Technology:The Human Edge（14）
Let us have a look at the amazing world of unmanned aerial vehicles. Also, contracts, bills of sale, the minutiae of daily life four thousand years ago emerge to help unlock the secrets of a lost civilization. And, for the past forty years we’ve seen a kind of cosmic fashion show. Two generations of space suits designed for increasingly demanding missions.
- Added：2006
- Country：America
- Duration：30
- Time of update：2011/3/11 15:03:55