Wednesday, February 25, 2004

Mars questions


interesting joke... guys should remember the sentence in subconscious. also, did you stay up last night? the posting time was unbelievably early... if you can really get to office before 7am, it is almost a legendary rooted from 5#120

I have a question just discussed with a nerdy classmate after computational mechanics class without answer: after the rover launches on the surface of Mars, how is it supposed to overcome the gravity of the planet to come back to the craft (assuming it's staying on the orbit around Mars) ? does a rocket needed to give thrust?

can any science friends give some insights?

another amateur's question is: what is the general wind velocity on Moon? do you have in mind the picture of the first aeronaut standing on moon, waving, with an American flag flying happily? if the moon is as "dead" as the impression we had in mind, with very small gravity and thin layer of atmosphere, where does the strong wind come from?

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