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Pepper is sprinkled onto the surface of the water in the left dish; when a droplet of soap is added to that water, the specks of pepper move rapidly outwards. The Marangoni effect (also called the Gibbs–Marangoni effect ) is the mass transfer along an interface between two phases due to a gradient of the surface tension .
Pepper was born in Westminster, London and educated at King's College School. [3] While there he became interested in chemistry, as taught by John Thomas Cooper.Cooper acted as a mentor to Pepper, who went on to become an assistant lecturer at the Grainger School of Medicine at the age of 19.
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Chevreul's early work with animal fats [2] revolutionized soap and candle manufacturing and led to his isolation of the heptadecanoic (margaric), stearic, and oleic fatty acids. In the process, Chevreul became the first scientist to define the concept of a chemical compound and the first to formally characterize the nature of organic compounds ...
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Ethylene glycol ethers are part of brake fluids, detergents, solvents, lacquers, and paints. Ethanolamines are used in the manufacture of soap and detergents and for purification of natural gas. Ethoxylates are reaction products of ethylene oxide with higher alcohols, acids, or amines.
dubitanda: Pepper's jargon for common sense. data: Pepper's jargon for multiplicative corroboration, which simply refers to repeated empirical observation. If two people read a thermometer and agree on the reading, there has been multiplicative corroboration. In layman's terms, we call this data.
Fermilab's disused 15-foot (4.57 m) bubble chamber The first tracks observed in John Wood's 1.5-inch (3.8 cm) liquid hydrogen bubble chamber, in 1954.. A bubble chamber is a vessel filled with a superheated transparent liquid (most often liquid hydrogen) used to detect electrically charged particles moving through it.