos, and still not feel overwhelming cz it's about the many different topics and not just an overload of information like in a single topic video

[@Bassotronics]

@ 16:40 Joe must be talking about that channel that’s related to “Unexplained” things where “something massive” is always happening. One of the narrator’s talks ending the sentences in the same way. Not sure if he’s an A.I. or just a strange human.

[@Jonathanengr]

Joe--I'm a long time fan of your channel and its content. Keep up the great work! You did a good job with the swimming pool calculations, and since it's right down my line of work I thought I'd add a couple of notes. I'm a licensed professional civil engineer, and hydrology is one of the main focuses of my practice. To make a long story short, pan evaporation data would be the thing to use to calculate the water loss from swimming pools. There are (typically!) no plants causing water loss from transpiration, and since the pool is lined (vinyl or shotcrete) you can assume the water loss due to absorption to be zero. All you care about is evaporation due to the temperatures (ambient air and water in the pool), humidity, sun exposure and wind. That's exactly what pan evaporation data will tell you. I live in North Carolina and am not familiar with data from Arizona, but a quick search for pan evaporation data led me to a study completed by the NOAA in 1982 for Mesa, AZ, and at the time it shows that June yielded the highest loss at 12.16 inches for that month. Thus, that's an average of (12.16/30) 0.41 inches per day for the month of June. This varies every month, with December resulting in only 2.74 inches of loss in water depth (0.09 inches/day). Thus, I think your assumption of 0.25 inches is certainly reasonable during the swimming season. One last thing. Acre-feet is a term we use often, and there is no need to include "squared" in the term. An acre is 43,560 square feet, and when you multiply that area by the depth you have a value for volume (feet cubed). So the term is simply acre-feet.

[@Werdna12345]

3:30 it is an absurd unit but handy when you are dealing with larger bodies of water (lakes, natural ponds and man made settling ponds)

[@NosirrathOfficial]

But is it significantly more useful than cubic metres? Feel like acre-feet is just needlessly convoluted

[@whyiseverysinglehandletaken2]

@@NosirrathOfficial Americans are just stubborn

[@squeaksquawk4255]

I prefer kiloletres (1,000 litres), cubic metres or, when measuring huge stuff, cubic kilometres.

[@agsystems8220]

@@NosirrathOfficial Surveyors are experienced in measuring in acres, and a guy in a boat with a stick (or however you are measuring depth) is likely to be working in feet. For most bodies of water the area they cover is significantly larger than the depth, so the best unit for each is unlikely to be the same. Having a unit that is reached by multiplying the measurements together without any constants (even powers of 10) has value in being less likely to pick up a stupid error. Consider the confusion around kilometre squared and kilo metre squared (1km^2 vs 1000 *1m^2), and the fact that the normal metric map area is the hectare, which is 10000m^2. It is very easy to get the number of zeros wrong somewhere. Even here (UK) I would consider writing 'hectare metres', if I was estimating from a map. If the question is "how much water is in the reservoir" it is a very natural unit, avoiding the convolution of converting to something just because it is more 'normal'.

[@walli6388]

Nah, just use cubic metres

[@wilburjunior9949]

You see, I was waiting for Tim and Scott to come back and say " You see ....YES!" 🤣

[@garstevens835]

I literally burst out laughing when you did the “IM AN ASSHOLE “ DANCE. Wow!

[@oxcart4172]

Thanks

[@swapshots4427]

Joe is definitely easily listenable and endearing. Keep on educating and entertaining us Joe.

[@kevinmcdonnell1193]

I haate that fuukin guuy!

[@kevinmcdonnell1193]

Great show tho!

[@Weissenhammer]

I knew the short “yes” was coming from Tim and Scott, still laughed!

[@KirkIsmay]

I suspect that if NASA went to SpaceX and said we need a lunar Dragon ASAP, here's a bunch of money, SpaceX would say yes.

[@walli6388]

And then they would push the deadline back to infinity

[@junrosamura645]

@@walli6388 That would be Boeing right?

[@Tinil0]

Thank god they don't.

[@rogerstarkey5390]

@@walli6388 And your other post labels you very nicely.....

[@walli6388]

@@rogerstarkey5390 Aha

[@chriskaprys]

Thank you for being both creative and a communicator. The peeves you mention help highlight what’s so engaging about your content: you want to enjoy the finished product, and that takes a certain amount of effort and creativity that someone simply wouldn’t do once they’ve learned to lean on a (proverbial) crutch. 👍

[@martinparmer]

Interesting that you talked about the science communicator question. I think you do a great job with this and it's a huge reason why your channel is doing so well. At times your content has no choice but to get technical (even beyond reasonable attempts to explain) BUT, you always point it out (acknowledge it). Kind of helps us get ready to think hard I guess, LOL! Best of luck, Joe.

