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Tim Dodd

๐Ÿ‘ค Person
2986 total appearances

Appearances Over Time

Podcast Appearances

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

a literal force field as it's falling through the atmosphere.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

Interesting.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

But it also decreases the velocity by almost half or around half, and then that therefore decreases the amount of โ€“ the biggest thing with the atmosphere is that as it gets compressed against the front of anything flying through the atmosphere, the compressed atoms just get hot.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

And they can get so hot, they turn into a plasma.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

And they get so hot, they can just absolutely destroy anything.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

So they slow down enough that the air molecules don't end up, you know, destroying the vehicle on reentry.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

And then they realize, I think at some point, it's probably a similar crossover.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

They're like, well, if we're lighting the engines already to slow down the atmosphere, we can just use that same engine to land.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

And so like, well, what if we just stuck landing legs on it and...

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

just landed the thing vertically.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

And next thing you know is December 21st, 2015, they did exactly that for the first time.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

Yeah.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

Yep.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

Early 2014.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

So that, and for me, like that was so fun watching, you know, that was like the peak of me just becoming obsessed with,

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

with this idea i'm watching at with like in back in the day it was like months between launches you know so a launch was like a big idea i'd wake up at 3 a.m to watch this landing attempt or whatever you know and every you know there's crs4 um almost almost landed crs5 almost landed crs6 cr7 blew up i was watching that on i think it was like a saturday morning or maybe a sunday morning and i remember watching that and watch it blow up and i'm like oh

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

Now what?

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

You know, and it blew up on ascent.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

It was their first failure.

Lex Fridman Podcast
#356 โ€“ Tim Dodd: SpaceX, Starship, Rocket Engines, and Future of Space Travel

So it was their 18th flight, I believe.