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2012 phenomenon – a range of eschatological beliefs that cataclysmic or otherwise transformative events would occur on or around 21 December 2012. This date was regarded as the end-date of a 5,126-year-long cycle in the Mesoamerican Long Count calendar and as such, festivities to commemorate the date took place on 21 December 2012 in the countries that were part of the Maya civilization ...
It is no longer considered credible and there has been much debate about whether the results were fraud or that his data may have been contaminated by stray light from Sirius A. [9] The first "reliable" confirmations of the effect appeared in the 1960s. First reproducible synthetic diamond (1955) Originally reported in Nature in 1955 [10] and ...
By 1997, the term had entered the legal lexicon as seen in an opinion by Supreme Court of the United States Justice John Paul Stevens: [9] An example of 'junk science' that should be excluded under the Daubert standard as too unreliable would be the testimony of a phrenologist who would purport to prove a defendant's future dangerousness based ...
For example, oxygen is necessary for fire. But one cannot assume that everywhere there is oxygen, there is fire. A condition X is sufficient for Y if X, by itself, is enough to bring about Y. For example, riding the bus is a sufficient mode of transportation to get to work.
An example of this transformation is the science of chemistry, which traces its origins to the pseudoscientific or pre-scientific study of alchemy. The vast diversity in pseudosciences further complicates the history of science. Some modern pseudosciences, such as astrology and acupuncture, originated before the scientific era.
Examples have included the deliberate infection of people with deadly or debilitating diseases, exposing people to biological and chemical weapons, human radiation experiments, injecting people with toxic and radioactive chemicals, surgical experiments, interrogation/torture experiments, tests involving mind-altering substances, and a wide ...
Over a 94-year stretch, the average length of 27 confirmed bear markets in the S&P 500 was just 286 calendar days, or 9.5 months, with the longest bear market lasting 630 calendar days (Jan. 11 ...
The life expectancy among adults was much higher; [20] a 21-year-old man in medieval England, for example, could expect to live to the age of 64. [21] [20] However, in various places and eras, life expectancy was noticeably lower. For example, monks often died in their 20s or 30s. [22]