Daily Content Archive
(as of Sunday, June 23, 2019)| Word of the Day | |||||||
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epigram
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| Article of the Day | |
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 TachyonsAccording to the theory of relativity, particles having nonzero rest mass can approach, but not reach, the speed of light, as their mass would become infinite at that speed. On the other hand, particles with zero rest mass, like photons, always travel at the speed of light. Theorists have argued that nothing in principle prohibits the existence of a third class of particles, named tachyons, whose velocity always exceeds that of light. What effect would a loss of energy have on a tachyon's speed? More... | |
| This Day in History | |
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 College Board Administers the First SAT Exam (1926)The SAT is a standardized test used in college admissions in the US. Developed by Carl Brigham, a Princeton psychologist who worked on the US Army's IQ test, the first Scholastic Aptitude Test was administered in 1926 to over 8,000 test-takers—60% of whom were male. Criticized as being biased toward whites, males, and the middle class, the exam has been modified over the years to improve fairness. Still, its value as a predictor of success in college is debated. What does "SAT" stand for today? More... | |
| Today's Birthday | |
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 Alan Mathison Turing (1912)Turing was a groundbreaking English mathematician and logician who worked on artificial intelligence (AI), among other things. He created the Turing test to determine whether a computer is capable of humanlike thought. His papers on the subject are widely acknowledged as the foundation of research in AI. He also did valuable work in cryptography during WWII, helping to break the German Enigma code. In the midst of his pioneering work, Turing committed suicide after being convicted of what crime? More... | |
| Quotation of the Day | |
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 It takes your enemy and your friend, working together, to hurt you to the heart: the one to slander you and the other to get the news to you.Mark Twain (1835-1910) | |
| Today's Holiday | |
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 Windjammer Days (2020)The annual Windjammer Days Festival in Boothbay Harbor, Maine, celebrates the U.S. Coast Guard's 200 years of service to coastal Maine. The festival is also a salute to the large sailing merchant ships that once carried trade along the New England coast. There is an antique boat parade as well as tours of Navy and Coast Guard ships. Band concerts, seafood, and fireworks add to the merrymaking. More... | |