Argon, despite making up 1% of the atmosphere, evaded discovery until 1894. Even though the discovery took a long time, Argon was first isolated over 100 years prior in 1785 by Henry Cavendish. Cavendish passes electric sparks through air and hydrogen leaving behind a gas that had 1 percent of its original volume, but was unable to identify or conclude it was a new element. Another encounter before the discovery of Argon was when Hugh Frank Newall and Walter Noel Hartley observed new lines in a spectrum of air that was not associated with any known element. Ultimately it was John Strutt and Sir William Ramsay who formally identified and published the discovery of Argon. These two removed all other gases from air and again saw a gas that was 1 percent of the original volume and had an unknown spectrum and concluded that these were indiciative of a new element. Ramsat was awarded the Nobel prize for chemistry in 1904 for this discovery while Strutt won the Nobel prize for physics that same year.