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Caffenol is a photographic alternative process whereby phenols, sodium carbonate and optionally vitamin C are used in aqueous solution as a film and print photographic developer. [ 1 ] [ 2 ] Other basic (as opposed to acidic ) chemicals can be used in place of sodium carbonate; however, sodium carbonate is the most common.
Instant coffee is one of the ingredients in Caffenol, [14] a home-made, non-toxic black-and-white photographic developer. The other ingredients in the basic formula are ascorbic acid (vitamin C) and anhydrous sodium carbonate; some recipes also include potassium bromide as a fog-reducing agent. The active ingredient appears to be caffeic acid.
John Stith Pemberton (July 8, 1831 – August 16, 1888) was an American pharmacist and Confederate States Army veteran who is best known as the inventor of Coca-Cola.On May 8, 1886, he developed an early version of a beverage that would later become Coca-Cola, but sold the rights to the drink shortly before his death in 1888.
This list of African-American inventors and scientists documents many of the African-Americans who have invented a multitude of items or made discoveries in the course of their lives. These have ranged from practical everyday devices to applications and scientific discoveries in diverse fields, including physics, biology, math, and medicine.
Ermal Cleon "Ernie" Fraze [1] (September 16, 1913 – October 26, 1989) was an American engineer who invented the pull-tab opener used in beverage cans. [1] Early life
The combination was first introduced as the name Trigesic, as the formula of 125 mg paracetamol, 230 mg aspirin, and 30 mg caffeine, in July 1950 by Squibb, which is now Bristol Myers Squibb, but was recalled in the following year due to several reports that the drug might cause blood dyscrasia. [5]
Circa 1890, he dropped out of the University of Maryland School of Medicine, owing to his father's business going bankrupt. After returning to North Carolina, he was a public school teacher for about a year, and soon thereafter opened a drug store in New Bern named the "Bradham Drug Company" that, like many other drug stores of the time, also housed a soda fountain.
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