[@jreelite7149]

As a part time guider, I really appreciate hearing your story, so many people don’t have the prima official Psilocin strategy guide and can easily hurt their young brains. Very impressed with the maturity you showed in that story.

[@deansmits006]

Joe, you mention speaking cadence as a pet peeve, and I get it. It takes a lot of practice and knowledge about speaking to be a good orator. I know people in even regular conversation, have a boring cadence. Hell, even I do. So what you do to make your exposition more "natural", and varied, is actually a big reason why I subscribe. Not the BIGGEST, but it colors the conversation nicely

[@CartoonHero1986]

The Psilocybin answer was spot on Joe. I found that it really does help "break down mental barriers" if you have a positive experience, but make sure you are doing it in a safe environment and have an anchor that isn't on a trip there in case the trip goes bad for you, and wait until you're older to try something like this.

[@scrappydoo7887]

Agreed. I have deeper experience than I would tend to admit in psychedelics be it chemical or natural and 100% the most important things are to have a "sitter" and make sure you are secure mentally, do not them if you are depressed or seriously anxious because it will make it worse and don't do them too young. 👍

[@ericwiese7479]

Someday I’ll try the fungal experience.

[@aminrobinson2052]

Psilocybin everytime I hear people say things about taking it they always feel like they have a revelation. Then afterward they sort of overcome something deep even if their experience with it is bad they always have the same aftermath.(like something was accomplished)

[@ericwiese7479]

@@aminrobinson2052 yep! I hear the same

[@SonofTheMorningStar666]

@@aminrobinson2052 That has been my experience. It has helped me in ways antidepressants never could.

[@metroynome]

Hey Joe, I just want to say thank you for your videos. I realized you are the only person I watch who covers space stuff, and I got into your videos due to the other videos you do, such as some of the natural disasters, or history videos. Such great videos. I will always keep watching. You have great humor, and great information and knowledge.

[@marika147]

Check out Cool Worlds Lab and Dr Becky Smethurst, they're both great science communicators AND cover all of the space things 😁

[@CivilEngineerWroxton]

You need to also watch Anton Petrov. His videos are EXCELLENT and he goes MUCH into the topic of everything space and astronomy. He makes a video pretty much every day and it is always about very current things. Watching him and Joe will slake that heavy thirst for all things space and astronomy. 😊

[@johnlcallaway]

I used to live in Phoenix. I was using 12k gallons of water a month when I first moved there, and had both a pool and hot tub. One day I got tired of trimming hedges and mowing and went xeriscape. Turned all the irrigation off except for my orange and grapefruit tree. Eventually, I turned those off when the orange tree died and I realized didn't really like grapefruit all that much My average monthly usage dropped to 3.5k gallons per month. And all of the scorpions and crickets and ants I was paying a pest control company to kill went away. I guess because there wasn't any water around anymore. So I also saved money and stopped spraying poisons. And no more mowing. The only trimming I had to do was the prickly pears once a year I don't think pools are the problem ... One way to address the water crisis is to ban residential irrigation and charge up the wazoo for professional irrigation for landscaping purposes. Did you know many of those palm trees that line the Scottsdale streets have their own sprinklers? Btw .. we moved to Florida and our average water issue is around 3.2k gallons per month. Assuming similar water usage, that suggests 300 gallons per month was used by our pool, or around 1%. Which suggests your calculations are pretty close Thanks for another interesting video.

[@adlockhungry304]

I can vouch for the Henson razor. It works exceptionally well. The real brilliance of it is that it does so with standard, safety razor blades, that end up costing about $0.10 each (which is why I converted to safety razors a while ago). No gimmicky, special, proprietary blades to sink your money into. No superfluous plastic, or superfluous material of any kind. Just plain, steel blades that are recycled easily. Even if the blades end up in the landfill, it’s just steel. It works way better than any of those horsesheiza disposable 3-5 blade heads. I can even skip a few days and shave without the need for using the electric trimmer first. Simplify.

[@BobFitchKSP]

His description of how other youtubers sometimes have odd vocal cadence was half as interesting as it could have been.

[@MarcoTedaldi]

I couldn't exactly pinpoint it but your hint made the search half as interesting.

