Why are the "UA" of different places different, when theyre supposed to be same?

You are on a train. Then, the train accelerates, most of the time, more than 9.8m/s/s. Do you feel the air in the train RUSHING towards you and giving you air resistance? Duh, of course not.

Now, imagine that the train is Earth and that the acceleration of the train is UA. Does that make more sense now?

So, we are now housed inside the Earth? Is there a glass dome above us blocking the air from reaching us?

Quote from: afiq980 on October 29, 2007, 04:06:01 AM

You are on a train. Then, the train accelerates, most of the time, more than 9.8m/s/s. Do you feel the air in the train RUSHING towards you and giving you air resistance? Duh, of course not.

Now, imagine that the train is Earth and that the acceleration of the train is UA. Does that make more sense now?

So, we are now housed inside the Earth? Is there a glass dome above us blocking the air from reaching us?

I was referring to the air in the train, which refers to the air that is present in the atmosphere. To be more exact, the train is not Earth, the back of the train that is "pushing the air" is the surface of the Earth.

"You fucking moron."

So you believe something on the flat Earth is containing the atmosphere? Where did you get this from?

The fact that if there weren't, the atmosphere would flow off the edge.

The fact that if there weren't, the atmosphere would flow off the edge.

Hence the Ice Wall. How long have you been here, seriously?

You are on a train. Then, the train accelerates, most of the time, more than 9.8m/s/s. Do you feel the air in the train RUSHING towards you and giving you air resistance? Duh, of course not.

Thanks for proving my point.  This is an excellent example of how the earth would accelerate the air.

Quote from: Monsieur Bishope on October 29, 2007, 05:29:57 AM

The fact that if there weren't, the atmosphere would flow off the edge.

Hence the Ice Wall. How long have you been here, seriously?

#

a 150ft wall could not contain the atmosphere, since we have mountains thousands of feet high that have air at the top of them.

Hence the need to draw the conclusion that the Ice Wall is not 150ft.

a 150ft wall could not contain the atmosphere, since we have mountains thousands of feet high that have air at the top of them.

Ice Wall's at least 40000 feet tall.

Quote from: Agent Z on October 29, 2007, 08:02:12 AM

a 150ft wall could not contain the atmosphere, since we have mountains thousands of feet high that have air at the top of them.

Ice Wall's at least 40000 feet tall.

why then, does it say in the FAQ that the ice wall is 150ft. And an ice wall that size would visible for thousands of miles away.

Quote from: afiq980 on October 29, 2007, 04:06:01 AM

You are on a train. Then, the train accelerates, most of the time, more than 9.8m/s/s. Do you feel the air in the train RUSHING towards you and giving you air resistance? Duh, of course not.

Thanks for proving my point.  This is an excellent example of how the earth would accelerate the air.

Yeah, thats how Earth accelerates the air, but it doesnt gives resistance to the parachute I am talking about.

: P

So you believe something on the flat Earth is containing the atmosphere? Where did you get this from?

If I am an FE: Huh? The atmosphere is not contained? Why isnt it overflowing or something?!!!

If I am a RE: Nah...the air is kept in the atmosphere by gravity.

On FE, the ice wall 40000ft tall at least, cannot be seen because it is beyond the vanishing point, the UA keeps the air in the ice wall, since it acts like gravitation. Either that or the ice wall is actually a huge dome containing the air.

Yeah, thats how Earth accelerates the air, but it doesnt gives resistance to the parachute I am talking about.

So, why is the parachute free from air resistance?

If I am an FE: Huh? The atmosphere is not contained? Why isnt it overflowing or something?!!!

If I am a RE: Nah...the air is kept in the atmosphere by gravity.

This is where reading comes in handy.

Quote from: Monsieur Bishope on October 29, 2007, 05:29:57 AM

The fact that if there weren't, the atmosphere would flow off the edge.

Hence the Ice Wall. How long have you been here, seriously?

Just imagine the Earth and Ice Wall as a cup of water.

Quote from: afiq980 on October 30, 2007, 05:33:06 AM

Yeah, thats how Earth accelerates the air, but it doesnt gives resistance to the parachute I am talking about.

So, why is the parachute free from air resistance?

The parachute is not free from air resistance.

The parachute experiences air resistance because it it moving downwards against the air and not because the air is moving up against it.

if the ice wall were 40,000ft high, everyone would have seen it. I maintain this position.

Quote from: afiq980 on October 30, 2007, 05:35:18 AM

If I am an FE: Huh? The atmosphere is not contained? Why isnt it overflowing or something?!!!

If I am a RE: Nah...the air is kept in the atmosphere by gravity.

This is where reading comes in handy.

Quote from: divito the fascist on October 29, 2007, 05:40:08 AM

Quote from: Monsieur Bishope on October 29, 2007, 05:29:57 AM

The fact that if there weren't, the atmosphere would flow off the edge.

Hence the Ice Wall. How long have you been here, seriously?

Just imagine the Earth and Ice Wall as a cup of water.

More accurately, imagine the Earth and ice wall as a cup of water, but there is no gravity holding the water in the cup. Instead, the cup is accelerating into the water.

The parachute is not free from air resistance.

The parachute experiences air resistance because it it moving downwards against the air and not because the air is moving up against it.

Again, thanks for proving my point.  So there is no difference between what would happen to the skydiver in the RE and what would happen to him in the FE?

Glad we cleared that up.

Quote from: afiq980 on October 31, 2007, 05:32:11 AM

The parachute is not free from air resistance.

The parachute experiences air resistance because it it moving downwards against the air and not because the air is moving up against it.

Again, thanks for proving my point.  So there is no difference between what would happen to the skydiver in the RE and what would happen to him in the FE?

Glad we cleared that up.

Whether the parachutist moves down or the air moves up depends on your FoR. At least I think it does.

Yep.