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Menno van der pijll

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Dry-cell patent

In 1886, German scientist, Dr. Carl Gassner, was issued a German patent (No. 37,758) for the first "dry" cell, which used zinc as its primary ingredient. He encased the cell chemicals in a sealed zinc container. Gassner's battery was much like the carbon-zinc, general-purpose batteries on the market today. Gassner also patented his invention in Austria, Belgium, England, France and Hungary in the same year. A U.S. patent was issued to Gassner in 1887 (No. 373,064) on 15 Nov 1887. In America, by 1896, the Nation Carbide Company, later Union Carbide and Eveready, produced the first consumer dry cell battery. Two years later, the company made the first D cell. Combined with the invention of incandescent light bulbs, portable electric lights became common.«[Image: The six-inch, 1.5 volt Columbia Dry Cell marketed by NCC in 1896.]

A man went to his dentist beca...

A man went to his dentist because he feels something wrong in his mouth. The dentist examines him and says, "That new upper plate I put in for you six months ago is eroding. What have you been eating?" The man replies, "All I can think of is that about four months ago my wife made some asparagus and put some stuff on it that was delicious - Hollandaise sauce. I loved it so much I now put it on everything --meat, toast, fish, vegtables, everything." "Well," says the dentist, "that's probably the problem. Hollandaise sauce is made with lots of lemon juice, which is highly corrosive. It's eaten away your upper plate. I'll make you a new plate, and this time use chrome." "Why chrome?" asks the patient. To which the dentist replies, "It's simple. Everyone knows that there's no plate like chrome for the Hollandaise!"
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