Hi there,
Doing a project for school. Does anyone know when this program aired or what the exact title was? Need to get a copy that looks good. Can anyone help???
Marc
310 678 6947

200 revolutions per second, i can do 200 revolutions per minute myself

200 rpm isn't much - I could probably achieve that in my swivel chair :)

Maybe you meant 2000 rpm?

yeh, go swivel, hopefully at 2000 rpm if the bearings on your chair can take it then it will be one less physics illiterate arsehole to worry about on metacafe.

you couldnt reach 3.3 rps in your swivle chair... but yeh he prolly mean 2000 ..

you're a funny man, true true tho ... :D

dont forget the speed at which an incoming spacecraft is travelling. 24,000 km/hour on re-entry. that has toslow down to 320 km/hour on landing, a little more than freefall. this pioneer didnt have the speed in the first place so he would deccelerate very slowly to terminal velocity in the thick air before he ejected his chute. all the same, one hell of an achievement at the time and still is. we owe alot to science because of brave, fearless and courageous guys like this. brilliant filming and superb documentary.

as it says in video. that is still under the earths atmosphere. the atmosphere is denser than the air at ground level, hence the insane friction levels. If he was falling through the atmosphere he would have started to burn up. If normal air had that much friction, gun bullets would burn up as the travelled through the air....

He reached 900 kph before slowing in the denser low atmosphere. Terminal velocity in the lower atmosphere is about 200 kph.

Why do you think jets fly at 35,000 feet? It's because the air is thinner, and there is less friction, so they can use less fuel.

a space ship such as the shuttle when orbiting the earth is actually traveling laterally at between 17,000 to 18,000 miles per hour relative to the earths surface. to decelerate to land the space ship will use the friction of the earths atmosphere to slow down. it is this slowing down that causes the heat. Capt kittenger was almost stationary relative to the surface of the earth and so fell straight down and so had no lateral speed to loose. his actual speed in freefall was significant but not enough to generate such heat. If a space ship was stationary in relation to the surface of the earth and fell straight down from 20 miles up it too would generate very little heat in re-entry

He had to wait around up there until he saw a big chunk of gravity come past and then he grabbed hold and was safely pulled back to earth. Imagine if he hadn't seen any gravity up there... lucky bloke eh?

The gravity holds the moon there where it is, and it is in the space too. Much further than the balloon was:)

As the caption reads - he was 102,000 feet (20 miles) up - which is not even close to the 63+ miles (over 320,000 feet) which is usually agreed to as 'space" - You must also keep in mind that there is still gravity is space. Satellites in Geosynchronous orbit are kept in orbit by Earth's gravity - even though they are at an astounding distance of 23,000 MILES above the Earth - what keeps them from falling into the Earth is their horizontal momentum.

Because back then they said man couldn't breath at speeds above 60mph. At least come up to the 21st century.

You can be him. A balloon ja helium. Some years ago there was a man on east coast of USA that tied a bunch of weather balloons to a garden chair. He sat in the chair and let go, but as the thing rose he realised ha had no way to get lower. At the end the army had to go and pick the man as he was hoverin above the Atlantic.

This is true! Go search some archives and verify it yourself.

It was in California in 1982. The guy's name was Larry Walters. It's worth doing a web search about him.

They ended up charging him with something like "Unauthorized flight in a restricted area" or something like that.

You can be him. A balloon ja helium. Some years ago there was a man on east coast of USA that tied a bunch of weather balloons to a garden chair. He sat in the chair and let go, but as the thing rose he realised ha had no way to get lower. At the end the army had to go and pick the man as he was hoverin above the Atlantic.

This is true! Go search some archives and verify it yourself.

It’s simple. Speed = Distance x Time. With directional radio receivers, they can triangulate the altitude when he jumped and the altitude when he opened his chute. That will tell them the distance and time. The rest only requires them to adjust for the acceleration factor, but that can be minimized in error by taking multiple reading during the decent.

Distance = Speed x Time.

That’s what I get for running through a comment too quickly. You are correct Distance = Speed x Time. Therefore, Speed = Distance / Time. Thank you for putting me back on track. I’ll go eat my humble pie now. ;)

But think about it, with the thinner air in space (less friction) he had to of been scootin' before opening his shoot. And with the thinner air, when he did open it there was less of a strain when it pulled tight. What an incredible feat!!!

I saw the show some time ago and i can't remember how many but i think he had 3 chutes to go decelerating gradually

ive skydived before and would love the experience to take longer :) maybe this is for me (on the other hand maybe not), amazing video thanks for posting it:)

You are all stupid. Why would he need 3 chutes?

He would just fall until inside the atmosphere and reached terminal velocity (look it up) it then doesnt matter how long you fall.

It would be no different to a normal HALO (high altitude low opening) jump. He would take oxygen with him.. and a warm vest.

as he was falling through very thin air, he was able to go at the speed of sound.... but as it says in the video, he decelerated as the air thickened and terminal velocity decreased. by the time he opened his parachute, he would have been going the same speed as any skydiver opening their chute at the same height who had hit terminal velocity, regardless of starting miles higher. Doesnt mean he didnt pack 3 chutes though... I would!

if you are going that fast your buig shute will not open it will just follow you down to the ground. if you arent going slow enough the wind will not let it open...

If you are going too slow, the chute will not open. That is why on low attitude drops paratroopers use a line attached to the airplane to open the chute for them. Otherwise, the soldier would hit ground before the chute opened. Even base jumpers use a small drag chute that they pull out by hand which will then pull the main chute out of the bag. If Kittenger used 3 chutes(sorry I did not see the full video) , then they where probably graduated from small to full size. If he had tried to open a full sized chute while at the speed of sound it would have definitely opened. Then it would have snapped him into like a twig and/or ripped away. If he opened his main chute at anything greater than terminal velocity (120 mph), it would hurt - all lot! There is a lot difference between the speed sound (750 mph - which he exceeded) and terminal v 120mph - and relying on only air friction on your falling body to slow you down might get a little...warm.

You can see at least 3 parachutes come out from his pack one after another .... obviously there are 3 or more to slow him down ..even if it was a safety measure ..it's in the video.

He had fallen for 13 seconds when he opened a small 6 ft (1.8 m) stabilization parachute to prevent spinning, but his free-fall continued for a total of 4 minutes 36 seconds until Kittinger's main 28 ft (8.5 m) parachute deployed at an altitude of 18,000 ft (5,500 m). This chute allowed the pilot to slow his decent and make a gentle, safe landing in the New Mexico desert about eight minutes later.

Terminal velocity is the maximum rate things can fall at, because of the thin atmosphere was he able to achieve the speed of sound AS terminal velocity or did he even reach TV?

Terminal Velocity is when both gravity and air resistance are equal.

Yes.. his original terminal velocity would have been the speed of sound maybe... but it would have changed as the air thickened on approach to the ground.

Once at 20,000 feet he would have been failing the same speed as a regular jump.. all without the need for a previous chute...

Although he would need one for the last bit!

funniest thing i have ever read!

stupid!!!!

what does that have to do with the video?

You are mentely retarded!