Questions tagged [movement]

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21
votes
4answers
7k views

Why is my Earth simulation slower than the reality?

It took me a long time to create a simulation of the Earth like that. I wanted to show the real spinning speed of the Earth. Here's my video: From this NASA live ...
11
votes
1answer
275 views

Liquids Plumbing on board

When a cargo mission is flown toward the ISS, there are at least four different kinds of liquids that may need to be moved into/out of the station: Propellant for Zvezda's thrusters Water Wastewater ...
5
votes
3answers
1k views

Mechanically propelled spaceship?

Is it possible to have some sort of a spaceship that basically runs on electricity and "butt kicks" itself forward? Or would it stand still because every force has an equal force in the opposite ...
5
votes
3answers
1k views

Are Martian winds as strong as portrayed in “The Martian”?

I read Andy Weir's "The Martian" and saw the movie, which is supposed to be realistic science fiction. And I immediately saw a couple of huge flaws, one of which I'd like to tackle with this question: ...
9
votes
2answers
8k views

Can you swim in space?

My wife shared this picture with me today: Adorable, but it got me thinking about that trope - swimming in space. I've seen it before, mostly in cartoons and not live-action shows, the latter of ...
7
votes
1answer
338 views

Playing football in microgravity: is it hazardous for instruments?

In video documents where astronauts are in micro-gravity, we often see them moving objects without paying attention for the nearby instruments or buttons panels (either aboard spacecrafts or aboard ...
9
votes
2answers
275 views

Could electricity propel Curiosity on Venus?

To-date the humans have dispatched surface missions to Mars Luna Venus Mars has a thin atmosphere. Luna lacks one. Venus has a soup-thick atmosphere. Landing a static craft on Venus is one thing. ...
36
votes
8answers
5k views

Wheels vs. tracks for rovers

On Earth, there are plenty of examples of vehicles that roam difficult terrain having tracks instead of wheels, while all (at least those I am aware of) extraterrestrial rovers have wheels. Is there ...