Why NASA’s New 3D Printed Rocket Engine Matters

[@UndecidedMF]

What do you think of additive manufacturing? Any other exciting applications? The first 100 people to use code UNDECIDED at the link below will get 60% off of Incogni: incogni.com/undecided. If you liked this, check out Why is this Propeller Getting So Much Attention? kzbin.info/www/bejne/i6u8eYJqqdCmisU

[@2MANYWWWWWWWWWWWWS4U]

It's so awesome how you dub in Casey Kasem's voice over yours. well done! 🤗

[@chasingsomething3735]

I have 4 3d printers, 3 FDM and one Resin and I am obsessed with the technology and how it makes nearly any other creative pursuit better. I'd happily live in a printed house on the moon and commute in a printed rocket if I could - quick question, what are the earbuds you are using in the interview sections

[@damienbenz]

I am actively researching plastic and metal additive manufacturing, i have ~5 solid years experience with 3d printing thermoplastics and carbon fibre enhanced thermoplastics. The tech i'm exploring is metal particles in special support materials ( green to finite parts ) that can be "cured" in ( sintering ) special induction ovens.

[@icebearfu4284]

@Matt In your talk with the NASA engineer, was any mention made to include additive manufacturing in the next steps for Nuclear engines? The option to remove oxygen as a catalyser and use (potentially) thorium as the fuel agent for lighter, more reactive engines. www.nasa.gov/mission_pages/tdm/nuclear-thermal-propulsion/index.html

[@Олексій-г1в]

3d printing is potentially only way to make stuff in space. If you on a starship and your engine die - taking ship back to earth on repair is not always option. But with some orbital manofactorums that able to make spare parts in zero gravity - we need those.

[@Crazt]

3D printing has an opportunity to replace complex casted parts. The issue is things like aluminum are still tough to get right.

[@The_Foolish_Fool]

in volume no, but complexity yes. Cast parts can be made at a volume much exceeding 3d printing. however the complexity of the parts 3d printing wins and allows much more complexity than regular cast. They both have their drawbacks, and 3d printing is just very slow in everything but large complex parts, or prototyping.

[@markhaus]

It’s the complex and often impossible to cast, form, forge, roll geometries that 3d printing will replace. There really is no alternative for these geometries. These thrusters have incredibly nuanced small but many channels to flow cooling and shape thrust in ways that just isn’t possible without 3d printing. 3D printing has revolutionized manufacturing. But for your ordinary things, not so much unless you’re printing themselves

[@SP-dw9gi]

I am a noob here, what are the issues with aluminum? I'm genuinely asking.

[@Vectorized_mind]

issues!?😂😂, what are you talking about, the Trueprint 2000/3000 can print out aluminum easy.

[@steven2183]

3D printed casting molds are just another facet to how the technology is evolving...it's fascinating to watch but it also makes me wonder why now? this stuff existed back in the 80s and 90s...just like drones, we've had drones for quite a long time but are only now seeing them become more ubiquitous...

[@Icephoenix84]

I love how excited Paul was to talk about the developments. He looked like a kid telling you about his favorite type of candy. It was very wholesome.

[@UndecidedMF]

He was awesome to talk to. His excitement about what he does was infectious.

[@FLPhotoCatcher]

@@UndecidedMF Great video, thanks. I know that it has nothing to do with you, but that info about the UN wanting to make the internet a 'human right' is kind of crazy. TV would rightly not be categorized as a human right, and the internet is used mostly for entertainment. But unlike TV, the trappings of the internet include 'social' media, which makes people's lives worse, not better.

[@lipsterman1]

I worked on NASA programs that had the first additive manufacturing components. The first item was a blanking plate (very simple). By the time I left, They were getting more and more complex. 4 years later, they are really more complex.

