Gravity is a force that attracts two objects. Many people think of Sir Isaac Newton and how he watched an apple fall from a tree when we think of gravity. Gravity does not just relate to falling objects, but is also a force that pulls and keeps objects where they belong....
How does the strong nuclear force vary with distance? How does the strong nuclear force stabilize the nucleus? Does strong nuclear force depend on mass? How does the weak nuclear force increase nuclear stability? How much stronger is the strong nuclear force than gravity?
*Shocking historical claims of government secrecy and hidden research* *The TRUTH behind so-called "anti-gravity devices" and why they're not what they seem* *Mind-bending physics concepts like negative energy, the Casimir Effect, and black holes* *Could a unified field theory be the key to...
This question is sort of interesting. There are two competing phenomena. One is the increased frequency of a pendulum with gravity and the other is the time dilation of such a pendulum as seen by a distant observer. Let us look at the surface gravity. The Schwarzschild metric has the Killin...
I don’t understand why dark energy gets stronger, over time. (It seems like it’s a repulsive force.) My problem with that is that it means that there is more energy in the system as time goes by. How can a force get ...
This occurs as a result of the planet's gravity, and also because of the effects of its magnetic field. Now, if material from Saturn's rings is being lost and nothing new is added from time to time, the rings would be disappearing. But that's not happening! So somehow, there must ...
A spinning trough of water. Gravity points down and is constant, while the centrifugal force points out and increases with distance. The surface of the water is always perpendicular to the combined...
One way to see that qualitatively is the thought experiment of the center of gravitational attraction of a disk as measured outside the disk, but in the plane of the disk. Since gravity falls off with the inverse square of distance the center of gravitational attraction will...
Perhaps a crystal structure with electronic advantage that can only form in low gravity. Or a new porous material. Something, useful and expensive. Wanted. Needed. OR….. a mysterious radio signal that can only be heard on the far side of the moon. If there was, we would have several ...
If you are OUTSIDE something, it doesn't matter how much you shrink or expand it, the force of gravity stays the same (this is the conclusion I came from with my point-summing program). If you are INSIDE something (see: star to black hole) the force WILL get stronger as it shrinks...