[@Rattus-Norvegicus]

There once was a man named Kyle. Kyle lived in a valley. Kyle hated this so much that he started climbing and climbing until he found the highest spot he could find, and promptly died right on that spot. So everyone else forever named it Kyle Hill...

[@BMCKTN]

Chills!

[@TheRidiculousRescue]

@@BMCKTN Chills was the easiest to spot in his lineup of creators that drive him nuts 😆

[@somerandompersonidk2272]

Project Ares episode 20 when?

[@davidmende3409]

the intro - everything i love about joe, summed up in a few seconds

[@elck3]

it's actually everything i dislike -- everything else he does is awesome, it's the really strange hugely drawn out awkward pauses that really take me out of the video. Normal pauses and awkward statements is part of his brand, but when he stops talking for > 15 seconds you're very confused, especially if you tend to listen to his shows, like me. Anyways, _just my opinion_ you're allowed to disagree

[@altosack]

What bothered me about it is I’m pretty sure it was all scripted, including the timing of the “awkward” pauses. While his research and science is pretty good, it’s impossible for me to forget he started out in film/video, and _nothing_ he does is not intentional (that’s mostly a good thing). Oh, yeah, there’s also the “love you guys” at the end. I do believe he is sincere about his appreciation for his audience and how it has allowed him to change his lifestyle, but no, he doesn’t love us guys and his grammar is too good for him not to know what’s insincere about those words; he does/keeps it for the homey touch he thinks it adds. Joe, I love ya (touché!); this is sincere feedback.

[@davidmende3409]

@@altosack and - what would be the problem of it being scripted? I do think it was, its a skit, so? and the rest, bro.. i think your getting a bit to serious about it

[@AndresLaszloJr]

Hi Joe, great channel. A topic suggestion: "What has happened to the looted Egyptian tombs?" What is left to be found? What has been melted down? What is with museums? What is with collectors? What has been destroyed?

[@Skaftrippers013]

I’d love this

[@KriLL325783]

Pretty sure most of that isn't known, a lot of the looting happened a very long time ago.

[@hownottogame8423]

Yes

[@jamesporter628]

Good question

[@BEdwardStover]

That is a great thing about video. I stop, backup, review. If I do not understand the words being said, turn on the captions (sometimes it is a person's accent that require this). Then I open additional tabs and look up the terms. Frankly I enjoy doing that, as I learn so much that way. Reminds me of being in college and working on research papers. Only I do not need to cite my sources. Professors loved my papers. If I found something interesting, obscure or funny, it made it into my paper even if it was off track. I enjoyed it, and virtually always they enjoyed it. I even had professors tell me that so many times it feels like they are reading the same paper over and over, but I always find something that no one else found and even come to some original conclusions.

[@Storm.Vortex]

(16:14) very much so for me. This is in part why I became such a big fan or this channel and many others like it because I feel like an actual human being is speaking to me, not just a robot. I feel like once you've seen enough science-tube, you kinda just hear the video and immediately know whether you'll watch it in full or not.

[@dwightk.schrute8696]

can we get an entire episode where Joe speaks like Chills?

[@hapyharyhard0n581]

Joe, you do have the BEST speech cadence on youtube. just fyi. ...good job.

[@Mrcrowntown]

I think the dragon capsule(red or gray) could be an incredibly useful ferry from lunar surface to lunar orbit! Even a service module attached below it to increase payload and propellant mass would be doable IMO.

[@StevenBanks123]

That portion of the video 20:00 where Tim and Scott weigh in with their detailed explanation of a Dragon Capsule around the moon? Wonderful.

[@PaddyMcMe]

