KonaEarth

When growing up in Korea, did you bedroom have a ceiling fan?

There are far too many to list. Plus, everybody finds different things interesting so you'll just have to search for yourself. Here are some decent places to start: /r/space http://blogs.discovermagazine.com/badastronomy/ http://blogs.nasa.gov/cm/newui/blog/mainblogs.jsp

Type an astronaut's name into Google or Wikipedia and you'll find a wealth of interesting links.

After seeing your bit about visiting the Middle East, I believe you are helping to achieve this. Thanks!

The ISS does NOT smell like old feet.

The air recirculation is very good. In fact, if the astronauts misplace anything, they usually check the air return vents first. After floating around the cabin for a bit, everything ends up there.

Exactly! Imagine a single car engine that is made to fit in any size car from a Mac truck to a VW Bug. It will work but it will never be perfect and probably won't be much cheaper than building your own. If you want real performance then you'll need something designed for your specific needs. Of course that only works if you actually know how to build an engine.

It is a very common mistake to think it's the code that is valuable when it's actually the coders that have value. Even a popular engine like Unity or Unreal still requires ample expertise. Once you have that expertise, making your own engine is a very reasonable option.