Children constantly ask questions, making their parents surf the internet for the answers. However, grown-ups also like to learn new things, though we rarely waste our time answering “how“ and ”why” questions.
Tired Fox found the most interesting answers to the questions about everything at once.
10-Why do we have goose bumps?
It turns out to be an ancient phenomenon acquired from animals. Goose bumps come from the constriction of hair follicles. In the world of animals, this helps them warm up faster. In case of a threat, such a hair state helps an animal look bigger and more massive in front of an enemy. We also get goose bumps in cold weather or in emotional situations. It is the result of a subconscious adrenaline hormone emission.
9-Why don’t we recognize our voice on a recording?
The answer is in the ability of our bones to conduct sound. Your interlocutors hear only the sounds conducted by air. The record also contains only such sounds. At the same time, the way we hear our voices is a combination of the regular sounds and the low-frequency sounds conducted by the bones of our skulls.
8-Why do we get a headache when drinking cold water or eating cold food?
You probably noticed that when eating an ice cream you sometimes get a sharp headache. Or maybe it happens when you breathe in the air while jogging in the park in cold weather. It is connected with quick palate vessels’ constriction or distention as a reaction to low temperatures.
7-Why does our skin get dark and our hair get light under the sun?
In both cases, the sun breaks melanin, responsible for the color of hair and skin. The difference is in the fact that hair is not living, compared to skin. When the pigment is broken, it is not replenished in hair, so the latter gets lighter. Skin “answers” to the sun with a stronger replenishment of melanin, making the color darker.
6-Why does time pass more slowly for a child?
It is probably because a child has to remember more events. Kids are only starting to get acquainted with the surrounding world, and their memory has to collect more data. So a year “contains” more events than that of a grown-up. It is also possible that, when evaluating some situations, we try to correspond them to the time we’ve already lived through. A week for a child is a bigger part of their life than for a grown-up.
5-Why don’t our eyes get cold when it’s freezing?
There are no temperature receptor cells in our eyes. Besides, the biggest part of the eyeball is inside the skull, and it is warmed up by the blood flow inside.
4-Why do we close our eyes when eating a lemon?
We probably got this reflex from our ancestors. Our eyes are closed to prevent the sour lemon juice from getting into them, which might harm the mucous membranes.
3-Why don’t urban pigeons sit in trees?
The pigeons in towns and cities have a natural habit of settling on the rocky landscape, where there are no trees. It means they don’t inherit the sitting reflex. The structure of their limbs gives them an opportunity to sit in trees, but they haven’t got used to such a behavior.
2-Why is dust white against a black backdrop and black against a white one?
Actually, ordinary dust is gray. However, the tiny size of its particles prevents us from seeing its real color. We just spot if the specks are lighter or darker than the background.
1-Why do raccoons rinse their food?
Raccoons often get food from the water and its surroundings, so there can be some ooze and algae that they try to clean off. Another reason is not so cute: this animal might kill its prey this way. Raccoons simply “rinse” the life out of it.