00:10
00:09
00:08
00:07
00:06
00:05
00:04
00:03
00:02
00:01
| a radiation of high penetrating power that originates in outer space and consists partly of high-energy atomic nuclei |
| the removal of energy or particles from a beam by the medium through which the beam propagates |
| form drag | |
| —n | |
| the drag on a body moving through a fluid as a result of the shape of the body. It can be reduced by streamlining | |