I'm an Aussie in Sydney on the East Coast and the Eastern Side of Australia suffers from constant water restrictions in the Summer but about once a decade we experience full on droughts due to the 'El Nino (Warming & Dry) / La Nina (Wet and Cooler)' effects that last for months and change regularly but further inland we can have up to 6-7 year droughts that decimate our farming industry. Back in 2011 it got so bad that we were seriously worried about running out of water in the cities and as such the harshest water restrictions we've ever seen were implemented with accompanying 'suggestions' for ways to cut down on water usage. So all public fountains & Water Features were turned off, public pools weren't permitted to refill their pools, you weren't allowed to water your lawn, you could use 1 bucket of water to wash your car per fortnight, they suggested we limit ourselves to a single 2 minute shower and to install Low-Flow Shower Heads and Taps, Baths were a no go, to put bricks in the toilet basin to use less water when flushing, to not flush as much so 'It's it's yellow let it mellow, if it's brown flush it down' type thinking which people actually did. They even ran a campaign encouraging you to point out anybody breaking Water Restrictions and to report them and if proof could be shown then that person would be fined by the cops. It was crazy. In Sydney which is a coastal city we started building De-Salination Plants so we could drink the Sea Water and when completed we were shifted over to them. Some were made inland to access rivers, storm water, even sewage 'grey waste' water that people were so reluctant to drink they had to get the NSW Premier in on TV to be shown drinking the water.... Then a Queensland friend of mine told me about how ridiculous it was because Public usage of water supplies is not even a tenth of what Private Industry uses! Turns out Water has been commoditised here in Australia and it went to the highest bidder and that was our Mining & Agriculture industry. The reason all our Basins and reserves had run dry is because we had sold the water off. To give you an idea in 2010 when the drought was at it's worst the Cotton & Rice industry had diverted 1000 Gigalitres of water they had bought which was worth about 2% of our year Agricultural Trade. That amount of water would've kept Sydney, so they could sell a crop that was worth $650m. Had that water been allowed to flow into the Reservoirs, Dams and Basins that the 5.3 million Sydney inhabitants use that would've give us PLENTIFUL water with no restrictions at all for 2 years. With even mild restrictions it would've been 3 years. All this 'saving water' stuff over here is a joke. Thankfully for those of us in Sydney we've spent SO much money on De-Salination Plants we'll be fine going forward no matter what really but we absolutely need government policy reform rather than spending money on running campaigns to get us to use less water they should be spent ensuring that the citizens, not the businesses, get the water they need.

[@jonnies]

People, please DO NOT listen to this guy ^ He's not from Sydney. He's actually a hipster from inner city Melbourne.

[@likebot.]

One of the testimonials in your advert for Henson Shaving had a line that jolted me "Never going back to _regular_ razors." Although I used plastic razors then electric shavers all my life, I've always considered these single replaceable blade shavers the _regular_ shaver and everything else the gimmic.

[@likebot.]

@pιnned вy Joe Scott All hail Zoe

[@davidanderson_surrey_bc]

From the time I started shaving (around 16 or so) to age 19, I used a standard shaver similar to the Henson style. Lots of nicks and cuts I must say. Then a young lady friend of mine gave me a Ladies Trac II shaver. I've been using it ever since and I'm now almost 66 -- so, 47 years. And no problems with it whatsoever.

[@bradbole6853]

I want Joe to narrative my life .and use tangent cam for every decision I made when alcohol was involved

[@MORTY_612]

I just love joe going to those rabbits hole. He makes every subject thought-provoking

[@dawsonallen9625]

@pιnned вy Joe Scott just love Joe goes down the rabbit, whole...

[@UncySpam]

I live in Brisbane, Australia. Our climate is not as hot as Phoenix. We have a cover on our pool, and we almost never have to add water as the cover stops evaporation. It also massively reduces the amount of chemicals we need to use in the pool. We are in a wildlife conversation area and the cover also helps to ensure that any wildlife that gets into the pool can get back out. Lastly, it increases how long we can swim as the cover also heats the pool (with no energy input). So yes, covering your pool is absolutely worth it. I calculated that we recovered the cost of the cover in two years.

[@ShaynaLynn]

57. I haven't tripped in 30yrs and I did an 1/8 of psilocybin cubensis menace shrooms back in Novemeber. At the time I was having an average of 5 severe panic attacks a wk. I immediately went from 5 a wk to only 5 in 6 months. Whatever it is the trip does, it works.

[@danielbarreiro8228]

A detail you didn't mention in the section about adapting the Crew Dragon to reach the Moon is the atmospheric reentry on the way back. The speed of reentry for a capsule falling from orbit or coming from the Moon is quite different, and you have to either slow down to orbital speed before attempting to re-enter the atmosphere or redesign the capsule with a much thicker shield and a lot of reinforcement to sustain the effort, both mechanical and thermal.

[@Bryan-Hensley]

In my comment I mentioned three falcon launches, one falcon 9 and 2 heavy. A propulsion module or refuel the upper stage, if it can do the job. A crew cabin to attach to the hatch. And I'd want a backup engine and tanks on the crew cabin. If everything goes well, this fuel and backup engine could slow down the return trip. If things don't go well then it would take a rescue mission, if that's possible. I haven't thought about what it would take to chase down the capsule for a refuel. That might need to be preplanned and be in the right position. Which would take a 4th falcon heavy launch, of course it would have to be first if that scenario would play out. If I was that rich and paying for it, I would play at that safe. Besides that would be one hell of a show for the public.

