In this week's questions show, I explain why you could have a steam-powered rocket, how often spacecraft have crashed into asteroids and comets, and why a red supergiant star actually has a very low surface gravity.
02:42 Could you build a steam-powered rocket?
04:48 Have any probes crashed into asteroids or comets?
06:47 Surface gravity of UY Scuti
08:57 Will we ever send humans to the surface of Venus?
11:08 Lol
11:24 Does Venus have a magnetic field?
12:22 Longer guest interviews?
14:09 Save the shoutouts to the end
15:55 Could a probe float at the surface of Venus?
16:47 Where do I get my news?
20:29 Why don't meteor showers hit satellites?
21:57 Why not add a module to James Webb?
Want to be part of the questions show? Ask a short question on any video on my channel. I gather a bunch up each week, and answer them here.
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I think there could be a sound if explosive gasses came into contact with me, but I would not take off my helmet to find out. If I were an astronaut near an explosion.
things that go boom …. but not quite a Big Bang. Is Dark Energy the lazy brother that didn’t felt the Big Bang the way Baryonic matter did and just kept on moving where Baryonic matter thought that Gravity had won this round? I know one answer to what is normally considered lazy … its inertia.
No, dark energy is constant, not particulate.
Inertia is not “lazy”, but resistance to change, i.e. setting up a reactive force. As it equals massenergy, it has many contributing mechanisms (strong force, Higgs field, gravity, …)
The setting of this topic always makes me laugh. Even if you make one part of a movie compatible with science, the whole concept of a movie with artificial viewers, cuts and even non-causally placed sequences is entirely non-compatible. Any explosion can very well be thought of as been heard by a microphone (observer) separate from the camera (another observer), or added for effect. That is _the whole point_ of the movie, to tell a subjective story.
Beautiful in theory but, totally lacking in any kind of… movie sense.