Asteroids

Although it was posted on facebook, I just want to post it here again :).

Have you ever heard of “2 becomes 1”?
Have you ever wondered why there’re at least 2 of something instead of 1?
Have you ever wondered why asteroids crash each other?

From the economics view, it’s virtually impossible to have a monopolist but a bunch of oligopolists is not far from imagination.
From the practical world, there must be at least 2 so that they can both complete one another.

Asteroids are the same as other things. They are never alone. Therefore, the chance one of them hit one another is enormous that it may happen everyday and even thousands of times a day. To see what’s gonna happen when they hit, assumptions about their sizes must be made. The 3 simple situations are: they’re both small, both medium and both big.
1. If they’re too small, they hit and go. Scratches between the two may be viable but the crash isn’t.
2. If they’re at the medium sizes, they hit and their surface breaks down. They may pull together or push each other away. It depends on the surroundings.
3. If they’re too big, they hit and stick there for a while. They crush one another step by step. One may have enough energy to move through its “sticky partner”, leaving a shattered asteroid. They may also be both shattered or hit by the others and hence pulled away.