[@moozooh]

@@Bryan-Hensley Refueling isn't the main problem; the main problem is nobody wants to do propulsive landing with a capsule. Crew Dragon was originally designed to land propulsively using SuperDraco thrusters, but it would've taken a lot more time, effort, and resources to qualify that capability for safety, as per NASA and Musk's own words. There's just no point investing all of this in a dead-end design when they can just finish Starship instead and have a much more elegant, safe, future-proof solution for interplanetary travel.

[@vwarbase277]

I believe they can do it with just a thicker heat shield. They would definitely test it before they put humans onboard.

[@Bryan-Hensley]

@@moozooh who's talking about landing?

[@yukonbikerguy]

Your style of humor always makes me laugh, Thanks Joe!

[@speadskater]

On the pool topic. I'm more concerned about chlorine usage for that many pools than evaporation

[@teacuptoe2143]

16:12 My elderly boss (restaurant) let us listen to documentaries, podcasts, (& long youtube videos) over the speaker on days we were closed, prepping food and baking bread. She loved them. She COULD NOT STAND Simon Whistler for some reason 😂 Any time she would ask "today can we listen to a podcast on X" ? I would bring it up on my phone and let her scroll, the first result was ALWAYS Simon 😂😂😂

[@Megadextrious]

Ohhh oh I have a psilocybin story that might apply to the question asked!! Ok, so all my life I’ve been extremely shy, like to the point of social anxiety, legit panic attacks and all that goes with it. When I was 17, my sister, my best friend (who became my bf years later), and I ate some of these chocolates that had “a gram of shrooms” as they would say. My experience was amazing, at one point after the peak was wearing down, I had this introspection: I don’t know how to talk to people. Plain and simple. I just have a really hard time trying to communicate. It was always like, the thoughts in my head travel down to come out of my mouth, but there’s a wall that they just bump into and can’t find their way out….. So my friend, who is extremely social and can make friends with anybody, talked me through the whole thing. So I started using the techniques and tips on how to interact with people and it actually really helped me. It was amazing. 15 years later and I’ve been diagnosed with autism. Go figure, right?!

[@senzgounden6676]

I'm liking the comedy skits. Nice work. I'm assuming you have more time to play around with them during the lightning round video, which is awesome👏🙌

[@adadsguideto3229]

While I know you did maths, it might be easier to know that regardless of the water surface area, an easy way to quantify the evaporation rate in the desert is 6-9ft per year is lost to evaporation. To think about it, if you have a 1 inch square of water that is 100’ deep it would lose 6-9 ft of that depth in one year. Now imagine the saltonsea in so cal. With wave action you will likely lose 9’ of water across the entire surface of the sea. The only reason it doesn’t fully disappear is that it is fed by run off the equals the evaporation rate. You might find it interesting to know that there is a train, town and a Spanish galleon at the bottom of the Salton sea. The galleon involves pissing off the native Americans and chasing down a the Spanish sailors. All is documented, both by the Spanish and at local historians, there are even photos.

[@wolf1066]

Some awesome humour in this episode, especially with the expert guest spot. Awesome seeing you tackling controversial topics that could cause you to get your video demonitised - e.g. that bit about pineapple on pizza. Brave man!

[@dawsonallen9625]

Yes, pineapple belongs on pizza...

[@grn1]

@@dawsonallen9625 I'm not judging you (but I'm judging you).

[@davidmizak4642]

Thanks for sharing such wonderful content with your audience. It is very interesting stuff. I appreciate all the work put into it. Many thanks!

[@theshermano3000]

I live in a Phoenix suburb. Our pool is approximately 400 sq ft in surface area and we have a small lawn in the front. Family of 4 people. We used 17K gallons of water this month ending May 25th. Our highest month is July which is about 20K gallons. We don't have a cover because it's a pain in the ass to maintain and take on and off for usage in summer months as well as weekly pool maintenance... etc. When water prices are so low, it's simply not worth the effort. Which I guess begs the question... why aren't our water prices higher? I paid $26 for that 17K gallons used this month. So until we start getting charged for the actual value of water here in the Southwest, people simply won't care enough to make the changes that might be necessary as our water situation gets more dire.

