Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] Temperature in Space



A follow-up question if I may on the Giancoli question about an animal freezing at high altitude even though the temperature is 700C.

Where the temperature is 700C at high altitude, what instrument does one use to measure this? How does one avoid picking up external radiation effects if one just wants the average kinetic energy of the air molecules?

On the moon in daylight the temperature is about 250C but there are virtually no air molecules. Did the astronauts wear air conditioners because primarily of the solar radiation rather than any local temperature? Would the lunar soil be hot and would this register on a regular thermometer stuck into the ground?

Thanks for the previous responses.

David Abineri


--
dabineri@fuse.net