# Gravity : All The Best Free Flash Games Relating To Gravity

Everybody knows what it is: it pins us down, planets orbit around the sun thanks to it, and so do stars around a black hole. But the question is how?
As for Newton, gravity is a force that comes into being from the interaction between two masses. The bigger the mass (the Earth), the more it will apply its force on a smaller mass (the apple). Masses attract each other with a proportional force as to each mass, and inversely proportional to the squared distance between them.
This theory is called Newton's law of universal gravitation.

As for Einstein, things are not so easy. Newton's theory is certainly appealing, but some problems occur when the distances become too big. As mentioned above, imagine stars orbit around a black hole, the distance between them is measured in light-years, whereas the force must be instant. This is what Newton describes. To him, time is absolute and does not depend on space, therefore the force of gravity spreads instantaneously.

Therefore to Einstein there is a mistake. To him, nothing goes faster in vacuum than light, thus the action from a distance relying on the simultaneity of two events cannot take place if space and time form a single continuum called space-time. Now that Einstein proved that Newton was wrong, a new theory must be found so as to give tangible explanation of gravity.

He worked on his theory for 8 years and called it the general relativity theory. This new theory gives the following explanation of gravity: time and space are indivisible and â€śeverythingâ€ť is not smooth, space-time forms a curve and all that has a mass will generate a spatiotemporal distortion. In everyday language it means that the matter will create a hole that will be more or less deep depending on the size of the mass in the spatiotemporal geometry, just like when you sit on a comfortable sofa, once you get up you notice a hollow.

Why am I acting like a wise guy, talking about spatiotemporal cuves? Well because to Einstein, gravity is nothing more than a body (the Moon) following the curve due to the distortion of a bigger mass (the Earth). In the end, its theory is crowned with success, no phenomenon contradicts him, life's beautiful to Einstein.
Except that when speaking of particles, its theory is completely intangible. Einstein only focused on big-scale gravity (planets, stars, apples).

You know what an atom is made up of? Well, it's a nucleus of protons and neutrons around which electrons orbit. You can imagine that an atom nucleus mass is ridiculous to create a spatiotemporal curve around which electrons would orbit.

So, how do electrons orbit?
What happens on a particles scale that refutes the entire Einstein theory?

Quantum mechanics answers the question. This theory is at the opposite of Einstein's, but only as referring to infinitesimal. Two theories on two different scales, you can imagine that this makes matters worse to physicists fond of the theory of everything.

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