[@CombatGod]

Drugs like mushrooms open you up to new thoughts and ideas and give you an almost 3rd person perspective of your life. That being said, having this experience guided by somebody knowledgeable and trusting you can get some amazing benefits. This is also an experience that can last hours and if it goes badly it can become something horrifying from which you can't escape from. Being alone or surrounded by people you don't trust can seriously end badly and have long term effects. Be safe guys.

[@uptown3636]

Joe: This is a lightning round. Also Joe: Here's a 4 minute answer about pools in the Phoenix area. That's some slow-@$$ lightning.

[@igkslife]

I think I have seen the spooky channel you are talking about. I like some of the content they make.

[@sig5816]

Chillz?

[@johngott8224]

(On the topic of delivery/cadence) while I really appreciate the informal style of much of KZbin, it has its place and I’m always impressed with old mid century training reels and how well they teach.

[@Squintz45]

Dude, this razor is great. Probably the only thing I have bought after hearing an ad from a YT Creator. You did put all the words in the right order and I am glad you did =)

[@toonvanderpas7604]

Regarding the Lunar Crew Dragon... As far as I know, one big problem lies in the fuel of the upper stage of the Falcon Heavy rocket, which happens to be RP1 (refined kerosine). RP1 isn't suitable for long space flights. The Apollo service module used UDMH and nitrogen tetroxide for this pupose, so called 'storable propellants'.

[@jaychip1]

The Falcon nine upper stage is not analogous to the Apollo Service Module. The Dragon "Trunk" is, and uses hypergolic propellants just like Apollo. So, no, your problem doesn't exist.

[@zapfanzapfan]

The trunk section has no propellants at all, only the capsule does, soo, no way to get in and out of lunar orbit without a completely new trunk section that has propulsion.

[@jaychip1]

@@zapfanzapfan yes. Lunar Dragon would need a propulsion system added to the trunk. But my comment was about the fact that the Falcon 9 second stage was RP1 meant nothing. The problematic things about Dragon would be the heat shield at Lunar return velocities, and life support including radiation shielding.

[@toonvanderpas7604]

@@jaychip1 Yeah, the Dragon trunk has no main propulsion system for TLI and TEI (trans lunar injection and trans earth injection). So based on what we have, I concluded that we need the second stage for that. I don't know whether this provides enough delta-V, but it's your only chance. Otherwise you're forced to design a whole new solution, and that would go way outside the scope of the original question.

[@zapfanzapfan]

@@jaychip1 Didn't they design the heat shield with lunar or even martian return in mind? They were going to send two people around the Moon in some early space tourist project.

[@the0real0mclovin]

U along with physicsgirl are excellent science communicators, have u 2 ever collaborated on anything? That would make a great video I'm sure

[@StellarAudyssey]

Physics girl is hopeless at conveying complex concepts to lay people. Joe is infinitely better.

[@KimoKimochii]

evaporation rate also depends on the surface area of the water to air contact, the actual volume of water is irrelevant

[@ceb1970]

Which is why he only determined the surface area and not the volume...

[@thehermitman822]

Would shallowness factor?

[@ceb1970]

@@thehermitman822 No

[@Warp10x]

@@ceb1970 Why? That would determine the temperature gradient?

[@thehermitman822]

@@ceb1970 no boiling effect?

[@elrhyesseyhrle8958]

16:58 We have an ongoing joke in my fam using THAT voice. My youngest does it perfect, if something insanely mundane is going on she narrates it. "Waiting in line at the Starbucks...for 15 mins. Who would have thought... 1 drip coffee would take so long. But when you must have coffee..you are willing to do the unthinkable." She will come out of nowhere and do that voice as a tension breaker.

[@jameshoiby]

I used to live just outside of Phoenix, and we absolutely used a pool cover most of the year. Ironically, pools can be cold in Arizona because of the low humidity, and the pool cover made a huge difference in the number of months of the year we could use the pool without turning on the solar heat.

[@davidnelson2204]

As a scientist, I really appreciate the guest input on this video lol.

[@ProjectDarkWolf]

I haven't laughed this hard in weeks, thank you Joe! I mean, I only laughed for about four seconds in total but I really don't have much sense of humor. (That actually makes life pretty depressing a lot of the time, except for moments like this) May you bring us informative and enjoyable content for many years to come.

[@BrandonCase]

How low would gravity have to be for humans to have a terminal velocity that’d allow us to survive a fall from any height (assuming earth’s atmosphere). And are there any actual celestial bodies that would actually allow for this?

