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and if this is true are they going to hold the world to ransom? if an equal number of people stood on tables on the other side of the world and jumped off ath same time what would happen? and could we pilot the earth round the cosmos by getting different nations to jump up and down in unison at different times?

2006-08-30 02:52:32 · 24 answers · asked by jonny_nowhere 2 in Science & Mathematics Astronomy & Space

24 answers

No. First off, the force from even all chinese people would be too small too seriously disrupt the orbit.
Second off that's not how gravity works. When these people jump up, earth and the people move away a little bit (Extremely little I may add) from each other. When the people have jumped and are in the highest possible position, and are about to fall down, the earth has actually been disrupted temporarily from its orbit. But as soon as the mass of people starts falilng towards earth, whatever disruption they had cause will be neutralized. The only way to permanently disrupt the orbit is to shoot away things out of the atmosphere.
Edit: In other words: All you do is move the earth relative to its mass centrum for a very short period of time.

If you want to picture what goes on consider this:
You have two carts. You stand on of them, and the other one is loaded with something very much heavier than you. Place the two carts besides each other. The you, standing on one of them, push them away from each other. Your cart will roll away quickly, while the other will start to roll slowly in the other direction. This is an analogy to what happens when you shoot something off the planet.

Now consider you do the same thing, but you have a flexible spring or rubber band attached between the carts. Insted of rolling away from each other, they will roll away a bit from the center point and then return to where they stood before you pushed them away from each other. This is an analogy for what happens when you jump up in the air and fall back.

A little bonus fact: Even though you can't disrupt the planet's orbit by jumping, you can shake it. In Britain there was an experiment where school children jumped in different areas of the country for a couple of minutes. This event was actually picked as a small earthquake by british geologists.

2006-08-30 03:23:28 · answer #1 · answered by nitro2k01 3 · 0 0

No, you would not push the Earth out of its orbit.

Let's do the math. If the average chinese person weighs about 50 kilograms (110.231131 pounds), and there are 1500000000 (one and a half billion) chinese people, and China is flat (so they aren't pushing against each other due to the curvature of the Earth, which they would in fact be), that's 75000000000 kilograms moving, say, one meter each. The Earth has a mass of approximately 5974200000000000000000000 kilograms, so you've got 0.0000000000000125539821 of the Earth's mass moving it. This is about equivelant to a little cubical insect eight thousandths of a millimeter on a side trying to move you by jumping on your head. And then, of course, all those people will all come back down, with them and the Earth attracting each other by gravity, so the actual energy change would be far smaller still. In fact, I would not be at all surprised if the launch of ONE space shuttle into orbit wouldn't push the Earth farther than all those chinese people jumping.

Get the idea?

But that's not all. Even if we COULD slowly push the Earth around the Universe by jumping, as soon as we got our orbit out to around that of Mars, we'd all be frozen to death through being too far away from the Sun.

Conclusion: This theory = BS.

2006-08-30 03:17:24 · answer #2 · answered by Anonymous · 1 0

actually, yes.



Take the equation Mass x Velocity= Mass x velocity.


The earth gets pushed slightly out of its orbit everytime something something gets pushed off it, even when you yourslef jumps! Your mass x your velocity = the earth's mass x its velocity. Therefore, you have a very, very small mass compared to the earth's and therefore have a higher velocity, and because the earth has a huge mass, it obviously doesnt look like it moves becuase it has an enormously low velocity when you jump.

2006-08-30 05:13:21 · answer #3 · answered by Dave 2 · 0 0

Please tell whoever advised you to give up telling tall thoughts. in simple terms call them on it. They probable like magnificent human beings. unhappy element is, there is countless lots greater exciting issues that are surely genuine. Your informer ought to do slightly study earlier happening to mystify human beings. the two that, or the guy I defined above grow to be someplace up the line out of your guy, who in simple terms have been given fed bs such as you probably did. :-) That pronounced, specific, the Earth's orbit strikes whether you faucet a finger against your table. action and reaction. You hit the Earth or something anchored to it with a tension of a million newton (such as the strain of one hundred grams of count), the Earth strikes the corresponding volume. as a result, it would be approximately countless Planck lengths, i might guess. (Planck length is on the order of 10^-31 meters, if I remember properly, or 0.00...001 m, the place there are 30 decimal places packed with zeroes.)

2016-10-01 02:15:17 · answer #4 · answered by luera 4 · 0 0

amusing ;-)

but of course not. The Earth's mass is 6.4E23 kilos. One billion human beings weighing say 50 kilos (there are women and children) weigh just 5E10 kilos, i.e. more than 1E13 times less. Even if all managed to jump at the same time (which is of course impossible), the Earth would not feel it at all.

hope this helps

a

2006-08-30 03:47:17 · answer #5 · answered by AntoineBachmann 5 · 0 0

No.This is a problem in mechanics. For earth to move out of orbit we have to consider forces acting on Earth after isolating it. Forces on earth namely force of gravitation because of Sun and change in momentum due to its motion in orbit and rotational torque will all remain unchanged except for slight momentum imparted due to people jumping off. Considering the mass of earth and those of men this momentum imparted is negligible. So nothing will change.

2006-08-30 03:08:00 · answer #6 · answered by openpsychy 6 · 1 0

this earth is so big that if you increased the earth population a million times over and put everyone in one spot and they jumped off a table it would have no effect at all on the earth.

2006-08-30 03:04:27 · answer #7 · answered by mack j 2 · 0 0

no it is not possible since the mass of earth is very large and it can't be affected by jumping of every individual on earth at a same time.

2006-08-30 03:39:00 · answer #8 · answered by aaayush 2 · 0 0

To answer all 3 questions: #1 probably not, #2 probably nothing, and #3 very doubtful. Sounds like a plot for a horror film, though.

2006-08-30 03:03:38 · answer #9 · answered by Gramms 4 · 1 1

It's worth a try!!
How would you organize it?

After all, the scriptures do say that in the Last Days [which we are certain that we're in], "the earth shall roll to and fro as a drunken woman"!!

2006-08-30 03:04:34 · answer #10 · answered by dr c 4 · 0 2

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