Global Warming - your chance to do something about it

http://www.worldjumpday.org/

:icon16:

Hahaha! Pretty interesting. How about a little math:

Jens Gundlach and Stephen Merkowitz from the University of Washington have found that the Earth
weighs in at 5.972 sextillion (5,972,000,000,000,000,000,000) metric tons
(credit:http://www.abc.net.au/science/news/stories/s122885.htm

Population of the World (2005) 6,462,392,746
From: http://www.census.gov/ipc/www/world.html

If we take the average weight of all humans on the planet to be 150lbs, this totals to: 484,679,455 tons. Say we triple that to reflect the impetus imparted by jumping. So now we have 1454038365 tons. Since 1 ton = 0.90718474 metric tons, we have 1319081416 metric tons.

So the weight of all people on the planet divided by the weight of the planet is the percentage or the earth's weight that all that jumping will move, or .00000000000022087(give or take).

The Earth's orbit stands at approximately 93,000,000 miles from the sun.

So, if everyone on the planet jumps at exactly the right time, theoretically the earth's orbit will change according to the percentage times current distance, or .00000000000022087 X 93,000,000 miles, or .0000205416 miles. That's .108459769 feet, or 1.3 inches. 3 cm.

:lol: So I don't think that they've done their math, or perhaps are overestimating the climatic change brought on by moving the earth (theoretically) 3cm further from the sun.

They also haven't taken into account how that would affect the moon, the international space station,

or, for that matter, Pam Anderson's breasts. :lol2:

http://www.worldjumpday.org/

:icon16:

That is THE funniest shit ever!! :rofl: :icon16: :rofl:

That was great :lol2:

Heh heh thanks. But hmmm...after review I may have a flaw in my physics, but I'm sure someone will point it out.

Heh heh thanks. But hmmm...after review I may have a flaw in my physics, but I'm sure someone will point it out.

Yeah you do! :icon16:

Yeah you do! :icon16:


Thanks. But I'm going on vacation now so hopefully it'll be fixed by the time I get back.....

someone e-pinch me

The way I see it...Even IF they get enough people to do this it does'nt change the fact that the earth's core is LIQUID!
*****Conspiracy Theory Alert*****
Maybe this group is really a government entity in charge of getting the world wide obesity problem solved.
OR maybe it's just some grad students socialogy project. See how many idiots actually believe it will work because they have a fancy counter and some vague facts.

Hmmmmmmm........

Lmao! I'm doing it!

The only obvious thing I see missing is the force of the jump itself under the old 'action reaction'. Besides that, I'm to lazy to click on the calculator.

omg, lol, I am not gonna jump. I dont wanna be tha only retard jumpin out there.

lol thats hilarious.

I'm jumping! What'll be funny is that if any of us actually see someone jumping, we know what it is for. Of course, we'll more than likely forget about this by next year.

Hahaha! Pretty interesting. How about a little math:

Jens Gundlach and Stephen Merkowitz from the University of Washington have found that the Earth
weighs in at 5.972 sextillion (5,972,000,000,000,000,000,000) metric tons
(credit:http://www.abc.net.au/science/news/stories/s122885.htm

Population of the World (2005) 6,462,392,746
From: http://www.census.gov/ipc/www/world.html

If we take the average weight of all humans on the planet to be 150lbs, this totals to: 484,679,455 tons. Say we triple that to reflect the impetus imparted by jumping. So now we have 1454038365 tons. Since 1 ton = 0.90718474 metric tons, we have 1319081416 metric tons.

So the weight of all people on the planet divided by the weight of the planet is the percentage or the earth's weight that all that jumping will move, or .00000000000022087(give or take).

The Earth's orbit stands at approximately 93,000,000 miles from the sun.

So, if everyone on the planet jumps at exactly the right time, theoretically the earth's orbit will change according to the percentage times current distance, or .00000000000022087 X 93,000,000 miles, or .0000205416 miles. That's .108459769 feet, or 1.3 inches. 3 cm.

:lol: So I don't think that they've done their math, or perhaps are overestimating the climatic change brought on by moving the earth (theoretically) 3cm further from the sun.

They also haven't taken into account how that would affect the moon, the international space station,

or, for that matter, Pam Anderson's breasts. :lol2:

-math correction-

OK, so since it's not the day I'm leaving on vacation anymore :crying: I've had time to reflect on the math. The force of everyone jumping is applied not to the distance from earth to sun, but rather to the weight of the earth to see how far it moves.

So in order to take the lbs-ft of energy, we'll say that everyone jumps 3' high. 150 lbs/person X the energy to jump 3ft X 6,462,392,746 (population) gives us 2.90808E+12 lb-ft (2,908,080,000,000) of energy.

When this amount of impetus is applied at precisely the correct angle to move the earth in the optimum direction (everyone's jump is perfect) then the earth will be moved according to the energy applied divided by the mass. So we have 2,908,080,000,000 units of energy applied to a mass of 5,972,000,000,000,000,000,000 metric tons. A quick conversion to English tons gives 6.583E+21
(6,583,000,000,000,000,000,000) tons. Units / Tons = # of feet the earth will move.

Calculating give us: .000000000486952 feet, .(something very small) inches. Less than a millimeter. Even less effective than the (incorrect) initial calculation.

