WorldJumpDay

[Jok]

There is a website http://www.worldjumpday.org It says that if 600000000 people jump at the same time, our planet's orbit will be a little bit further from the Sun. I wanna hear a scientific opinion about that? Can it really be true?

[RyanJ]

There is a website http://www.worldjumpday.org[/url'] It says that if 600000000 people jump at the same time, our planet's orbit will be a little bit further from the Sun. I wanna hear a scientific opinion about that? Can it really be true?

 

Pure rubbish Read this

 

The energy needed would be a lot and we would not even get close to enough.

 

Cheers,

 

Ryan Jones

[insane_alien]

net change in momentum would be 0 so no our orbit would remain unchanged. some hypothesize that we would get a minor earth quake from it but it would only be detectable with ultra accurate seismometers. even then it would probably be lost to background noise from natural tremors. the amount of energy released is tiny compared to proper earthquakes and with people jumping all over the world the energy is too spread out to make any sort of effect. there would be no epicenter.

 

Although the amount of coordination and communication required to organizee this is pretty spectacular in itself.

[Janus]

A quick calculation shows that if 600,000,000 million people jumped at the same time, and all in the same direction, the Earth would move a maximium of 0.0000000000000009 of a meter. This maximum displacement would take place about 1/3 of a second after the Jump initiates. The Earth would then move back to its orginal position as the gravitational attraction btween it and the people bring them back together. No amount of jumping will cause any permanent displacement of the Earth.

 

Considering that that Earth already changes its distance from the Sun by almost 12,000 km on a monthly cycle and 4,000,000 km on a yearly cycle, It seems like a lot of effort to go through for sush an unmeasurably small, temporary displacement.

[AzurePhoenix]

Now what might happen if we gathered them all up and squished them into a tight ball and dropped them over... say, the San Andreas fault from four thousand feet?

[RyanJ]

Now what might happen if we gathered them all up and squished them into a tight ball and dropped them over... say, the San Andreas fault from four thousand feet?

 

Not a lot. The ball would either be massive spreading out the force over a large area nullifying its effect or be small and dense - if the latter it would simply pass through the Earth anyway...

 

Cheers,

 

Ryan Jones