Daily Content Archive
(as of Thursday, December 24, 2020)| Word of the Day | |||||||
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hardtack
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| Article of the Day | |
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 The GyroscopeAmong the unusual properties at work in gyroscopes is the resistance of a spinning object to being tilted. If set in a free-moving framework, such an object can provide a stable point of reference even if everything else around it—an airplane, for example—tilts. The effect is so strong that large gyroscopes can even prevent ships from rolling. Today, gyroscopes are used in missile guidance, automatic steering, and video game technology. What toys, besides tops, work with gyroscopic effects? More... | |
| This Day in History | |
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 Christmas Island Discovered by Captain James Cook (1777)Though Captain James Cook was certainly not the first person to set foot on Christmas Island—the atoll had been visited by native Pacific Islanders in the past—it was uninhabited when he found it. Both the UK and US later laid claim to the atoll, and they vied for power there for the next 100 years or so, until it gained independence as part of the 33-island Republic of Kiribati and was renamed Kiritimati. Before it gained independence, the US and UK used the atoll as a testing ground for what? More... | |
| Today's Birthday | |
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 James Prescott Joule (1818)One of the great experimental scientists of the 19th century, Joule is the man for whom the standard mechanical unit of work is named. He was an English physicist who made valuable contributions to the study of heat, electricity, and thermodynamics. His work established the mechanical theory of heat, determined the relationship between heat energy and mechanical energy, and established the first law of thermodynamics. He also applied his intellect to helping operate what family business? More... | |
| Quotation of the Day | |
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 History develops, art stands still.E. M. Forster (1879-1970) | |
| Idiom of the Day | |
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flip (one's) wig— To react to something, good or bad, with strong emotion. More... | |
| Today's Holiday | |
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 Wigilia (2022)Wigilia means "to watch" or "keep vigil" in Polish. It takes place on Christmas Eve and commemorates the vigil that the shepherds kept on the night of Christ's birth, but it's very possible that the celebration goes back to pre-Christian times. Because some people still cling to the ancient belief that wandering spirits roam the land during the darkest days of the year, it is not uncommon for Poles to make an extra effort to be hospitable at Christmas time, leaving out a pan of warm water and a bowl of nuts and fruits for any unexpected visitors. More... | |