[@apIthletIcc]

Well your welcome my dude, I was the random dude that sent in the concept drawings and engineering breakdown for the prototype. I'm so happy to see I was right about damn near everything on those 3 drawings and 2 pages of explainer text lol The cooling channels especially are the one thing I loved most hearing actually work in real life. I was going off of on paper calculations of Hydrogen's characteristics under vacuum and high pressure to resolve any doubts I had so luckily you guys tested that out thoroughly. Thanks for whatever you managed to do in the mission, it's cool to see it coming to fruition.

[@Festivejelly]

Then you woke up?@@apIthletIcc

[@zoro-i8u]

@@apIthletIcc If you were going to make Spiderman's web shooter, how would you go about it? And what material would you use for the shooter?

[@apIthletIcc]

@@zoro-i8u Im not an expert in trigger/launcher mechanisms so I couldnt begin to answer that although it is something I had on my mind kinda recently. I could ask my dad, hes better with everything else other than the rocket lol

[@zoro-i8u]

@@apIthletIcc Please do, thank you! I'm currently building a 3D printer to play with a design, the only other thing is better electronics and web fluid. I suppose my plans of pursuing an engineering degree will be worth it, heh.

[@woodwaker1]

Having been a 3D printer hobbyist for over 4 years - your comments about trial and error hit home, but what you can do with it is unbelievable

[@AlainODea]

This is incredibly inspiring stuff. It is good to see NASA innovation highlighted and its role in sparking terrestrial tech innovation for our benefit as well. Those rocket efficiency increases are mind-boggling!

[@jezza6575]

Wouldn’t say it’s a NASA innovation as the technology is being worked on by countless teams from universities to branches of the military and not simply NASA.

[@AlainODea]

@@jezza6575 good catch! Yes, NASA does work with and draw from many other groups and industry partners. Thank you!

[@UndecidedMF]

Yep, they’re a piece of a larger puzzle … but an important one.

[@Merennulli]

I didn't realize they were applying it to RDRE already. 3D printing the regenerative cooling was an amazing advancement, so seeing it be a part of the next fundamental design change in rocketry is wonderful. Relativity Space had said their real goal was to get their process in the door, and it's so cool to see that it worked. It's weird to me how some people think it's still a niche or toy process. At this point hardly anything is prototyped without 3D printing of some sort.

[@Michael-ij6kg]

Practically every rocket maker uses those Velo3D machines

[@wastucar8127]

Another example as to why publicly run science is infinitely more important and impactful then private companies.

[@YeOldeTraveller]

I'm surprised a discussion of 3D printed rocket engines does not mention RocketLab. I could be wrong, but I was under the impression they have been launching 3D printed engines for a few years now.

[@ryrylandcripps5811]

Yes and relatively nearly 3D prints the entire rocket

[@finnrutha4577]

Rocket Lab has re-flown a 3D printed engine already….

[@CaedenV]

Additive manufacturing is so crazy! The amazing thing about getting an aerospike engine or rdre engine to work is that it is less dependant on altitude. With a traditional bell style exhaust you have to optimize for specific altitudes. This then gives the necessity for multiple stages to stay efficient. With these new styles you can have a single stage that has similar efficiency for most of the route. Of course, there are also advantages to shedding weight of empty containers, so it may not entirely remove the need for stages, but you can have fewer longer running stages. But less fuel on board is less fuel to lift, which helps a lot with the tyranny of the lift equation.

[@dancingdog2790]

This is the kind of leading-edge work that NASA was created for, not helping to prop up the legacy rocket industry with $4B/launch SLS that was forced on them by Congress.

[@nononono3421]

But it’s not even NASA that is leading the way in using additive manufacturing in rocket production or design, Relativity Space have the biggest printer and have used it already to print most of the rocket they recently sent to space.

[@CausticLemons7]

​@@nononono3421Relativity is mentioned in the video.

[@Fenthule]

Oh my, the future of manufacturing is getting to be pretty space age - literally, thanks processes like this additive manufacturing, and also incremental forming. I'd love to see you touch up on that one, as it's been kicked around a lot over the years, but recently is really coming into it's own light with places like Machina Labs in LA really starting to crack the code - also literally (haha coding jokes are great.) on really starting to nail down the process, into an exact method that will very likely boost R&D speeds considerably in MANY different industries.

