I've noticed in several videos that the crew member appears sweaty or shiny. Is this due to the temperature/humidity in the ISS or because the moisture doesn't evaporate the same way? I'd be interested to know if anyone has an answer.
Absolutely everybody you see on TV is wearing tons of makeup, because cameras paired with artificial flourescent spotlight just seem to exaggerate this nasty shiny effect.
While it's true that the lighting often doesn't help, the biggest problem is that the lighting can produce a lot of heat, so it's actually the lights making people sweat, not just making sweat show up more. Not sure lighting on the ISS is likely to do that, but could be wrong.
(This is from 'Packing for Mars' by Mary Roach)
I guess heat conduction is difficult if your spacecraft is in a vacuum.
Very much so. Search for "heat" in this SVG and you'll see the giant accordion radiators: http://upload.wikimedia.org/wikipedia/commons/a/aa/Iss027e03...
When the Space Shuttle was in orbit, it kept its giant bay doors open to expose its radiators.
If you'd like, I can dig up some extensive articlage written for hard sci-fi writers about dealing with heat for engines and for life support.
* http://www.projectrho.com/public_html/rocket/basicdesign.php...
These next two are in regards to dealing with heat in space warfare:
* http://www.projectrho.com/public_html/rocket/spacewarship.ph...
* http://www.projectrho.com/public_html/rocket/spacewardefense...