Round The House

Vacuum

A horse and cart were needed to move the first successful vacuum cleaner around.

The first vacuum cleaners worked by opening and closing a bellows with a handle.

An English engineer, Hubert Cecil Booth, invented it in 1902. The first “Hoover” electric vacuum

cleaner was built from a wooden box, an electric fan and an old sank in 1907 in America.

Refrigerator

Early refrigerators, invented in the 19th century, killed many people.

They leaked the poisonous gas that we used to cool them.

In 1929 the gas was changed to a non-poisonous one called freon.

We now know this freon cause damage to planet’s atmosphere, so that is being changed too.

Round The House