Nitrous oxide Nitrous oxide Nitrous oxide, commonly known as laughing gas or nitrous, is a chemical compound, an oxide of nitrogen with the formula . At room temperature, it is a colourless non-flammable gas, with a slight metallic scent and taste. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen. It is soluble in water. Nitrous oxide has significant medical uses, especially in surgery and dentistry, for its anaesthetic and pain reducing effects. Its name "laughing gas", coined by Humphry Davy, is due to the euphoric effects upon inhaling it, a property that has led to its recreational
The Laughing Cow the laughing cow appearing inside the earrings. It has long been popular in the United Kingdom and Canada as a children's snack. The cheese has also been a constant, but hardly popular, product in the United States for a number of years. However, demand for the triangular wedges has increased significantly recently, since the light version of the product was suggested as a viable menu item to followers of the South Beach Diet. The question asked by the French, ""Pourquoi La Vache Qui Rit rit?"" ("Why is The Laughing Cow laughing?") has become synonymous with the product. Groupe Bel announced