Interesting tidbits! Airports at higher altitudes require a longer airstrip due to lower air density. A comets tail always points away from the sun. If you get into the bottom of a well or a tall chimney and look up, you can see stars, even in the middle of the day. The moon moves about two inches away from the Earth each year. The Earth gets 100 tons heavier every day due to falling space dust. Due to earths gravity it is impossible for mountains to be higher than 15,000 meters. For every extra kilogram carried on a space flight, 530 kg of fuel are needed at lift-off.
Posted on: Tue, 29 Jul 2014 15:31:56 +0000