history
used in cars, whipped
cream, dentists, parties
anesthetic
William
James and
others
risks
and
discovered by Priestly in 1775 -The analgesic properties of nitrous oxide have been known since Sir Humphry Davy described the relief he obtained from the discomfort of an infected tooth when he self administered the gas:
"On the day when the inflammation was most troublesome I breathed three large doses of nitrous oxide. The pain always diminished after the first four or five respirations. As the former state of mind returned, the state of the organ returned with it." -