HD Felix Baumgartners space jump

[SpontaneousOrder]

One interesting thing (I think) is that if you could have trains capable of travelling at 18,000 mph, or even planes capable of the same, you would not need tracks or wings, because the craft would be weightless for the journey, even at the surface of the earth.

You'd have a nasty shock if you ticked the box to offset your carbon footprint though.

[suityou01]

Felix jumped unassisted. Believe me, if it had been you, you would have had a shove

[scooterscot]

I hope I just din't read someone suggesting angular momentum was reason why the space station remains in orbit. I blame Mr Gove.

Here's one for the mentally challenged amongst you. Throw a stone from the same height at the same time the hammer strikes the bullet and both bullet and stone will fall to hit the ground at the same time.

[SpontaneousOrder]

I hope I just din't read someone suggesting angular momentum was reason why the space station remains in orbit. I blame Mr Gove.

Here's one for the mentally challenged amongst you. Throw a stone from the same height at the same time the hammer strikes the bullet and both bullet and stone will fall to hit the ground at the same time.

Well no they wouldn't, that's the point Given a perfect sphere for an earth, the bullet has further to travel 'down' due to the curvature of the earth.

[scooterscot]

Well no they wouldn't, that's the point Given a perfect sphere for an earth, the bullet has further to travel 'down' due to the curvature of the earth.

Why do you think the bullet has further to fall?

[EternalOptimist]

Well no they wouldn't, that's the point Given a perfect sphere for an earth, the bullet has further to travel 'down' due to the curvature of the earth.

space might be curved, but scooterscot is totally bent

[SpontaneousOrder]

Why do you think the bullet has further to fall?

Given a static third party frame of reference, then the stone will move down amount Y, and sideways amount X (which is zero). The bullet will move the same Y amount down, plus amount X sideways (which we're not too bothered about, other than the fact that having moved sideways X, the bullet will not be on the ground yet.

I.e lets say that the stone fall time is 1 second. After 1 second the bullet will still be in flight. This is obviously precisely how orbits are achieved - the sideways speed is sufficient that an orbiting bullet would never hit the ground.

[EternalOptimist]

when I started typing this, I was a million miles away from where you are now.

so next time you accuse me of being off topic... fck the fck off

[scooterscot]

Oh dear -

I.e lets say that the stone fall time is 1 second. After 1 second the bullet will still be in flight. .

No it will not. Both objects shall hit the ground at the same time for as long as they occupy the same gravitational field.

[EternalOptimist]

Oh dear -



No it will not. Both objects shall hit the ground at the same time for as long as they occupy the same gravitational field.

if two objects fall, yes. but the bullet is ballistic.

what happens if you fire it upwards ?