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The tempest prognosticator, also known as the leech barometer, is a 19th-century invention by George Merryweather in which leeches are used in a barometer. The twelve leeches are kept in small bottles inside the device; when they become agitated by an approaching storm, they attempt to climb out of the bottles and trigger a small hammer which ...
His best-known invention was the Tempest Prognosticator—a weather predicting device also called "The Leech Barometer". [2] It consists of twelve glass bottles containing leeches, which, when disturbed by the atmospheric conditions preceding a storm, climb upwards, triggering a small whalebone hammer which rings a bell. Merryweather referred ...
Perhaps the best known work on tempestarii was an 815 AD piece called "On Hail and Thunder" by a bishop, Agobard of Lyon. Some describe it as a complaint of the irreligious beliefs of his flock, as villagers resented paying tithes to the church, but freely paid a form of insurance against storms to village tempestarii; but, it was also noted, whenever a supposed weathermaker failed to prevent ...
Macrobdella decora is a medium-sized leech, growing between 5 and 8.5 cm (2.0 and 3.3 in) long, and weighing from 1.48 to 3.69 grams (0.052 to 0.130 oz). [1]: 67 [2]: 155 It has a dark green, brown or olive-green back with a line of 20 or so small orange or red dots down the middle, and two corresponding sets of black dots on its sides.
Elon Musk said robots will outnumber humans in about 30 years. All-In Podcast/Getty Images Elon Musk predicted an 80% chance of prosperity and 20% risk of annihilation in the future.
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Any Texas or Texas A&M player has heard the lore of the rivalry between the two schools, a grudge match that dates to 1894. Third-ranked Texas (10-1, 6-1) and No. 20 Texas A&M (8-3, 5-2) meet ...
Malcolm X was assassinated in 1965 when gunmen opened fire while he gave a speech in New York. A new lawsuit accuses the government of conspiracy.