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đ Wikipedia links to HN
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- "Wikipedia links to HN" | 2013-09-15 | 125 Upvotes 25 Comments
đ Tomorrow is the shortest day of the year: 23 hours, 59 minutes, 38.7 secs
Solar time is a calculation of the passage of time based on the position of the Sun in the sky. The fundamental unit of solar time is the day. Two types of solar time are apparent solar time (sundial time) and mean solar time (clock time).
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- "Tomorrow is the shortest day of the year: 23 hours, 59 minutes, 38.7 secs" | 2013-09-15 | 119 Upvotes 40 Comments
đ Shot tower
A shot tower is a tower designed for the production of small diameter shot balls by freefall of molten lead, which is then caught in a water basin. The shot is primarily used for projectiles in shotguns, and also for ballast, radiation shielding and other applications where small lead balls are useful.
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- "Shot tower" | 2013-09-12 | 269 Upvotes 79 Comments
đ Micromort
A micromort (from micro- and mortality) is a unit of risk defined as one-in-a-million chance of death. Micromorts can be used to measure riskiness of various day-to-day activities. A microprobability is a one-in-a million chance of some event; thus a micromort is the microprobability of death. The micromort concept was introduced by Ronald A. Howard who pioneered the modern practice of decision analysis.
Micromorts for future activities can only be rough assessments as specific circumstances will always have an impact. However past historical rates of events can be used to provide a ball park, average figure.
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- "Micromort" | 2023-08-26 | 15 Upvotes 3 Comments
- "Micromort" | 2020-06-19 | 152 Upvotes 72 Comments
- "Micromort" | 2013-08-23 | 173 Upvotes 99 Comments
đ Metrecal
Metrecal was a brand of diet foods introduced in the early 1960s. Though its products were criticized for their taste, which newer varieties of flavor tried to improve upon later, it attained a niche in the popular culture of the time. Created and marketed initially by C. Joseph Genster of Mead Johnson & Company, it was eventually replaced in the market by competitors such as SlimFast and lost popularity because it was linked to deaths.
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- "Metrecal" | 2013-08-21 | 25 Upvotes 18 Comments
đ Wikipedia: Size in volumes
This page displays the current size of a hypothetical print edition of the English Wikipedia (without images) in print volumes, per mathematical calculation.
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- "Wikipedia: Size in volumes" | 2013-08-20 | 112 Upvotes 41 Comments
đ Cecilia Payne-Gaposchkin
Cecilia Helena Payne-Gaposchkin (nÊe Payne; (1900-05-10)May 10, 1900 â (1979-12-07)December 7, 1979) was a British-born American astronomer and astrophysicist who proposed in her 1925 doctoral thesis that stars were composed primarily of hydrogen and helium. Her groundbreaking conclusion was initially rejected because it contradicted the scientific wisdom of the time, which held that there were no significant elemental differences between the Sun and Earth. Independent observations eventually proved she was actually correct
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- "Cecilia Payne-Gaposchkin" | 2023-10-16 | 225 Upvotes 98 Comments
- "Cecilia Payne-Gaposchkin" | 2013-08-11 | 38 Upvotes 55 Comments
đ Ted Nelson
Theodor Holm Nelson (born June 17, 1937) is an American pioneer of information technology, philosopher and sociologist. He coined the terms hypertext and hypermedia in 1963 and published them in 1965. Nelson coined the terms transclusion, virtuality, and intertwingularity (in Literary Machines), and teledildonics. According to a 1997 Forbes profile, Nelson "sees himself as a literary romantic, like a Cyrano de Bergerac, or 'the Orson Welles of software.'"
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- "Ted Nelson" | 2013-08-11 | 25 Upvotes 3 Comments
- "The inventor of hypertext" | 2012-09-26 | 7 Upvotes 10 Comments
đ Digital physics
In physics and cosmology, digital physics is a collection of theoretical perspectives based on the premise that the universe is describable by information. It is a form of digital ontology about the physical reality. According to this theory, the universe can be conceived of as either the output of a deterministic or probabilistic computer program, a vast, digital computation device, or mathematically isomorphic to such a device.
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- "Digital physics" | 2013-08-06 | 62 Upvotes 54 Comments
đ Snowden Wikipedia page edited to label him a "traitor" from Senate computer
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- "Snowden Wikipedia page edited to label him a "traitor" from Senate computer" | 2013-08-03 | 145 Upvotes 55 Comments