What would happen if 7 billion people jumped at once??

If the whole population jumped at once, nothing amazing would happen. The Earth would be completely fine. The Earth would continue to rotate on its axis at 1,000 mph and we would still continue to rotate around the Sun at 67,000 mph. If all the people on the Earth jumped at once at one central location, it would not be nearly enough force to knock the Earth off its orbit or disrupt its rotation on its axis. Our collective mass is an awful lot—just not compared to the mass of the Earth.

Image result for everyone jumping at the same time

However, some other interesting things might happen. For example, if everyone on the Earth decided to come to T.F. Green Airport and jump at once, there would be a loud bang at an astounding 200 decibels. For context, a jet engine produces 150 decibels of sound at takeoff, and our pain threshold is at 120 decibels

In addition, since T.F. Green is near the coast, there is a change that there could be a tsunami. There would more than likely be a large scale upper-crust earthquake. The ground would begin to shake, and it could trigger a tsunami with 100-feet-tall waves if we were close enough to the coast.

The shaking could also lead to an earthquake falling in the 4-8 magnitude range. That means it could be anywhere from a light shake to one that could cause some major destruction. It's very hard to calculate a hypothetical situation like this.

*VSauce covered this topic in more detail. Check out the video below to dive in-depth into this interesting concept.

Comments

Physics of Black Holes...Or Lack Thereof

Isabella Jacavone To comprehend how the universe works, we must dwell into the most basic building blocks of existence; matter, energy, space, and time. NASA's Physics of the Cosmos program involves cosmology, astrophysics, and fundamental physics intended to answer questions about the elusiveness of complex concepts such as black holes, neutron stars, dark energy, and gravitational waves. In this blog post, I'd like to elaborate on a subject that is very intriguing to me; Black holes. And more specifically, what would happen if we got near one. A black hole is anything but a hole, but rather an immense amount of matter compacted into an extremely small area. A black hole is caused when, hypothetically, a star four times more massive than our sun collapses into a sphere no bigger than 600 square km. To put that in perspective, that's about the size of New York City. B lack holes were predicted by Einstein's theory of general relativity, which showed that when a...

Physics of Sound Dampeners and Active Noise Cancellation

Physics of Sound Dampeners and Active Noise Cancellation Sound dampening foam panels in a recording studio. ANC headphones worn by pilots and/or passengers in consumer aviation aircraft. Acoustic treatment of soundscapes has grown alongside the sound production industry. Whether through absorption panels, diffusors and cloud panels to treat a space or headphones placed directly over the ears of listeners, acoustic treatment comes in many forms. Environments are treated acoustically to absorb excess sound to prevent sound levels from crossing a threshold above which the desired goal cannot be had. Before getting into sound dampening, we must discuss sound. Sound is produced when an object vibrates (a form of oscillation) and temporarily displaces nearby air molecules causing a wave effect as the displaced molecules collide with their neighboring molecules. Sound waves are fluctuations in pressure as the initial displacement of molecules experiences collisions that in ...

The Physics Behind Paper Airplanes

For years, people have been constructing paper airplanes. With almost endless possibilities on how to fold the plane, how should one decide on what folds are going to make his or her plane fly the farthest? Well, a paper airplane's flight is dependent on 4 major factors: thrust, drag, lift, and gravity. - The thrust a paper airplane has is dependent on the throw. Thrust is the initial force that the thrower applies to the paper airplane. Even the best of paper airplanes has no chance of going anywhere if the throw is horrible. - The drag is the air equivalent to friction. Drag is the air that pushes on the plane as it is flying, slowing it down. Drag is affected my the surface area of the plane. A plane that is larger will have more drag affecting it and pushing back on it harder. - The lift component of a paper airplanes flight deals entirely with the plane's wings. Air moving over and under the plane's wings provides un upward lift force, keeping the plane in the ...

LSA E Mech 2017-18

Search This Blog