[@m1abrams1776]

Humans could fly on Titan with a wing suit

[@electricsnut]

Thank you Joe for talking about Psilocybin… It has changed my life (it ain’t an easy ride though) and it is nice to hear it talked about 👍

[@jareddurer3743]

I just ordered some of those razors with that code you provided. Thanks for what you do Joe!

[@StevePlegge]

Acre^2? Acre is already an area measure.

[@payasofeo69]

and square is a volume...

[@Urroner]

You and Sabine Hossenfelder, great humor, and with 40+ years with NASA, I absolutely agree with every word your two guests said.

[@AbuctingTacos]

I love that you point out the biases of sources and yourself. Not only recognizing it but using it to your advantage in some cases. We all need to do this Also I'm glad double edge safety razors are back in style. So much cheaper and almost as clean as a straight razor

[@giuliani3570]

I grew up with a pool here in Michigan. We always had a solar cover as we did not have a heated pool. Made the top half hot, then freezing under it.

[@jaygh8857]

16:58 definitely the PBS Space Time dude lmao 🤣

[@RogerM88]

For a reason many brilliant Engineers at NASA, went with the modular route in the Apollo missions. SpaceX should stayed with the Red Dragon lander. Starship doesn't has as much safety redundancy, and the dispenser system, means it will probably be mostly used for Starlink.

[@idiotburns]

Starliner

[@wojciech649]

It doesn't make sense. Any of these landers can't help build a proper base. You can send a few missions but in long term this is too expensive and won't provide profitable results, that means such a project would die just like Apollo did

[@JohnBlackburn1975]

Starship should be able to take a lot of tonnage to the moon and even act as a moonbase all by itself. Whether it will ever be human rated I don't know. It lands on earth with a bellyflop manoeuvre to land propulsively on its tail. NASA seems to prefer parachutes like with Apollo.

[@NoneyoBisniss]

@RogerM If you're watching this genre a videos, surely you're aware of the notion of iterative design and spacex's approach to Starship. Aside from the specific publicly available contract awards, it would be a safe bet that NASA isn't spending its money so that SpaceX can just launch communication satellites.

[@silvagamer9443]

Man, the dispenser system is only temporary, they need to launch starlink v2 asap and the dispenser i think is fast to design, i think they will not lose the volume potential of cargo starship can transport.

[@davevann9795]

For sending Crew Dragon to the moon, or using it for a mission to the moon, the KZbin channel "Apogee" has several excellent videos that examine this idea through engineering, financial, scheduling, and political viewpoints.

[@Deady4u]

Pineapple on pizza is honestly not that bad. The sweetness and acidity helps to balance out the saltiness and greasyness

[@bigwangmark]

I recently started using a safety razor and its better than I thought it would be. Nice as well not clogging up between the blades on the multi blade shavers. And like you said so much less waste.

[@IxxieNyx]

Dang, a sponsor ad finally got me, I want to get those razors for me & the husband lol Definitely going to check them out. Also, it was interesting to hear some personal opinions from you when it comes to psilocybin, I’ve never tried it but I definitely agree with you with everything you said. It can be super beneficial but definitely gotta do it properly & carefully. Love your channel, keep up the good work!

[@VegaHawk769]

Pineapple on Pizza? Has never been the same as the first time. Decades ago before it(pineapple) was a thing, my family went out to eat pizza. We got to choose a topping each. I noticed pineapple on the list so I decided to try it, we ended up with a beef, mushroom, pineapple, & shrimp Pizza. That is the only time that the pineapple was served cooler than the pizza. And I think that's what made it taste so good for me

[@bazoo513]

4:45 - 1% ? Yes, it _is_ a big deal, considering that we try to minimize the size of toilet flushing tanks. But, it is just a part of a bigger picture - you Yanks waste _everything_

[@davidmacphee8348]

He has to flush it 15 times !

[@davidmacphee8348]

SpaceX plans to design and build a desalinization plant I understand for the rockets. I hope they come up with great ideas on how to get the costs way down and discover new technologies. Clean water from the sea would be very helpful world wide. That might lead to spin off technologies that covert that water to fuels. It all takes lots of electricity, right?

[@bazoo513]

@@davidmacphee8348 :o)

[@bazoo513]

@@davidmacphee8348 I think they gave up on that recently (I probebly saw it on WAI or Marcus House), but if they do build one, my bet is still on reverse osmosis.

[@davidmacphee8348]

@@bazoo513 All the most qualified people are attracted to SpaceX. Development at Boca Chica is iffy with the politics down there. Interesting what the best engineers and designers could think of these ideas. Eureka moments. Ever wake up with a life changing idea?

