Mike Wise
  • Member for 6 years, 11 months
  • Last seen this week
  • Frankfurt and Seattle
Do the planets really orbit the Sun?
9 votes

Mach's principle (which is somewhat controversial, but has led to some inspired thinking - see Wikipedia) can be interpreted as saying there is no center really, it is the overall distribution of mass ...

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Are there any effective ways for removing/decreasing oxygen in a habitat on Mars?
1 votes

Oxygen is quite easy to remove from air. An extreme measure would be to light a fire. But there are numerous other chemical reactions that will do it too. A lot of metals oxidize on contact with ...

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