What are some interesting science facts and/or physics interactions?

An interesting physics interaction: If you are into cam design or performance engine development, a thing to remember is that its not peak horsepower that counts most; vehicle acceleration is based on "area under the torque curve". This is especially evident in road race cars, short track racers and drag racers.
My Bracket drag car had a converter stall speed of ~5000 RPM, I shifted into second and then third at around 7600 rpm and crossed the finish line at around 7800 rpm. The torque curve in that RPM range is what got me my E.T. and peak speed numbers. This was after a lot of experimentation. I don't even know what the peak H.P. RPM was, although I suspect it was around 7700 RPM. Horsepower numbers are interesting, but they are not what really counts when it comes to overall vehicle acceleration.

Crows Understand Analogies

What are the best tricks in chess?

Hello. The easiest chess tactic to learn is distraction. Basically you find a chess piece, which is overworked( an overworked chess piece is the only object defending two or more chess pieces, ranks, or files) and distract the overworked chess piece from defending at least one of his defendants. Distraction is the best and easiest tactic in chess.

How many satellites are there around the world?

About 6,600 have been launched. About 3,600 remain in orbit. Of those, about 1,000 are still functioning.Those figures include only payloads deliberately placed in orbit, not discarded boosters and fairings and other pieces of wreckage and debris.

What if our sun became a cube?

It would be impossible for the sun to become a square because there is no gravity that could be any where strong enough to change the shape of the sun because a square is a shape that would be completely unstable and could not be sustainable and wouldn't last long before