There is a device to demonstrate probability. It is a board with a bunch of nails in a pattern. you drop a bunch of parts down it and you get a standard distribution of parts at the bottom. They use it to spread parts onto a conveyor so they are evenly distributed so the process can be controlled. The same thing is used in a pinball machine to make it honest., fair. I made parts dryer with a conveyor belt. It is sweet.

So far, i’ve only seen it in Japan. Have not came across in S’pore yet.

Pachinko is a mixture between slot machine and pinball. The player is quite passive while playing pachinko. He or she is only controlling the speed with which many small steel balls are thrown into the pachinko machine.

Most of the balls just fall down the machine and disappear, but a few find their way into special holes. This activates a kind of slot machine. As in the slot machine, you win if the same three pictures appear. This occurs quite rarely in pachinko, but if it happens, you win countless new balls. When just playing for 500 or 1000 Yen, you may likely just lose all your balls within a few minutes.

Pachinko machines can be found in pachinko parlors which are spread over the whole country. Many parlors also offer a corner with slot machines. One can recognize parlors easily because they are bright and colorful. Inside a parlor it is loud and smoky. Women and men are playing pachinko and it is said that there are even a few pachinko professionals.

If you win balls, you can exchange them into goods that are available in the parlor’s gift shop. But you can also bypass the law that prohibits gambling in Japan by exchanging the balls first into some special goods and then exchange them for cash at a small window just outside the parlor.

We used to have one of those when I was a kid. It’s kinda like pinball, but it has a bunch of little balls. I don’t know, maybe I was playing it wrong, but it was cool.