The Natural Color of Rubber is White

Rubber is made black by adding various chemicals, such as carbon black.  This isn’t just for cosmetic reasons, but because adding chemicals like carbon black to the rubber drastically increases desirable qualities of the rubber.  For instance, with tires, carbon black works as a reinforcing filler in rubber, which increases the durability and strength of the end product. Specifically, adding […]

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December 9th: Pinckney Benton Stewart Pinchback Becomes the First African American to Serve as a Governor of a U.S. State

This Day In History: December 9, 1872 On this day in history, 1872, Pinckney Benton Stewart Pinchback became the first person of African American descent to serve as the governor of a U.S. state.  Pinchback was born the son of a freed slave (African-Cherokee-Welsh-German descent) and her former white owner (Scottish-Irish-Welsh-German descent), who married her.  His father was reasonably well […]

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December 8th: SpaceX Becomes the First Non-Government Entity to Launch a Spacecraft Into Orbit and Recover the Craft

This Day In History: December 8, 2010 On this day just one year ago, SpaceX became the first privately held entity to successfully launch a spacecraft into orbit and then subsequently recover it (they were also the first private company to launch something in orbit with a liquid-fueled vehicle around a year earlier when their Falcon 1 rocket put a […]

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What Causes Leprosy

Today I found out what causes leprosy. Known as Hansen’s Disease, leprosy is caused by a type of bacteria (mycobacterium leprae) that multiplies very slowly. Its incubation period can last up to 20 years and it mainly affects the skin and peripheral nerves. Contrary to the social stigma, leprosy is not highly contagious, and does not cause body parts to […]

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December 5: Prohibition Officially Ends in the United States

This Day In History: December 5, 1933 On this day in history, 1933, Prohibition officially ended when Utah became the 36th state to ratify the 21st Amendment, originally proposed by Congress on February 20, 1933.  Once ratified, this constitutional amendment repealed the 18 Amendment.  The 18th Amendment, passed in 1919, banned the manufacture, sale, and transportation of alcoholic beverages in […]

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American “Buffalo” are Not Actually Buffalo

Today I found out American “buffalo” are not actually buffalo. The American “buffalo” are actually bison.  Specifically, they are “Bison bison”. The only true buffalo are the Asian water buffalo and the African buffalo. The American bison are actually very closely related to the Wisent, which are European bison. American bison are also somewhat closely related to cattle. In fact, […]

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December 4th: The Mary Celeste is Found Completely Abandoned Yet Still Containing All Its Cargo, Plenty of Food and Water, and Still Under Sail. The Crew Were Never Seen Again

This Day In History: December 4, 1872 On this day in 1872, the crew of the British craft Dei Gratia spotted the Mary Celeste (originally named The Amazon before being purchased and rechristened) still under sail, but yawing slightly.  Upon closer inspection, they observed that no members of the crew were on deck.  After several hours of watching from a […]

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December 2nd: The First Man-Made Self Sustainable Nuclear Chain Reaction is Initiated

This Day In History: Dec 2, 1942 On this day in history, at 3:25 pm CST, 1942, as part of the Manhattan Project, famed physicist and Nobel Prize winner Enrico Fermi, the “father of the atomic bomb”, and his team successfully started the word’s first man-made self-sustaining nuclear chain reaction on a racquetball court under the west stands of Stagg […]

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