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Space top was impossible by all known laws of physics. The invention of space top was merely based on a personal  science theory
Animated Photo

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Space Tops are available at eBay for disbelievers to investigate.

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Have you ever been driving on a highway and looked outside the window and wondered why the far away objects appear to be moving slower than nearby objects?

The answer in short is that it depends on the angle which light is entering you eyes. This video explains this phenomena as well as why you have two eyes instead of just one.

Black holes
There are super-stars in galaxies glow called supernova supernova or supernova explosion caused by a supermassive star. Remaining and the instrument at the heart of the star of those stars take to shrink and decay and the final determination so Alnhm entirely depends on its mass. If the mass of the heart of 1.4 such as the mass of the sun, it cools gradually turning this supernova on the white dwarf white awarft form However, if the mass is greater than that, the contraction increase as a result of the forces of Alhazbah and turn into a neutron star neutron star in the neutron star mass of the star is compressed to become a radius of 10 km ...
There is another type of stars are more dramatic end when the star mass is three times the mass of the sun, the downturn remains almost constant until the body becomes infinite in the form of a so-called micro-black hole. In fact, that a black hole is a remnant star Bchdh shrunk under the influence of the forces of self-attractiveness. If you approached the body, such as a spacecraft from the Black Alagafb it falls under the influence of power attract super swallows inside the hole forever. And escape from the black hole needs to speed escape escape high speed as a result of the concentration of mass star in football radius is very small and if what speed to escape reached the speed of light C rays such as visible light emitted from any object can not be exiting and so the body appears to Lions Hence came the label Black hole . And called on the radius embarrassment Rs hurt him speed escape equal to the speed of light name radius Schwarzschild, the surface imaginary football have such a diameter and surrounded the black hole is called the event horizon Event Horizon, which represents the extent that it can be up to him near the hole and you have the hope of escaping it.

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quite confusing

why is newtons second  law not valid in non inertial frames? ans is simple
try it out

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