Recent content by Archaeopteryx

I'm currently in university and am taking supplemental math classes for an engineering major. I am currently undecided which engineering path to chose to major in as of yet. Materials engineering caught my eye and I just want to know some examples to work that materials engineers do. I have read...

If an ancient civilization were to have great lost technology and had previously shot satellites into orbit would they still be orbiting today, and if so would we be able to detect them without previous knowledge of them? Say 6,0000BC, 10,000BC, 15,000BC, 20k+BC? for the civilization times. I...