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.
Hair color is a matter of chemistry! The first safe commercial hair color was created in 1909 by French chemist Eugene Schuller, using the chemical paraphenylenediamine. Hair coloring is very popular today, with over 75% of women coloring their hair and a growing percentage of men following suit.