[@Nethanel773]

Truly amazing what can be achieved with 3D printing! Thank you for putting this up.

[@southcoastinventors6583]

Really should call it 3d welding

[@hobbyengineer1617]

The Spacex Raptor 2 engine has a reported chamber pressure of 300 bar. (4351 PSI) If they can print an engine to withstand that pressure then we're onto something.

[@BoredomLP]

Funny, I am about to write my Bachelor thesis on AM Processes in Repair of metallic Aircraft parts. Even with a smaller focus in manufacturing and the upcoming possibilities.

[@wadewilson524]

Wondering if additive manufacturing might also make an aerospike engine more feasible.

[@JanFreddy]

RDE's typically have an aerospike nozzle

[@bitflogger]

In a conversation between Elon Musk and the Everyday Astronaut, Elon said the tech risk and expense of aerospike engines did not seem to be worth the benefits. Adding RD benefits should tip the balance in its favor. Or if someone spends the money to derisk it. Heat at the tip of the spike is said to be a problem, integrated cooling channels from 3D printing may help with that.

[@davivify]

Very cool, Matt. One thing, since you were speaking about cost savings and efficiency so much, is the subject of re-use, that SpaceX and Blue Horizon seem to have mastered. It's great that they've been able to shave the cost of one-time-use components. The next big step, I'd say, is the ability to not have to throw away all that well made tech after each launch.

[@UndecidedMF]

Great call out on Space X and Blue Origin. I love seeing the different approaches to bring the space exploration cost down.

[@L4JP]

SpaceX is obviously the leader in reuse (a total of 229 landings of orbital-class boosters so far, and the number of flights and landings of an individual booster is now up to 17 and counting). But others are getting onboard, such as Rocket Lab (Electron recently started to reuse engines and Neutron is being designed for full reusability) and Stoke Space (new kid on the block, but they are doing innovative development of the second stage, which is by far the hardest part to reuse). Blue Origin has intentions, and sub-orbital hops are not nothing, but they haven't even tried to get to orbit yet... we're waiting.

[@iamaduckquack]

​@@L4JPBlue who?

[@karora]

Haven't Rocket Lab been 3d printing rocket engines for a few years now?

[@cpte3729]

not RDRE

[@Kriss_L]

A lot of my coworkers were huge fans of 3D printing, and many of them bought printers to use at home. I was not impressed with the little plastics things they made, but said that when they can 3D print metal - that will be a game changer.

[@ltborg]

Awesome video as always. Would love to see a video on Relativity and NASA’s partnership. Keep up the great work and congrats on the new studio/house.

[@thehappygnome]

Has additive engineering solved the problem of melting powdered metals with lasers? When last I heard, the method still had the problem in which the laser would ‘blow out’-much like a puff of air on dust-the metal particles before they fused, leaving voids, defects, etc. Thank you for a great show!

[@konradsandweg]

Fascinating breakthrough in technology. As a Sci Fi fan, it impresses me that most authors out there didn't think about this one. About practical applications down here... Would these added pressure and heat not benefit steam power engines like the ones on ships? Or how about an M1 Tank with this instead of the Jet engine? And then, the new materials that can take more heat and pressure? Can we have CPUs that can work with higher temperatures with this tech? With more efficient burning, how about steel production with less CO2 and less energy needs? Would it be safe to assume that rocket engines stand tremendous vibrations? If so, can we use the same technology to print a car engine that uses less cooling? Endless wonder!

[@Pats-Shed]

I recently had the pleasure of visiting Takumi Precision CNC in Limerick, Ireland 🇮🇪, they manufacture replacement hip and knee joints with 3D metal fusion printers to an extremely high quality. These joints are used in robotic assisted operations to ensure precise installation in the patients and giving a much better outcome in terms of patient recovery and lifespan of the replacement joint.

