Unveiling the Why: 60 Eye-Opening Explanations for the Way Things Are 2


26Titanium Osseointegration & Implants

Titanium Osseointegration & Implants

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.

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

28. 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.

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

30. 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.

31Pepto Bismol & Black Tongue, Poop

Pepto Bismol & Black Tongue, Poop

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.

32. 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.

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

34. 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.

35. 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.

36Heat Shock in Pompeii

Heat Shock in Pompeii

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.

37. The reason why bad moonshine can make you go blind is that it may contain methanol, which can cause blindness and brain damage when metabolized into formic acid in the body.

38. The reason why squirrels run across the road and then straight into your car in a suicidal manner is because of their survival instinct to run erratically in order to escape an attack from a predator.

39. The reason why cleaning your ears with Q-tips might trigger a cough reflex is that accidentally stimulating the Arnold's nerve or the vagus nerve can trigger a cough.

40. The reason why the US currency has quarters instead of fifths of a dollar is because it was based on the Spanish Dollar, which had eight reals per peso, or "pieces of eight."

41Cat's Hunting Instincts

Cat's Hunting Instincts

The reason why cats rapidly kick their hind legs while playing with a toy on their backs is that it's a natural instinct to grab and dismember their prey, even if it's just a toy.

42. The reason why we can feel hungry is due to the drop in the level of nutrients in the blood stream, which can trigger a stress response in the brain and lower our inhibitions to different emotions.

43. The reason why cashew nuts are more expensive than most other nuts is due to their toxic shell, which requires special processing to remove and makes the harvesting process more labor-intensive.

44. The reason why very long and straight roads in the U.S. have random curves or zigzags is to counter the optical illusion of a never-ending road that could cause drowsy drivers to fall asleep at the wheel.

45. The reason why men should always leave the bottom button open on a suit jacket is that it is the established fashion convention that dates back to King Edward VII's fashion preferences, who was too fat to button his waistcoat.

46Human Blind Spot

Human Blind Spot

The reason why human eyes have a blind spot is that the optic nerve that carries visual information from the retina to the brain creates a hole in the visual field.

47. One of the reasons why your bank freezes your credit card if you're buying gas is that gas stations are a high-risk location for fraudulent transactions. If thieves can successfully fill up at a gas station with your credit, they know they can make a bigger purchase immediately elsewhere.

48. The reason why hard-boiled eggs smell is because of a reaction between traces of iron in the yolk and sulfur in the white.

49. The reason why you can occasionally receive radio stations from cities far outside their normal broadcast range is because of a weather phenomenon called tropospheric ducting, which allows the radio waves to travel farther by bending them along a layer of the atmosphere.

50. The reason why dogs and cats are unable to ingest chocolate is that it contains theobromine, which their bodies cannot break down as efficiently as humans, and it can be toxic to their health.