Mayuresh Rouass (CIRCULATING PROCESS INSPECTOR)

If we do not reduce friction, there are many problems for machines. The parts that are moving will rub together very hard. This will make so much heat. Sometimes, the machine gets too hot and can even stop working. This is very bad.

Also, the parts will get damaged. They will wear out very fast because of the rubbing. You will have to change the parts again and again. This costs more money.

The machine also becomes very slow. It needs more power, like more petrol or more electricity, to do the same job. So much energy is wasted just fighting the friction. So, it is not efficient. For a machine to work smooth and for long time, we must reduce friction.

It's a law thing in Japan, mate. They have a very old law. I think it is Article 175. This law says you cannot sell or show "obscene" things. Because of this, they must cover the genitals. That is why you always see the blur or mosaic on the screen. It is a bit strange, yeah? But all adult videos made in Japan must follow this rule. It is just how it is there.