[@Toastmaster_5000]

One thing this video didn't really emphasize is WHY even a half percent efficiency improvement matters so much: part of the struggle in launching a rocket is you need enough thrust to not just carry the payload but also the fuel itself. So, you need more fuel for more weight, but because the fuel is heavy, you need more fuel to compensate for more fuel. This leads to an exponentially larger rocket than you would otherwise need, and it's also why every kilogram added makes a big difference. That's also why 95% of a rocket's weight is just fuel. That can add complexity and of course, there's just the cost to build and fuel it all. So, a 20% improvement in efficiency is absolutely mind blowing. I can't imagine how many hundreds of millions of dollars this will save for just a single launch. I'll be very curious to see how tiny one of these rockets will be in comparison to older models with the same payload capacity.

[@1shARyn3]

BIG positive of additive manufacturing is the lack of waste produced by machining ...

[@Mr.JesseR]

there's no waste produced by machining, only recyclable material. that's not considered waste

[@SavageOne420]

​@@Mr.JesseRsame with additive manufacturing, might need further machining but chips are chips and still useable recyclables

[@pockpock6382]

thanks for the real engineering video recommendation, really interesting video!

[@mackfisher4487]

Is Matt's T-Shirt one of Tim Dodd "Everyday Astronauts" or somebody else's?

[@kunalchandrakar4741]

A startup named Agnikul Cosmos is also 3d printing rockets for space sector.

[@crschoen123]

"More plentiful satellites" - this breaks my heart. Space is a beautiful natural resource that we're polluting at an alarming rate.

[@henrycarlson7514]

So Wise , Thank You. Ad is a Fine addition to the toolbox . A fine way to reduce waste and increase efficiency

[@FreekHoekstra]

Shout out to Integza, who afaik first covered this engine a little while ago and actually built one… Phenomenal explanation of the technology on that channel really cool stuff!

[@StealthyDead]

During intro, it's "...could lead to better things for you and ME down here on Earth." I is used before the verb, and me is used after. To test, just take out the other person. You wouldn't say, "... could lead to better things for I down here on Earth."

[@turnerdan53]

I think aircraft engines are already using this to build part with better cooling passages to replace the hard to make drillings. We are getting more powerful and efficient with less polluting engines as we also can make better controls.

[@DavidFrostbite]

_"Houston, we have layer seperation"_ lols aside, super cool tech!

[@bellofbelmont]

I have experimented with 3DP and I'm surprised at just how good a job I can do so I think additive manufacturing has a real place in the future. As you say there are some things that 3DP can do better and some that are still works in progress. I think a lot of todays tools are at the dot matrix printer stage so in a few years there are likely to be truly amazing results including speed and resolution. Thanks for the vid. Jim Bell (Australia)

[@rubidot]

This got me thinking optimistically about the possibilities of technology.

[@Danilio.]

Same here.

[@Etheoma]

is that 30% fuel savings or a 30% increase in specific impulse, because if it's the latter like even out of the context of the rocket industry that is huge, a 30% increase to specific impulse over the duration of a flight assuming the same trust and weight of the craft could like over half the amount of fuel you need, so it's probably the first.

[@Artista_Frustrado]

well one of the innovations i see there that i hope gets implemented is the idea of combining 3D Printers with fully mobile robot arms instead of enclosures

[@kalrandom7387]

The first 3D printer I seen was 08 and I was completely dumbfounded and kept telling the drafting teacher that that was going to change the world

[@KamrynCannon-i1u]

3D printing has incredible potential!. Wondering if additive manufacturing might also make an aerospike engine more feasible..

[@Greguk444]

Very interesting, thank you.

[@vesawuoristo4162]

Additive manufacturing is a marvelous idea that will revolunize many industries.

[@johnpoldo8817]

What is the nozzle temperature for additive printing metals and alloys? It must be extremely high for liquid flow. It’s very different from 3D printing plastics and house walls.

[@DoctorX17]

I think eventually additive is going to be the predominant method, but it’s still gonna be a while before it’s so easy anyone can make anything [like a Star Trek replicator]

[@logicalfundy]

We're a very long ways from Star Trek replicators - we would need much more than additive manufacturing for such a thing to be possible, since it really needs to be able to work on an atomic and molecular level to do some of the things shown in the shows.

