The notion that goldfish have a memory of a few seconds is nonsense. In fact, they can be trained to react to light signals and perform tricks…
As opposed to Internet “lore”, many of the “weird similarities” between the Lincoln assassination and the Kennedy assassination are fabricated, “Anatadaephobia”, or the fear that somewhere a duck is watching you, does not exist, and the name of the fear of long words is not “Hippopotomonstrosesquippedaliophobia”.
The first Thanksgiving to occur in the Americas happened in Florida, not Plymouth Rock. It was celebrated by Spanish explorers and Timucua Indians.
In South Korea, it is commonly and incorrectly believed that sleeping in a closed room with an electric fan running can be fatal. According to the Korean government, “In some cases, a fan turned on too long can cause death from suffocation, hypothermia, or fire from overheating.” The Korea Consumer Protection Board issued a consumer safety alert recommending that electric fans be set on timers, direction changed and doors left open. Belief in fan death is common even among knowledgeable medical professionals in Korea. According to Yeon Dong-su, dean of Kwandong University’s medical school, “If it is completely sealed, then in the current of an electric fan, the temperature can drop low enough to cause a person to die of hypothermia.” Whereas an air conditioner transfers heat from the air and cools it, a fan moves air without change of temperature to increase the evaporation of sweat. Leaving a fan running in an unoccupied room will not cool it; in fact, due to energy losses from the motor and viscous dissipation, a fan will slightly heat a room.
A day on Earth actually lasts 23 hours, 56 minutes and 4.1 seconds, not 24 hours as many believe.
The myth that the Great Wall of China can be seen from space originated in 1754.
Until 1999, the Guinness Book of Records repeated the popular misconception that Toronto’s Yonge Street was 1,896 km (1,178 mi) long, and thus the longest street in the world; this was due to a mistaken conflation of Yonge Street with the rest of Ontario’s Highway 11. Yonge Street is in actuality 56 kilometers long.