when does the sky start and finish? when does the sky become "Space"?
2006-07-31 02:49:55 · 7 answers · asked by daniwrighty 1 in Science & Mathematics ➔ Earth Sciences & Geology
The air gets thinner the higher you go. It's thin at 10,000 at the top of a mountain and so mountaineers often use oxygen. Planes regularly fly at 30 - 40,000 feet where the air is very thin and the cabin of the plane is pressurised. That's why there is a drop down oxygen mask for each passenger - in case the cabin gets depressurised. Military jets will fly at 50,000 ft and maybe a little higher. When there is no air - that is space! Air produces friction at high speed, hence the need to heat resistant tiles on the space shuttle that enters the Earth's atmosphere at high speed. Amateur rocket enthusiasts in the UK have sent rockets up to around 60,000 and want to get one into space to orbit the Earth.
2006-07-31 05:43:43 · answer #1 · answered by Mike10613 6 · 3⤊ 0⤋
If you look at the horizon you can see the sky reaches the ground.
Therefore it starts from the ground.
Looking straight up you can see the stars in the sky.
Therefore space and sky are one and the same.
2006-07-31 03:02:56 · answer #2 · answered by Captain Eyewash 5 · 0⤊ 0⤋
sure, I certainly have that issue too. fairly if i'm doing anaerobic workout like weight lifting or resistance coaching. If i'm doing cardio workout like dancing or strolling, i circulate low, yet then circulate extreme an hour or 2 later. you will might desire to test slightly and verify your BG each and every a million/2 hour commencing in the previous you workout by using 3-4 hours later. everybody's physique is distinctive, and each form of workout will impression you in any different case. you're able to discover you're able to desire to bolus after workout to stay to tell the story top of issues. there's a e book you may order on Amazon referred to as "The Diabetic Athlete" this is effective in explaining how countless varieties of workout impression BG.
2016-12-11 03:34:00 · answer #3 · answered by bloodsaw 3 · 0⤊ 0⤋
the sky is just air and something changes when you get to a point and i guess that's space
2006-07-31 02:54:09 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It starts at the ground and ends about 100km up, the official start of space.
2006-07-31 02:57:17 · answer #5 · answered by anonymous_dave 4 · 0⤊ 0⤋
u can try this friend
2006-07-31 03:39:05 · answer #6 · answered by friendly to u 2 · 0⤊ 0⤋
Hmmm....interesting (not)
2006-07-31 02:53:39 · answer #7 · answered by lunarsky 3 · 0⤊ 2⤋