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Karan Gupta

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134. Michael Dela Torre Lascuña 37
135. Tanesha Lindsey 37
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137. Mark Shanteau 35
138. Watermelon Cat 35
last 3 solved tasks
NUMBERMANIA: Calculate the number 1027 using numbers [9, 1, 3, 4, 90, 939] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
If c9c07 - ca8bb = a3a1 find number abc. Multiple solutions may exist.
NUMBERMANIA: Calculate the number 5031 using numbers [6, 7, 4, 2, 18, 727] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Herbert Henry Dow

Died 15 Oct 1930 at age 64 (born 26 Feb 1866).[mp] who was a pioneer in the American chemical industry and founded the Dow Chemical Company (1896). Dow developed and patented an entirely new electrolytic method for extracting bromine from the prehistoric brine trapped underground at Midland, Mich. and in 1890 organized the Midland Chemical Company. The Dow process was remarkable in that it did not result in a salt by-product, that it operated on comparatively little fuel and it was the first commercially successful use of the direct-current generator in the American chemical industry. He next developed the electrolysis of sodium chloride in order to yield sodium hydroxide (caustic soda) and chlorine for bleaching powder. In 1916, Dow extracted magnesium, a very lightweight metal from brine, and quickly saw its importance as a structural metal. His first patent was issued in 1889. By 1933 he had over 90 patents. His diverse inventions included electric light carbons, steam and internal combustion engines, automatic furnace controls, and water seals, though most of his inventions were chemical in nature.

Bill, Jim, and Scott were at a...

Bill, Jim, and Scott were at a convention together and were sharing a large suite on the top of a 75-story skyscraper. After a long day of meetings they were shocked to hear that the elevators in their hotel were broken and they would have to climb 75 flights of stairs to get to their room. Bill said to Jim and Scott, let's break the monotony of this unpleasant task by concentrating on something interesting. I'll tell jokes for 25 flights, and Jim can sing songs for 25 flights, and Scott can tell sad stories the rest of the way. At the 26th floor Bill stopped telling jokes and Jim began to sing. At the 51st floor Jim stopped singing and Scott began to tell sad stories. "I will tell my saddest story first," he said. "I left the room key in the car!"
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