How NASA Tests Spacecraft Reentry

Bit of a different video, trying some new stuff! Thank you so much to NASA Ames for letting us tour the facility, and for putting up with that thing I did in their wind tunnel.

For more info:

[thethoughtemporium]

So jealous ya'll got to go on this tour. It looks amazing

[RealEngineering]

Dude this was on Monday. How did you make this video so quick? I haven't even unpacked yet

[brentwalker]

I was a human test subject at AMES in a study on exercise for the Mars mission. Got to meet one of the shuttle astronauts. It was a real honor to play a small part of the US space program. Great video!!!

[NistenTahiraj]

The tangents are honestly my favourite thing about this channel now.
Makes me not want to skip anything, and the videos are not often crazy long which is perfect

[supernova]

Am i the only one that wants joe to post like 2 hour long videos on his second channel that is him just going down all of his rabbit holes? Itd be like a podcast of someones unhinged science rambles and id love it

[PlexiumGames]

God that footage of the ablation is so cool looking.

[Shure_Lock]

another SLAMMER! also, the obligatory "HELLO" in an echo chamber was absolutely necessary

[NickelC]

I really love the final shot out at the wing of your plane, because that wing very likely once had a model in the Ames wind tunnel

[JaredBrewerAerospace]

I was and still am a CFD engineer from my master's thesis until now and no CFD will never 100% replace real testing for everything. It does and has already replaced wind tunnels within F-1 because we have 10000x the number of real windtunnel tests compared to the number of simulations that are being done. The regime that those vehicle operate in are very restricted and through regulation they are not set to start operating another 100 mph faster anytime soon so because the operational domain is very refined and so very well studied experimentally it will be years before CFD catches up to account for all of the simulation backed phenomena just in the boundary layers alone.

[biscuit]

For anyone who wants to compare the plasma to other very hot things, 30000F is 17000K. For reference the core mantle boundary is up to 4500K, with the inner core being around 5000K. The surface of the sun is 6000K, though the core is 15 million, so we've got a way to go there.

[ArrKayCee]

9:02 This method is used often in F1, they apply a high-vis paint to areas they want to see the flow of air over, except they don't just do it in tunnels, they also do it on track. You can see it sometimes during practice but most often during pre-season testing.

[AstroCharlie]

What a cool video of the awesome stuff going on around Ames! NASA definitely deserves the recognition for the amazing technology work they do outside of the high-profile flagship programs.

[DerrickBommarito]

The slightly different focus on the details in the arc jet system, modelling the engine, and going into the wind tunnel tech at the facility was super cool. Can't wait to see others' videos for more details and I hope more videos like this get to happen in the future! Just the right amount of rabbit holes and the writing is great. And the video shots are entertaining. More waves at perfect optics plz!

[NonEuclideanTacoCannon]

Lots of familiar faces in that crowd. Man, that footage from the arc jet is nuts.

[Cooper_]

Joe: “I test my heat-shield with a very hot blow torch“.
NASA Ames: “Hold my beer”.

No shade, Jon, but wow. I drive by that facility occasionally, and often wish I could get a glimpse inside. Thanks for taking us there.

[Liam-abc]

I don’t get why they made this so complicated when they could’ve just made it out of blue tape and hot glue

[mikerat]

9:35 thank you for putting potential embarrassment on the line and getting that audio clip for us!

[NaPatman]

8:50 oh god PLEASE go on every single tangent, I LOVE your tangents

[ScoutSniper]

Glad to see Hanger 1 going back together. As a high school student I trained at NASA Ames Research Center for machining and design. Later my first duty station in the U.S. Navy was VP-31 Staff in Hanger 1.

Got to climb all over it, even opened the top hatch and sat on top of the hanger for a Blue Angels airshow. Good times.

Once I put in a Request Chit to "Paint the hanger a light golden brown, so as to disguise it as a giant twinkie from the air". Oddly my request was summarily denied.

[CaseyDoranWritesCode]

woah is that Tim Dodd the everyday astronaut