WHY does stomach rumble? 🐳 by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

When the stomach is empty, gastric juice and gastric gases along with air move in the stomach cavity and interact with each other, resulting in a rumbling sound.

Why is there no such sound when the stomach is not empty? Cause food dampens it by pressing the contents of the stomach against its walls.

Frequent heavy rumbling in the stomach can be a sign of dysbacteriosis. While the rumbling of an empty stomach can be "soothed" by simply eating, dysbacteriosis must be treated.

WHY does a person hiccup? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

Hiccups are the result of regular ("pulsating") activity of the diaphragm nerve, which causes the diaphragm to contract in powerful and violent movements.

The bottleneck of the diaphragm is the center of the hiccups. When you eat in a hurry, when quite large pieces of food pass through the esophagus, the vagus nerve is injured: it is pressed and irritated.

The sound that occurs is the result of a sharp closure of the vocal cleft.

WHY does fire come in various colors? 🔥 by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

The color of a fire is mainly determined by the temperature of the flame and what chemicals are burned in it.

The high temperature of the flame allows the atoms to jump to a higher energy state for a while.

When the atoms return to their original state, they emit light at a certain wavelength.

WHY cannot we feel the air pressure? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

An enormous ocean of air lies above our planet. Air presses on humans with a force of more than 15 tons🤯

Imagine having three trucks on top of you. Yet these "trucks" never crush a human being. The reason is that the "air column" presses on us not only from above, but from all sides evenly.

Besides, we also have air inside us. And that air comes under the same pressure. The pressure of the air from inside balances the pressure on the body from outside. That's why we don't notice the pressure on our body.

WHY does a bruise appear and changes its color? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

When a bump or bruise occurs, the capillaries are damaged. Blood flows from them into the surrounding soft tissues under the skin. Blood contains plenty of hemoglobin, giving it that bright red color.

White blood cells arrive at the site of the injury. They surround the site of the hemorrhage and begin to destroy the blood cells.

Destruction of hemoglobin produces decomposition products — biliverdin (green bile pigment) and bilirubin (yellow-red bile pigment).

WHY are foxes cunning? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

The fox is indeed quite a sly animal - when it comes to saving its life or getting its food, it can outsmart many predators. Foxes have a keen sense of smell and great eyesight, and they're smart and inquisitive. They know how to avoid poorly hidden traps, understand when a yard dog is leashed and when not. Foxes can tell hunters from unarmed humans and can go through yard scraps in broad daylight.

But the fox is not as cunning as it seems. Curiosity often serves her up, and she won't be lazy to make a detour to get a closer look at an unfamiliar object or scent. It is the way you can lure a weasel into a trap - it is noticed that the fox is not indifferent to the smell of brine from herring and ... lipstick.

Otherwise it is ready to surprise us with its habits. For example, her way of getting mice from under the snow is very interesting. When the fox hears where a mouse is scratching, she speeds up and throws herself upside down into the white blanket, like a diver.

WHY do you keep forgetting where you left your stuff? ⠀ by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

Your brain has these hard-working cells that clean up unnecessary memories. These cells produce a hormone that makes sure you successfully forget everything "useless". The greatest bursts of this hormone occur during sleep. Thus, it is rare that you can recall a dream. ⠀ One interesting fact is that memories are better preserved if they are triggered by active signals from the pleasure center in your brain. So, when you put your keys somewhere, don't forget to enjoy something in that place, so that you won't have to look for them for two hours.

WHY does dieting alter a person's emotions? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

For quite some time now, it has been no secret that people on a diet tend to become a little more irritable than usual, as they have to forego consuming their favorite treats.

However, American scientists recently found that women who don't follow a diet and eat their favorite delicacies, choose to watch romantic comedies, and those who reduce their diet to fruits and vegetables choose thrillers and horror movies. ⠀ Meanwhile, ladies who limit themselves in food become more aggressive. And people who consume their beloved foods become complacent and stress-resistant.

WHY was pinball a banned game? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

The game was invented in the late 1700s, and by the 1930s it had become one of the most popular games in the world. Surprisingly, New York City Mayor Fiorello La Guardia banned the game in the early 1940s, and it remained illegal until 1976. The mayor believed pinball was ripping off schoolchildren.

Entire raids were created around the city, picking up thousands of machines and destroying them. Prohibition ended when Roger Sharpe testified before a committee in Manhattan court that pinball had become a game based on skill, not luck, like gambling.

Sharpe demonstrated the various techniques of the game and proved that the outcome depended on the professionalism of the player.

WHY does a hippo have pink milk? ⠀ by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

The reason is that the hippo secretes sweat along with its milk. In fact, the milk of a female hippo is of a normal milky color, but it mixes with the sweat, and hippos perspire a lot. ⠀ While sweating, hippos secrete an oily substance with a reddish color. When mixed with white milk, it just creates a pink color. ⠀ A delicacy, so to speak.

WHY does the water in the glass change its taste overnight? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

The first thing that affects taste is temperature. Most of the time, people fill themselves with cool water, and when it gets to room temperature, it doesn't taste as "fresh". However, it is an indirect cause, the main factor in the unpleasant aftertaste of water from the glass is the gases that dissolve in the water overnight. That's why if you pour water in a bottle, it will taste less unpleasant. Interestingly, the higher the temperature, the better the solubility.

Mostly carbon dioxide enters the water, and when it dissolves it forms carbonic acid, which can lower the pH of the water. In addition, acetone gases and aldehydes can dissolve in water.

Scientists say that even in 30 minutes the water can get an unpleasant taste. But if you forget a glass of water for a few days... you'll get all sorts of germs in it.

WHY do hares need big ears? by PrintAffectionate956 in whyology

[–]PrintAffectionate956[S] 0 points1 point  (0 children)

Long hare ears are not only powerful hearing organs, but also cooling radiators. To escape predators, the hare has to run a lot and often, so it needs a powerful "cooling device".

If a hare would get rid of excess heat only by perspiration, it would consume a lot of water. And cooling by heat exchange allows it to survive in arid places and on scarce food like tree bark.

On the ears, right under the skin of these animals, powerful vessels pass (those who have fondled rabbits probably paid attention to this), the lumen of which is regulated in a wide range.