A meter is equal to 100 centimeters. 1 meter = 100 centimeters. The length of this guitar is about 1 meter. Meters can be used to measure the length of a house, or the size of a playground.
Marcel Grateau invented the first Hair Straightener to straighten hair in 1872.
When hair straighteners were invented, they were heated by fire. Nowadays, hair straighteners have temperature control, are powered by electricity, and some have the ability to straighten wet hair. Therefore, the modern-day hair straightener is an innovation.