Daily Content Archive
(as of Monday, March 5, 2018)| Word of the Day | |||||||
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cavort
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| Daily Grammar Lesson | |
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Question MarksQuestion marks ( ? ) are used to identify sentences that ask a question (technically known as interrogative sentences). What are indirect questions? More... | |
| Article of the Day | |
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 Lipid BilayersAbsolutely essential for all life on Earth, lipid bilayers are a critical component of all biological membranes, including cell membranes. They are composed of two layers of phospholipids—a class of fat-soluble molecules—positioned such that their hydrophilic, or water-absorbing, heads face outward, and their hydrophobic, or water-repelling, tails face inward, blocking entry of water and water-soluble material into the cell. Why is it important that lipid bilayers are asymmetrical? More... | |
| This Day in History | |
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 George Westinghouse Patents the Automatic Air Brake (1872)Prior to the advent of trucking in the early 1900s, rail was the only efficient way to transport goods over land. However, before the 1870s, there was no easy way to quickly stop the extremely heavy freight trains. Brakemen scrambled over the tops of moving cars to activate hand brakes on each one. The system was unreliable, resulting in frequent derailments, and many brakemen were killed or maimed after falling from trains. The air brake solved all of those problems. How did it work? More... | |
| Today's Birthday | |
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 Howard Pyle (1853)Pyle was an American illustrator and writer who specialized in tales of chivalry and adventure for children. He rewrote and realistically illustrated classic tales about figures like Robin Hood and King Arthur, adapting the stories to suit a younger audience. In 1900, he founded an art school, and many of his students went on to become famous illustrators themselves. Today, he is considered the father of American illustration. Which noted Post-Impressionist painter was an admirer of Pyle's work? More... | |
| Quotation of the Day | |
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 The voice of the sea speaks to the soul.Kate Chopin (1851-1904) | |
| Idiom of the Day | |
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find (something) out the hard way— To learn or discover something through personal experience, especially that which is difficult, painful, or unpleasant. Can also be phrased as "find out about something the hard way." More... | |
| Today's Holiday | |
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 Tlacaxipehualiztli (Festival of Xipe Totec) (2020)Among the Aztec Indians of Mexico, Xipe Totec was a god of war. The observance of his festival took place in March according to the Gregorian calendar. Xipe Totec was often referred to as "Our Lord the Flayed One" (or, "the Flayer"), and images of him show the god wearing a human skin. The Festival was an occasion for Aztec warriors to mimic the god. They killed their prisoners of war and removed their skins from their bodies. They would then wear these skins for the entire 20-day month and hold mock battles, after which they would discard the now-rotting skins into caves or bury them. More... | |
| Word Trivia | |
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Today's topic: paint | |