Ah well, let's all jump. Maybe it'll cause earthquakes.

what happens if you and your brother both punch a punching bag at the exact same same with the exact same amount of force on opposite sides? It doesn't move.

what happens if you and your brother both punch a punching bag at the exact same same with the exact same amount of force on opposite sides? It doesn't move.


True, but the energy will be dissipated somewhere. Either by crushing the bag, building heat, or breaking someone's wrist. :evillol:

how is that going to change the orbit of the earth?

Jet is right if anything, it's just going to cancel out and turn out to be nothing but a waste of a minute... :banghead:

The point of my 2nd post is that it won't, really. The website suggests that if we all jump it would move the earth so that global warming would be lessened.

It just won't work, the earth is too heavy to be moved by the current population.

-math correction-

OK, so since it's not the day I'm leaving on vacation anymore :crying: I've had time to reflect on the math. The force of everyone jumping is applied not to the distance from earth to sun, but rather to the weight of the earth to see how far it moves.

So in order to take the lbs-ft of energy, we'll say that everyone jumps 3' high. 150 lbs/person X the energy to jump 3ft X 6,462,392,746 (population) gives us 2.90808E+12 lb-ft (2,908,080,000,000) of energy.

When this amount of impetus is applied at precisely the correct angle to move the earth in the optimum direction (everyone's jump is perfect) then the earth will be moved according to the energy applied divided by the mass. So we have 2,908,080,000,000 units of energy applied to a mass of 5,972,000,000,000,000,000,000 metric tons. A quick conversion to English tons gives 6.583E+21
(6,583,000,000,000,000,000,000) tons. Units / Tons = # of feet the earth will move.

Calculating give us: .000000000486952 feet, .(something very small) inches. Less than a millimeter. Even less effective than the (incorrect) initial calculation.

Ah well, let's all jump. Maybe it'll cause earthquakes.

Whoa I hate math and all of this lost me. Thank you for making me feel stupid. :)

The point of my 2nd post is that it won't, really. The website suggests that if we all jump it would move the earth so that global warming would be lessened.

It just won't work, the earth is too heavy to be moved by the current population.

Then lets start reproducing at a massive rate.

You forget that if all the people will jump several times (they still don't know it). Let's say that 600,000,000 people (where are all the Chinese people?) will move the Earth about a millimeter away. So what happens is that 1km=1000m=100,000cm=1,000,000mm So prepare for one of the best exercises for increasing your vertical leap.

But I've got another idea. What if we load all the Nuclear Weapons and bombs in the Western Hemisphere, evacuate to the South (Pole) and blow it up. It will certainly move the Earth a little bit. Only that the problem with the warming will not be solved...

if you move the earth farther out of it's elliptical orbit, it will pull in that much on the opposite side.

as yogs said, action-reaction. the earth wont even move that <1mm. It's the same idea as if you were to think taht putting a big fan on a sailboat pushing agasint the sail would actaully propel you anywhere.

Yeah, but if you push off of a sailboat, the boat moves the opposite direction. Either that, or they're faking all those "World's Funniest Videos" videos.

It's just that the sailboat in question probably isn't large enough to have sufficient gravity to pull you back.

if you move the earth farther out of it's elliptical orbit, it will pull in that much on the opposite side.

That's probably right, but we need to consult NASA....

if you move the earth farther out of it's elliptical orbit, it will pull in that much on the opposite side.


Yeah, so doesn't that just mean warmer summers and colder winters, or vice-versa? I say we just get like a dozen big ass cranes to lift as much weight as possible and drop that at a certain time, but it still wont make a difference.

Yeah, so doesn't that just mean warmer summers and colder winters, or vice-versa? I say we just get like a dozen big ass cranes to lift as much weight as possible and drop that at a certain time, but it still wont make a difference.
Lifting your own weight and dropping it on yourself....... that's like punching yourself in the face and expecting to send yourself flying into the wall behind you.

This shit wont work, people. Quit being stupid.

Easy now. Nobody is being stupid. Everyones just having fun with a crazy idea on the web.

Lifting your own weight and dropping it on yourself....... that's like punching yourself in the face and expecting to send yourself flying into the wall behind you.

This shit wont work, people. Quit being stupid.

Easy now. Nobody is being stupid. Everyones just having fun with a crazy idea on the web.

Point taken, but this may be a difficult concept for some people, and is worth discussing.

If you take the "Looney Tunes" idea of having a fan blowing your sailboat's sail - well that's a good idea of what you're saying, Jet-Lee and I agree it wouldn't work.

Jumping off a boat that's in the water is different, however. The boat moves in reaction to the energy your legs provide. A simple case of basic physics - for every action there is an equal but opposite reaction.

Now take the larger example of jumping off of the planet. To our perception, the planet doesn't move. But where did the energy of our jump go, if not into moving the planet some infinitesimal amount?

if we jump OFF of the planet (assuming our legs can accelerate us to 7 miles per second) then yeah, the planet will move... a liiiitle bit. But the fact is, all the eneregy we put on the planet by jumping away from it, is returned from gavity pulling us back. And when we smack down on the earth, the earth is smacking us with exactly the same amount of energy that we are it. Therefore, net work done = 0

*edit* seriosuly, and i don't mean this in offense to anybody, but to whomever is having a hard time with this concept, go to your local library and read up on a physics book. It's quite fasciating stuff IMO.

i'm not having a hard time understanding it, but i am SO excited to see YOU guys so excited about it!!!

i dont think everyone jumping would make a difference, though =my uneducated assumption.