Ten percent of men are left-handed while only 8 percent of women are left-handed.
During an eclipse of the sun in 1868, spectral lines were located that were attributed to an unknown element that was called "helium," from the Greek word for "sun." Thirty years later, helium was discovered on Earth.
In olden days, barbers also performed as surgeons. Blood-letting, a remedy of the time believed to cure diseases, was one of their main tasks. The red-and-white striped barber pole originally symbolized a bleeding arm swathed in bandages.
A short period of time used to be referred to as a "whipstitch."
