The cold shrank the rubber o-rings and they did not seal the joints properly. During ascent, hot gases escaped through one of the joints of the SRB. Like a blowtorch, the gases cut through the thin skin of the ET and ignited the liquid hydrogen fuel. Challenger broke up and the crew ...
Finally, the issue of how deer see short-wavelength light has received considerable attention. Recent results also lend insight into this issue. “The difference between daylight human foveal vision and daylight deer vision is expected to be even more dramatic for short-wavelength light than it is...
How to dispose of hazardous waste You’ve already got a lot on your to-do list before a move, but you can’t neglect the importance of properly disposing of hazardous materials. There are very real consequences when these substances end up in landfills or recycling plants, and it’s everyo...