Find the number of ways to p...
[1832] Find the number of ways to p... - Find the number of ways to place three black pawns on a chessboard. - #brainteasers #math - Correct Answers: 23 - The first user who solved this task is Neelima Subrahmanyam
BRAIN TEASERS
enter your answer and press button OK

Find the number of ways to p...

Find the number of ways to place three black pawns on a chessboard.
Correct answers: 23
The first user who solved this task is Neelima Subrahmanyam.
#brainteasers #math
Register with your Google Account and start collecting points.
Check your ranking on list.

Palin drom

Where can you watch a horse-faced woman run around like crazy?
A Palin drome
Jokes of the day - Daily updated jokes. New jokes every day.
Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Thomas L. Willson

Born 14 Mar 1860; died 20 Dec 1915 at age 55.Thomas Leopold Willson was a Canadian-American chemist and inventor who discovered a commercial production method for calcium carbide using an electric arc furnace. In 1893, he started a company with John Motley Morehead III in Spray, North Carolina, to try his ideas to obtain aluminium metal from its oxide. On 2 May 1892, he was using an electric arc furnace with coal tar and burnt chalk (lime). An unexpected dark, solid mass was formed. On cooling with water, a gas was given off. This burned with a bright yellow, smoky flame. Analysis showed these were calcium carbide and acetylene. Unlike the earlier method of Wöhler that made calcium carbide in an amorphous form, Willson had a hard, aggregated chrystalline form. He obtained (and defended) patents on his process. He assigned them to the Electro Gas Co. (which became Union Carbide Corp.) His other inventions included gas navigational buoys and electric arc lighting. He established calcium carbide manufacturing in Canada.«
This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.