Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
Although frequently repeated as fact, a penny dropped from the Empire State Building will not kill a person or crack the sidewalk. Due to terminal velocity the speed of a falling penny cannot exceed 30–50 miles per hour regardless of the distance from which it is dropped, as demonstrated on an episode of Mythbusters.

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
The notion of catharsis holds that frustration and anger should not be bottled up or else a person risks allowing those feelings to accrue and eventually explode in some harmful way. Instead, it recommends that frustration and anger should be released through harmless expression, such as by screaming or punching a pillow. However, experimental psychology has shown that such expression can increase rather than decrease harmful behavior. In one experiment, people who engaged in catharsis (by hitting a punching bag) were significantly more likely to aggress toward a peer shortly afterward than were people who did not engage in catharsis.

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
Photographic or eidetic memory refers to the ability to remember images with extremely high precision – so high as to mimic a camera. However, it is highly unlikely that photographic memory exists, as to date there is no hard scientific evidence that anyone has ever had it. Many people have claimed to have a photographic memory, but those people have been shown to have good memories as a result of mnemonic devices rather than a natural capacity for detailed memory encoding.

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
Marcos Torregrosa wearing a black belt with a red bar. In some martial arts, such as Brazillian Jiu Jitsu and Judo, red belts indicate a higher rank than black. In some cases, a solid red belt is reserved for the founder of the art, and in others, higher degrees of black belts are shown by red stripes.

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
Abner Doubleday did not invent baseball.

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
The black belt in martial arts does not necessarily indicate expert level or mastery. As introduced for judo in the 1880s, it indicates competency of all of the basic techniques of the sport. The first five ranks all have black belts; holders of the third rank can act as local instructors and may be addressed as sensei. Holders of higher ranks in judo and other Asian martial arts are awarded belts with alternating red and white panels (6th to 8th dan), and the very highest ranks with solid red belts (9th and 10th dan).

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
The forbidden fruit mentioned in the Book of Genesis is commonly assumed to be an apple, and is widely depicted as such in Western art, although the Bible does not identify what type of fruit it is. The original Hebrew texts mention only tree and fruit. Early Latin translations use the word mali, which can be taken to mean both "evil" and "apple". German and French artists commonly depict the fruit as an apple from the 12th century onwards, and John Milton's Areopagitica from 1644 explicitly mentions the fruit as an apple. Jewish scholars suggested that the fruit could have been a grape, a fig, wheat, or etrog. Likewise, the Quran speaks only of a forbidden "tree" and does not identify the fruit.

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
Although common conception says that Noah was told in the Book of Genesis to bring two of each animal onto his ark, the book actually contains differing passages about the number of animals he was told to bring; in Genesis 6:19, he is told to bring "two of all living creatures", while in Genesis 7:2 he is told to bring "seven pairs of every kind of clean animal […] and one pair of every kind of unclean animal" – although in some translations (e.g. the New King James Genesis ) this is rendered as seven animals, rather than seven pairs.

Fallacious yet widespread and documented beliefs courtesy of Wikipedia.
The historical Buddha was not obese. The "chubby Buddha" or "laughing Buddha" is a tenth century Chinese folk hero by the name of Budai. In Chinese Buddhist culture, Budai came to be revered as an incarnation of Maitreya, the Bodhisattva who will become a Buddha to restore Buddhism after the teachings of the historical Buddha, Siddhartha Gautama, have passed away.