Daily Content Archive
(as of Friday, May 28, 2021)| Word of the Day | |||||||
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multifaceted
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| Article of the Day | |
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![]() Nuclear MedicineA relatively new medical discipline, nuclear medicine is a subspecialty of radiology that utilizes radioactive pharmaceuticals to diagnose and treat diseases. An important component of nuclear medicine is imaging. Whereas imaging technologies like X-rays pass external radiation through the body to form an image, nuclear medicine imaging relies on the detection of radioactive emissions released by radiopharmaceuticals that have been introduced into the body. What is the ALARA principle? More... | |
| This Day in History | |
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![]() NASA Announces Discovery of Ice Deposits on Mars (2002)Launched in April 2001, the Mars Odyssey spacecraft was sent by the US National Aeronautics and Space Administration (NASA) to look for evidence of water on Mars. A little over a year later, NASA announced that water had been detected there in the form of ice, suggesting the possibility of microbial life on the Red Planet. The Phoenix lander confirmed the presence of water in 2008. The presence of what element led NASA researchers to conclude that there was indeed water on Mars? More... | |
| Today's Birthday | |
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![]() Jean Louis Rodolphe Agassiz (1807)Agassiz was a Swiss-born naturalist and geologist. Noticing the presence of huge alpine boulders in areas of Switzerland where there are no glaciers, he hypothesized that glaciers had, at one time, been widespread in the area and had dragged the boulders there. This lent credence to his theory of a recent ice age. He was also a renowned teacher and did notable work with fossils. Agassiz was a lifelong opponent, on religious grounds, of what now-accepted scientific theory? More... | |
| Quotation of the Day | |
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Manners are the happy way of doing things; each once a stroke of genius or of love—now repeated and hardened into usage. They form at last a rich varnish, with which the routine of life is washed, and its details adorned. If they are superficial, so are the dewdrops which give such a depth to the morning meadows.Ralph Waldo Emerson (1803-1882) | |
| Idiom of the Day | |
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mind (one's) manners— To be well behaved and act appropriately. More... | |
| Today's Holiday | |
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![]() Ethiopia National Day (2025)A military junta called the Derg brought an end to the Ethiopian Empire and Haile Selassie's rule on September 12, 1974. The Derg socialist military regime was overthrown by the Ethiopian People's Revolutionary Democratic Front (EPRDF) in 1991, commemorated by the May 28 holiday. A constitution was adopted in 1994 and Ethiopia's first multiparty elections were held in 1995. More... | |




