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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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Washing out the mouth with soap is a traditional form of physical punishment that consists of placing soap, or a similar cleaning agent, inside a person's mouth so that the person will taste it, inducing what most people consider an unpleasant experience.
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.
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Stainless steel soap is a piece of stainless steel, in the form of a soap bar or other hand-held shape. Its purported purpose is to neutralize or reduce strong odors such as those from handling garlic , onion , durian , guava , salami , or fish .
A soap bubble Girl blowing bubbles Many bubbles make foam. A soap bubble (commonly referred to as simply a bubble) is an extremely thin film of soap or detergent and water enclosing air that forms a hollow sphere with an iridescent surface. Soap bubbles usually last for only a few seconds before bursting, either on their own or on contact with ...