Laughing gas Laughing gas is the colloquial name for the pain-reducing gas nitrous oxide, N2O.
Who was the Cornish inventor who is famous for building a high pressure non-condensing steam engine for general industrial use in 1797, and in 1801 for building a steam car that carried passengers?
The two older brothers of Alfred Nobel, Swedish chemist, engineer, inventor, businessman, and philanthropist, built up an empire called Branobel based on what?
Which is a saying attributed to Lester B. Pearson, 14th Prime Minister of Canada and winner of the Nobel Peace Prize in 1957?
Marie Adolphe Carnot (1839-1920), a French mining engineer and chemist, gave his name to a mineral which is an important source of what?