[@DoctorX17]

@@logicalfundy indeed. I meant more figuratively - like, being able to tell your 3D printer “make me a set of drawers”, give it some dimensions, and have it spit out a set of drawers without having to adjust settings and all

[@BunkerSquirrel]

Elon: “we’re gonna have self driving cars by 2016” NASA: “check out our new revolutionary high efficiency rocket engine. It’s pretty cool I guess”

[@SequoiaElisabeth]

Impressive tech. It seems like the progress of technological innovation grows exponentially.

[@TheHellfiremissile]

At 3:06 min you called the rocket a "Gas Turbine engine" which is incorrect. Cheers ;-)

[@Goomaster101]

print in place 3d printers are coming soon too

[@bongosock]

One of the most important earthly applications for the RDE is in supersonic flight. Currently there is a propulsion gap between the upper operational limit of turbofan jet engines, and the lower operational limit of ramjet engines. The RDE could fill that gap, making supersonic flight for commercial transport much more feasible.

[@TheSapta15]

Please also cover Skyroot Aerospoace and AgniKul Cosmos, two of India's space startups also using additive manufacturing in rocketry

[@markumoeder]

The best thing about these developments is that it would only decrease fuel consumption or it would stay the same as time develops. Innovation is like investing in the future, the sooner you begin with developments/updates/innovate/reinvent like these kinds of things the more value you'll bring to the world because of its decreasing material usage/easier manufacturing .its expensive,frustrating and more time consuming in the beginning but before you know it we'll fly to space like we fly to different countries, especially if 3d printing innovations begin to boom and more and more minds begin to cluster, teaching 3d printing to students in school is a must imo, it could make them later on operate a 3d printer like we operate a microwave.

[@ZeeengMicro]

Can't wait to download NASA's rocket

[@Merennulli]

Getting "you wouldn't download a car" vibes. 😂

[@logicalfundy]

They already have some 3D models you can download! If you have some knowledge of Blender, slicers, and 3D printing you should be able to make some cool prints. Put: nasa models 3d resources into your favorite search engine, they should be some of the first links.

[@RamonMedina-j6q]

🤪👉Me quierooo largar de éste planeta ya!!👈🤑😉

[@fijnman3813]

Low series prototyping is the way for AM. High series production would be great as well, dare to dream! Great technology for designers.

[@shumann1605]

Nice change Matt. Very interesting topic. This new rocket engine tech is amazing. Not sure how long NASA has been using 3D printing for rocket engines and components for a few years now. As advanced as NASA has become, SpaceX is burying NASA when it come to overall cost. I like you highlighting just how far 3D printing has come now. Simply amazing. Thanks again Matt.

[@gbsbill]

I think this is facinating, Additive manufacturing! whow.

[@mrnnhnz]

Thanks for another great episode Matt.

[@kennethhicks2113]

Chemical reactions, nuclear fusion, biology... natures additive manufacturing. Interesting to learn and be able to do more.

[@itinsuranceguy]

Excellent video

[@jakubruzicka1686]

Thank you for video. 3D printing is whole new world of possibilities. I think you should attend to some 3D printing events to have a better picture about 3D printing and how 3D designs can be created. It is not a difficult process and you could share this information to your audience afterward.

[@muhdkamilmohdbaki7054]

3D printing a 3D printer, that is the first step for the next evolution. But before that, we need to 3D print CPUs, APUs, GPUs, NPUs etc.

[@travispyle2905]

Love your channel. 1 point, at 3:05 - Comparing "gas turbine engine" to a rocket is apples and oranges, NOT the same... wish it was compared to a different rocket.

[@johnguertin2577]

Matt seems like he knows what he is talking about. BUT he said "gas turbine engine" and the image was of a rocket engine. And at 4:45 he says "as the fuel mixes with air" again it is a rocket engine, there is no air in space. So did he mean as the fuel and oxygen mix?