[@Orgrune]

The "You see..." Issue is similar to a thing I've been discussing very often the last year. The obliviousness of obviousness. People tend to think that obvious things are obvious to everyone, they're not. I usually do a Segway to my job. As a traindriver there's a big focus on safety. So all drivers have a pretty firm grasp of the safety rules. I'd say most drivers know 90% of their job as 'obvious', the problem is it's never the same 90%.

[@justin.d.whitehead]

8:16 made me actually laugh out loud. Needed that today, Joe. Thanks.

[@ryanmichaelhaley]

I've been using a safety razor for years. I absolutely love the thing.

[@TheGreg6466]

16:35 'practical engineering' does that weird speech thing, then he's talking about 'chills' with the droning voice

[@jbrubin8274]

I know it’s not a huge deal but thanks for putting my name on the list, proud new Patreon member. Thrilled to support someone who loves science and sharing what makes it so dang interesting too. On a personal note- I know that was a tricky subject matter & I can’t thank you enough for mentioning that for some, under proper care, this can save lives.🙏

[@kukulroukul4698]

who ?

[@brubrusuryoutube]

im so glad you were open minded to mushrooms,. and im so glad they helped you... im studying to be a psychologist and plan to really study this treatment possibility

[@thedoctor755]

Your mushroom story immediately took me back to the late great Bill Hicks' bit about psychedelic experiences. "I don't know about you, but I had a killer time on drugs. Never hurt anyone, never beat anyone, never lost a job.... laughed my ass off, and went about my day." I too have had good experiences... probably at least about 20 or so times more than you Joe, but you'll have that :)

[@freezeyjn]

In the phoenix area, we depend on evaporation to keep the pool temperature at a usable level. In the larger, public pools not only do they never use pool covers, they turn on some pumps every couple of days to throw water in the air and back into the pool so that the extra evaporation can cool the water down to around 80 or 85 degrees. A covered pool in the Phoenix area would easily sit at 105 degrees throughout the summer.

[@darktower74]

Psilocybin is a fantastic experience. Of course, like most mind-altering substances, surround yourself in a good environment. It's akin to eating before you drink. Don't go to a nightclub on mushrooms and whatever you do, don't drop change on the dancefloor and try to pick it up. It's terrifying.

[@jacoL8]

the fact that I know exactly who you're talking about regarding the spooky pasta guy lol

[@everythingis2495]

Psychedelics, to me? The single most fascinating subject of inquiry we have. I had an acquaintance tell me their experience with some hyper-dimensional/humanoid figures holding long pendant-style triangular flags. Every detail of the entities themselves as well as the flags was 100% exact to an experience I had a few months before she told me.. I never told anyone my experience. There is a lot of variables to line up. Description of entities, qty of entities, ( Dozens to hundred+) , holding flags, the shape of flag. Etc. All lined up. Exact. How?! Odds of that being random chance are impossible in my opinion. Without a doubt in my mind, there is something going on. Something much bigger than just us. What it is? I have no idea, but I am sure as hell intrigued by whatever it is. It's like unbeknownst to us, we may exist on some electromagnetic spectrum of sorts. Tuned to a frequency (reality) like a radio and these substances thrown across the synapses spins that proverbial dial and more becomes privy to our awareness. Sure, some could be just our mind creating pictures but I am convinced that there is something else. This is a conclusion I am currently at over 25 years of extracting whatever data I can extract from these experiences. Its absolutely deserving of our scientific inquiry. Its stupid not to.

[@mugwump7049]

Joe, I told you before and I'll say it again: I love your sense of humor. This non-intro floored me! The awkward embarrassed pauses were just chef's kiss 👌 Also, did you purposefully match the colors of your T-shirt and mug?

[@danmallery9142]

Speaking as a resident of Phoenix, the problem with pool covers here is it raises the temperature of the water to an uncomfortable level. I used to live in Tucson (which is an average of about 5 degrees cooler in the summer than Phoenix) and had a pool cover on our pool. The top foot of water temperature would get above 103 degrees! Not exactly refreshing. I don't currently have a pool at my house in Phoenix but if I did, I would use the cover year round but take it off July-September because the water temp would be too high. Covering it the rest of the year extends the swim season and would still save evaporation since even our winter temps can be in the 70s. In addition, covers not only save evaporation, they greatly reduce chemical usage (especially chlorine.)