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pulsation discuss | |
Definition: | (noun) The rhythmic contraction and expansion of the arteries with each beat of the heart. |
Synonyms: | heartbeat |
Usage: | An icy hand seemed to grasp my heart and check its pulsation, as I bent over him, gazing with breathless intensity upon the ghastly, upturned face. |
![]() ![]() Deadly NightshadeAlthough deadly nightshade, a perennial herbaceous plant that has bell-shaped flowers and shiny black berries, is related to potatoes, tomatoes, and eggplants, it is one of the most toxic plants found in the Western Hemisphere. It contains alkaloids that can cause tachycardia, hallucinations, blurred vision, and, in extreme cases, death. Also known as belladonna, meaning "beautiful lady" in Italian, the plant was once used cosmetically by women to enhance the appearance of what feature? More... Discuss |
KamoseThe final king in a succession of rulers with increasing power, Kamose was the last king of Egypt's seventeenth dynasty. During his brief reign in the middle of the 16th century BCE, Kamose sought to extend his rule beyond Upper Egypt and Middle Egypt into Lower Egypt, which was then controlled by the Hyksos. Kamose launched military campaigns against the Hyksos, the Kushites, and the Nubians, but died in the fifth year of his reign. What happened to Kamose's mummy? More... Discuss |
![]() ![]() Oscar Wilde's Libel Case Begins (1895)When the marquess of Queensbury became convinced that his son, Alfred Douglas, was having an affair with Wilde, he began to rail against the author and playwright, publicly accusing Wilde of sodomy, a crime at the time. At Douglas's urging, Wilde sued the marquess for libel. He not only lost the case, but was in turn charged with homosexual offenses and arrested. Wilde was convicted in an internationally notorious trial and served two years hard labor. What did he write while in prison? More... Discuss |
Original Apple Macintosh Computer Released (1984)Named after the McIntosh variety of apple, the original Macintosh computer was released by Apple Inc. in 1984. Using a graphical user interface and mouse instead of the then-standard command line interface, the "Mac" garnered an immediate, enthusiastic following. However, many software developers shied away from the challenge of rewriting command-driven programs, and there was little software initially available for the new system. How did Apple officially announce the Mac's launch? More... Discuss |
![]() ![]() Henry Robinson Luce (1898)One of the most powerful—and controversial—figures in the history of US journalism, Luce founded Time magazine in 1923 with former Yale classmate Briton Hadden. It was the first news-weekly in the US and is now the largest. Luce went on to launch a number of other highly successful magazines, including Fortune, Life, and Sports Illustrated. What was the estimated value of his share of Time stock at the time of his death? More... Discuss |
Frederick II of Prussia (1712)Frederick the Great was the Hohenzollern King of Prussia from 1740 to 1786 and is regarded as one of the "enlightened despots" of 18th-century Europe. He built his government as a model of efficiency and developed his state into a modern bureaucracy. Frederick was also an excellent military commander and tactician under whose leadership Prussia became a recognized power in Europe. He was well educated and maintained a turbulent friendship with what controversial philosopher and author? More... Discuss |
Reducing Salt Could Save LivesExcessive salt intake is linked to high blood pressure, which can damage arteries and lead to heart disease, stroke, and other health problems. According to researchers, reducing people's salt intake by just 3 grams-or half a teaspoon-a day could prevent as many as 66,000 strokes, 99,000 heart attacks, and 92,000 deaths in the US each year. Furthermore, this salt reduction could save some $24 billion in health costs per year. Policies that would pressure companies to reduce the amount of salt in their processed foods are believed to be vital to reducing consumption, since much of the salt people consume each day is found in these products. More ... Discuss |
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