[@ronm6585]

Thank you Matt. 👍🏻

[@UndecidedMF]

Thanks, Ron!

[@Mr-Highball]

Hey, small tuber here who experiments with additive / microwave sintering. I think i have a pretty good process for metals (even reactive metals like aluminum / titanium) but its been challenging to find labs or other 3rd parties to help vet results. Ive tried going the grant route but most ive found were with the army / sba and required accreddited research institutions to even apply. Do you have any recommendations for independent _researchers_ like myself (other than of course just making some youtube videos) to contribute and/or have results vetted?

[@bigrobsydney]

Any other exciting applications? Sure. How about a Star Trek replicator for food?

[@rays2506]

A very good video on additive manufacturing applied to rocket engines. For a little perspective: NASA currently pay $100M per copy for the RS-25 hydrogen/oxygen rocket engines that power the Space Launch System (SLS) at liftoff. The RS-25 takes months to build. The Raptor 2 engine built by SpaceX is an equivalent methane/oxygen design that costs $1M per copy. Present production rate is seven units per week. IIRC, the Raptor 2 uses additive manufacturing for some critical components. You really oversell NASA's relative contribution to this technology. Private companies are pushing the state of the art, not NASA.

[@Smiles10130]

I wonder how a scaled engine rotating detonating would compare to raptor 3. Also the cost comparison. They're definitely expensive, but space x uses engines that are 100x cheaper than the Rs25. Can there be any more cost reduction? They also produce slightly more than one a day, so it's not hard anymore. Although I do believe nasa should build a test engine that companies can use as a blueprint to build their own.

[@Vermiliontea]

Currently they don't compare at all. You can't get into the same magnitude when it comes to thrust or thrust to weight. You can't even get into the magnitude below the magnitude. It is very hard to see a path from this that leads to cheaper or better launch rockets anytime soon. There are so many things that need to fit into the bigger system of the entire rocket, the ability to throttle, restart, lifespan, but particularly *_thrust to weight_* , in order to build a cheap launch system. Now, when it comes to vacuum engines, space engines, otoh, particularly third stage rocket engines, i.e. post orbit, when thrust is not a big deal, only specific impulse, I think we might see these rotating detonation engines pretty soon, if they can crank up lifespan. They will provide a higher specific impulse for chemical rockets, which are far simpler and cheaper than Ion, plasma, nuclear engines. They're not as good, but they can be in a completely different ball park when it comes simplicity and costs. And they don't need a radioactive isotope power source or solar panels, only fuel.

[@davefromcave8202]

Colin you are awesome, please keep doing what you do

[@garyfindlay5503]

Great presentation Matt. I watched a chat GPT presentation a while back, once a more advanced version of GPT-style software meets a range of materials in 3D printing the possibilities are endless.

[@cpte3729]

....how?

[@capta1nseal]

Woah that guy at 6:20 really sounding like an advanced AI voice model 😅 Great content as usual 👌

[@stopscammingman]

This puts me in mind of America's WW2 Liberty Ships. There was a huge problem of their ships being sunk by enemy submarines and in response the Liberty Ships were made. If I recall correctly, it was taking an average of 45 days for merchant ships to be manufactured in America, but because of modern mass production methods, it took just 10 days for a Liberty Ship and there was even an occasion where one was build in three days.

[@RamonMedina-j6q]

😪👉aircarier 👈😭

[@harryvlogs7833]

You should do a video on aero spike engines

[@PaulG.x]

Not really news - Rocketlab's 3d printed Rutherford engine has been manufactured since 2015 and orbited in 2018 Good to see NASA is up to -date- decade

[@PalimpsestProd]

ask Tim Dodd if rotating detonation engines are good for landing.

[@aboucard93]

I noticed NASA turned off the come section for the RDRE video

[@goldnutter412]

103 tons ! that's probably enough for a whole automated manufacturing module

[@suggesttwo]

Gains in efficiency always results in a gain in power and fuel/energy efficiency: Efficiency = energy output/energy input Solving for energy output: ( x energy output ) Energy output = Efficiency x input energy

[@TheCornucopiaProject-bd5jk]

NASA is a fascinating government organization. I’m not surprised that they play with 3D printing.

