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Erik Rotheim. Erik Andreas Rotheim (19 September 1898 – 18 September 1938) was a Norwegian professional chemical engineer and inventor. He is best known for invention of the first aerosol spray can and valve that could hold and dispense fluids. Erik Rotheim's drawing of an aerosol spray can.
Liquefied petroleum gas. Liquefied petroleum gas, also referred to as liquid petroleum gas ( LPG or LP gas ), is a fuel gas which contains a flammable mixture of hydrocarbon gases, specifically propane, n -butane and isobutane. It can sometimes contain some propylene, butylene, and isobutene. [1] [2] [3]
raid .com. Raid is the brand name of a line of insecticide products produced by S. C. Johnson & Son, first launched in 1956. The initial active ingredient was allethrin, the first synthetic pyrethroid. [1] Raid derivatives aimed at particular invertebrate species can contain other active agents such as the more toxic cyfluthrin which is also a ...
The 2017 Major League Baseball season began on April 2 with three games, including the 2016 World Series champions Chicago Cubs facing off against the St. Louis Cardinals, the regular season ended in late September. The postseason began on October 3. The World Series began October 24 and Game 7 was played on November 1, in which the Houston ...
Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere, and a much larger springtime decrease in stratospheric ozone (the ozone layer) around Earth's polar regions. [1] The latter phenomenon is referred to as the ozone hole.
Sea spray generated by breaking surface waves. Sea spray are aerosol particles formed from the ocean, mostly by ejection into Earth's atmosphere by bursting bubbles at the air-sea interface. [1] Sea spray contains both organic matter and inorganic salts that form sea salt aerosol (SSA). [2] SSA has the ability to form cloud condensation nuclei ...
Sea spray, refers to aerosol particles that form in the ocean. Spraying, or the creation of a spray. Spraying (animal behavior), the action of an animal marking its territory with urine. The use of a spray bottle. The use of a sprayer. Aerial application of chemicals.
