World Decoded: 50 Facts Explaining Why Things Are the Way They Are

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1Woodpeckers and Brain Heat

Woodpeckers and Brain Heat

In woodpeckers, most of the energy from pecking that reaches the brain is heat, and the reason why woodpeckers peck in short bursts is to let their brain cool off.


2. The Purkinje Effect says that when the lights go down, our eyes become more sensitive to the blue end of the color spectrum. This is the reason why movie theater chairs are usually red: red is the first color we can't see when the lights go down, which makes it easier to see what's on the screen.


3. The reason why coffee makes you poop is because caffeine stimulates muscle contractions in the colon and intestinal muscles, leading to an increase in bowel movements.


4. Gastrodiplomacy, which aims to expand the number of international restaurants featuring a country's cuisine, is one of the main reasons why Thai food became so popular in the early 2000s, as the Thai government actively promoted the country's food.


5. The reason why Bill is a short form of William (Will) and Dick is a short form of Richard (Rick) is due to the popularity of rhyming nicknames in the Middle Ages.


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6Northern Cheyenne and Coal Mining

Northern Cheyenne and Coal Mining

One of the reasons why Northern Cheyenne reservation traditionalists oppose coal mining on the reservation is that the Cheyenne mystic Sweet Medicine prophesied that mining the "black rock" would bring significant negative changes to the tribe.


7. The reason why we dislike the sound of our recorded voice is because we are used to hearing it through the resonance created by our skull, which gives it more bass and depth, making it sound unfamiliar when played back through a recording.


8. The main reason why pigeons are abundant in cities is that this environment resembles their place of origin, the seaside cliffs of the Mediterranean, as modern-day pigeons are descendants of birds that escaped captivity when kept as pets.


9. One of the reasons why Sikhs began carrying a ceremonial dagger called a Kirpan was to defend themselves and others against forced conversions to Islam by Muslim rulers in India during the 1600s.


10. The reason why medicine bottles are often orange or light brown in color is because they prevent ultraviolet light from degrading the contents through photochemical reactions while still allowing enough visible light for the contents to be seen.


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11Dark Olive Oil Bottles

Dark Olive Oil Bottles

The reason why olive oil bottles are dark is because they protect the oil from light exposure, which can cause the oil to degrade and spoil.


12. The primary reason why breakfast is not served all day at McDonald's is because the grill temperature required to cook beef patties is significantly different from the temperature needed to cook eggs.


13. The reason why it hurts to eat pineapple is due to the presence of an enzyme called bromelain, which digests proteins. It literally starts digesting tissues in your mouth, and grilling the fruit can prevent this from happening.


14. Snow is an excellent insulator, as it contains approximately 90-95 percent trapped air, making igloos warmer inside than outside. This is also why animals in colder regions build snow caves for hibernation.


15. Titanium can osseointegrate, which means that it can fuse with bones, and this is one of the reasons why it is used extensively in biomedical implants.


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16Action Figures Shrinkage in 70s

Action Figures Shrinkage in 70s

The reason why action figures shrank from 11 inches in the 1960s to 4 inches in the 1970s was due to the oil shortage.


17. The reason why businesses use "The Big Game" instead of "Super Bowl" in their advertisements is that the NFL owns the trademark to "Super Bowl" and enforces licensing strictly.


18. The reason why caffeine is found in many different plants is because it acts as a naturally occurring insecticide.


19. The reason why 1 horsepower seems small compared to the actual power of a horse is because it factors in the time that a horse needs to rest.


20. The reason why taking Pepto Bismol can cause black tongue and poop is due to the active ingredient, Bismuth, reacting with the trace amounts of sulfur found in saliva and the gastrointestinal tract.


21Left-Side Driving in Britain and Medieval Times

Left-Side Driving in Britain and Medieval Times

The reason why people drive on the left in Britain dates back to medieval times when people walked or rode their horses on the left side to ensure their protective sword arm was between them and the person passing them.


22. One of the main reasons why police use horses is due to the added height they provide, increasing visibility over large crowds and areas.


23. The reason why your singing sounds better in the shower is due to the reflective surfaces of the shower walls and the enclosed space, which create a reverb effect that enhances the sound of your voice.


24. The American cheetah, Miracinonyx trumani, is thought to be the main reason why pronghorn are the fastest mammals in the Western Hemisphere, as they are much faster than any extant predator.


25. Heat shock, caused by the intense heat of Mount Vesuvius' eruption, led to a quick and gruesome death for the people of Pompeii, with the high temperature causing their blood to boil and their skulls to fracture rather than explode.

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