You've probably heard of a "Black Hole". Black holes form (we think) when big stars burn out, expand, and then collapse. There is so much stuff crammed into such a small space that the gravitational pull is incredible. In fact, the pull is so strong, nothing, not even light can escape from a black hole. Thus the name.
As you approach a black hole, the pull gets stronger and stronger....and there is a place, a line ... >>full
Here's an interesting topic for discussion. Force. What is force and how much of it does your business have in the market?
Let's start with an experiment.
Tie a piece of thread, not string, thread, around a shoe. You can tie the thread to the shoe however you wish. Wrap it around the shoe or tie it to the laces or strap; it doesn't matter. Just tie a piece of thread about 2 feet (no pun ... >>full
Let's start with a simple idea. In physics, we know that all objects with mass have a gravitational pull on other objects with mass. We know that the bigger the mass, the greater the pull. And, the closer to an object you are, the greater that pull.
If you are in a space ship far from earth, earth will exert very little pull on your tiny craft. But as you get closer, earth's gravity will begin ... >>full
