December 5, 2020

How vacuum cleaner works?

Brrrrahhhh! It may sound like a roaring monster, but it’s only a vacuum cleaner doing its dirty work. The noise comes from an electric motor that […]
December 5, 2020

How hairdryer works?

With a hairdryer, we don’t have to wait for our hair to dry. Inside the hairdryer, electricity travels on a pathway of wire. The electricity travels […]
December 5, 2020

How toilet machine works?

You probably don’t think of a toilet as a machine. But that’s what it is. You press down the flush lever, and the toilet does the […]
December 5, 2020

How CD player works?

Cassette tapes sound good when they are new. But after a while, they start to sound scratchy. A compact disc, or CD, produces much better sound. […]