[@iGleeson]

When you're talking to Paul, yoy genuinely look like you're about to burst out laughing at any moment 😂

[@the_hetman]

On fuel efficiency, it should be noted that the Merlin engines on the Falcon 9 are gas generator cycle engines which is simple (for a rocket engine) tech and is not very efficient. This is the same tech used by the first couple of stages of the Apollo rocket. The Raptor engines that are being developed for Starship are full-flow staged combustion engines that have a 97% plus efficiency, all be it with a much greater level of complexity.

[@chefdano3474]

Finally, NASA is doing something exciting again.

[@southcoastinventors6583]

lol they have always been doing exciting things maybe read the tech briefs

[@EricTheBlue2010]

What's up with the change in the background from your other videos?

[@mnomadvfx]

It's not just the weight difference that is important for needing less fuel per rocket launch. It's also cost. SpaceX makes a huge song and dance about reusable rocket engines but the realities of it are that recertifying a previously launched rocket for reuse costs almost as much as actually building one from scratch. So in this situation the huge cost of the fuel only adds to this problem.

[@davewebster5120]

I can't wait to see jet fighters (ngad and faxx) and boeing passenger jets using RDRE's So cool!

[@marcusodenmarck840]

Another application for 3D printing that could absolutely be used in space is manufacturing of spare parts on demand. Want to save weight? Bring a 3D printer instead of spare parts for everything that could break. This could be used both on long space voyages or for in orbit satellite repairs.

[@raphaelgarcia9576]

Wow, I’m so excited. I’ve been dreaming of this for decades. You could use cartridges of different matter that is sheathed in carbon that can be laid atom by atom using lasers. This tech will revolutionize our world.

[@Neko-uh7cp]

I think it’s worth mentioning that those types of engine are only efficient in a atmosphere. Once they have blasted the rocket high enough the effects change as the vacuum of space gets stronger.

[@Anvarynn]

You didn't post the Real Engineering video in the description like you said you would :(

[@west264]

Sounds like vibration issues and high tech launch issues.

[@esra_erimez]

I can't wait to see Warped Perception put one of these on a car

[@wtfatc4556]

60%???? We need an air breathing engine like this

[@neilwoodmansey9109]

Incogni doesn't have Australia listed when signing up.

[@cryptc]

3d printing spaceship parts on earth doesn't impress me, but it's huge for when you can do manufacturing in space because of it. Once you get that and space mining going, it will really speed up space programs.

[@dexterplameras3249]

The internet largely depends on undersea cables and cables to mobile towers. The cell phone connects to a mobile tower. Starlink is changing this for people in remote areas but for the large part, satellites are not involved with consumer internet.

[@macberry4048]

I would like to see the technology used for aftermarket car parts

[@ericfielding2540]

Thanks for mentioning some of the ways that NASA technology benefits people on Earth. You briefly mentioned Earth Observation satellites, which is still one of largest categories of satellites operating in space today despite the huge number of Starlink satellites launched in the last few years. NASA has a fleet of satellites in orbit and developed satellites that are operated by NOAA and USGS.

[@steviem8294]

Ocean gate make a 3D printed submersible please. We’re waiting.

[@blue_beephang-glider5417]

The one thing humanity got right was cooperation to repair the OZONE layer. The massive increase in rockets going into space is now ruining the ozone layer.

[@zam6877]

Some of the major underlying issues that are hinted here... ...is the vital need to prevent a monopoly in rocket launching We need multiple launch systems that are ACTUALLY compatible with each other

[@logicalfundy]

Watching this video as my 3D printer prints a case/stand for a hygrometer :). I think it's a great technology!

[@salt-emoji]

I think we as a modern society forget that 3d, and bio-printing (a subject you should definitely cover. It's like literally sci-fi irl. Fucking wild) were dreams of scientists as far back as the 18th century.