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/sci/ - Science & Math

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>> No.11689258 [View]
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11689258

>>11689170
>>11689176
Probably bait but rockets work because they throw stuff out their back end at a high speed. Throwing stuff out one way pushes the rocket in the opposite direction. That's also why rockets have limited fuel, because they have to carry all the stuff they throw out their back with them in order to go anywhere.

You don't need an atmosphere for this to work its like 5th grade knowledge. IF two people were hugging in a vacuum and one pushed off the other, they'd fly away from each other. Rockets work in the same way.

>>11689162
Fuck you OP you scared me

>> No.11664642 [View]
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11664642

When will a full Starship stack fly? Normally I'd say 2020, but Superheavy is not really tested yet. 2021?

I can't believe they're going to either beat SLS, or at least come close to it in terms of launch date. SLS' parts have existed since the 70's, and work was started in 2011. Starship's engines were first fired in 2016, and the Stainless steel was only stacked in 2018 first.

How did NASA mess up so bad? I remember in 2014 NASA telling everyone "Yeah SLS is on track for a 2017 flight" and then seeing cool slideshows with various missions that are enabled by it. Now SLS is just sad.

Also what the fuck is wrong with Blue Origin? They flew New Shepard in 2015, and still haven't put a person on it. It's miles simpler than Dragon 2 yet Dragon 2 will fly people before it.

If Blue wanted to actually do stuff they could've flown people back in 2016, after the In-Flight Abort. Yet here we are, four years later, and zero people have flown. The flight on New Shepard is literally short enough to have a person wear a pressure suit the entire time just in case of emergency.

They tested everything needed for New Shepard to carry people back in 2016. Why haven't they flown anyone yet?

>> No.11651748 [View]
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11651748

>>11646049
Bullshit? Probably, But I will believe it anyways.

>> No.11649517 [View]
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11649517

At the moment, it costs $250,000 to go to space for ten minutes. Is it worth it for you guys? The only reason I'm in Pre-Med right now is so I can afford my flight in a few years.

Is space anyone else's obsession?

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