Int
eresting Cold Knowledge in Daily Life Have you ever heard of the phrase "cold knowledge"? It refers to the little-known facts that are not commonly known in our daily life. And some of these cold knowledge can be quite interesting! Here are some examples:
1. Your Fingers Can Wrinkle in Water Because of an Evolutionary Adaptation You might have noticed that your fingers prune up after being in water for a while. In fact, this is an evolutionary adaptation that helps us grip better in wet conditions. When we are in water, the skin on our fingers contracts, which creates wrinkles. This helps improve our grip in wet conditions, just like the treads on the tires of a car.
2. There is a Reason Why We Say "Bless You" When Someone Sneezes The tradition of saying "bless you" when someone sneezes dates back to ancient Rome, where it was believed that sneezing expelled evil spirits from the body. In the Middle Ages, during the time of the Bubonic plague, a sneeze was seen as the first sign of an illness, and so people would say "bless you" to ward off the disease.
3. The T-Rex is Closer in Time to Us Than It Was to the Stegosaurus The T-Rex lived around 68 to 66 million years ago, while the Stegosaurus lived around 150 million years ago. This means that the T-Rex is closer in time to humans (who have been around for approximately 300,000 years) than it was to the Stegosaurus.
4. The Invention of the Microwave Was an Accident In 1945, an engineer named Percy Spencer was working on a radar system when he noticed that the candy bar in his pocket had melted. He immediately realized that the microwave radiation from the radar system was responsible for the melting, and he began experimenting with it. This led to the invention of the microwave oven.
5. Most Giraffes are Homosexual While homosexuality has been observed in a range of animal species, it is particularly prevalent among male giraffes. Studies have shown that up to 94% of giraffes engage in same-sex activities, and it is believed that this may be due to the scarcity of females in their habitat. These are just a few examples of the cold knowledge that can be found in our daily life. It just goes to show that there is always something new to learn, no matter how small or insignificant it may seem. So, next time you hear an interesting fact or trivia, take note of it, and add it to your collection of cold knowledge.