Post by glactus on Apr 18, 2011 5:16:54 GMT
(1) Astronauts in space can't belch - there is no gravity to separate liquid from gas in their stomachs.
(2) Because of the speed at which Earth moves around the Sun, it is impossible for a solar eclipse to last more than 7 minutes and 58 seconds.
(3) The moon moves about two inches away from the Earth each year.
4) Because life first evolved there, nine out of every 10 living things still live in the ocean
(5) Airports at higher altitudes require a longer airstrip due to lower air density.
(6) 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.
(7) Due to earth's gravity it is impossible for mountains to be higher than 15,000 meters.
(8) The International Space Station gradually falls back to Earth and has to be lifted to a higher altitude every now and then, Up until now this exercise has been done by Russian Soyuz spacecraft.
(9) Why is finding water on other planets so essential - because it can produce 3 key products - Drinking water, oxygen and hydrogen for spacecraft engines.
(10) What comes out of a Black Hole? - Nothing. If light is not fast enough to get away from the gravity of the black hole, then nothing else can get away from it either.
Black hole
(2) Because of the speed at which Earth moves around the Sun, it is impossible for a solar eclipse to last more than 7 minutes and 58 seconds.
(3) The moon moves about two inches away from the Earth each year.
4) Because life first evolved there, nine out of every 10 living things still live in the ocean
(5) Airports at higher altitudes require a longer airstrip due to lower air density.
(6) 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.
(7) Due to earth's gravity it is impossible for mountains to be higher than 15,000 meters.
(8) The International Space Station gradually falls back to Earth and has to be lifted to a higher altitude every now and then, Up until now this exercise has been done by Russian Soyuz spacecraft.
(9) Why is finding water on other planets so essential - because it can produce 3 key products - Drinking water, oxygen and hydrogen for spacecraft engines.
(10) What comes out of a Black Hole? - Nothing. If light is not fast enough to get away from the gravity of the black hole, then nothing else can get away from it either.
Black hole