11 scientific answers to stupid questions
Periodically, everyone has unanswered questions. We have made a selection of eleven stupid questions, scientific answers to which will help to clarify and throw nonsense out of your head. You don't have to waste time googling and delving into smart explanations.
The spicy smell of garlic is explained by the content of volatile sulfur compounds. Getting into our body, they form allyl methyl sulfide gas, which is responsible for bad breath. A gas with an unappetizing name is completely not absorbed by the body. Therefore, he leaves our body through breathing.
The smell of garlic from the mouth is not veiled by oral aerosols, chewing gums, rinses or mints. After all, the culprit of ambergris is not in the oral cavity, but much deeper. Whole, non-skimmed milk will help. One glass of which contains a sufficient amount of fats that can destroy a bad-smelling compound.
Current and future owners of high-tech iMac gadgets are wondering what the prefix to the name in the form of a small letter "i" means. It turns out that this is not a Chinese fake, but an abbreviation of the words: informing, individual, inspiration, training.
In English, these words begin with the letter "i". Aplle products are used for inspired implementation of creative projects, individual connection to Internet, informing customers and users, training.
Admiring the paintings of famous artists, we will notice some oddities. For example, the gaze of the famous "Gioconda" is always directed at the viewer, no matter from what angle he looks at the picture. A mystical feeling arises due to the effects of light, shadow and perspective.
Human eyes are three-dimensional. Therefore, the pupils are visible in profile, in three quarters of the face. The human brain tends to compensate for the two-dimensionality of the image in the picture. Due to this, the pupils directed at the viewer seem to "move" after him when the angle of view changes.
Lace-up shoes have a lot of advantages and a single drawback in the form of untied laces. A team of researchers from the University of California, led by Professor Berkeley Oliver, devoted a lot of time to studying the shoe "bow".
Scientists used a special device — an accelerometer that measures the resistance force of the support, which is created during accelerated walking. The accelerated shooting of the video camera recorded the smallest details of the experiment. Measurements of the device showed that the runner's laces are subjected to a pressure of 7 g, which is commensurate with the overloads of the launching spacecraft. Passengers of a taking-off aircraft experience a load of only 1.5 g. In addition, the "bow" moving back and forth is exposed to the force of inertia, which causes the knot to weaken.
Many scientists have studied the phenomenon of walking in circles, which is especially clearly manifested in the dark. The effect does not depend on the surrounding conditions, it manifests itself in an open area, indoors. Researchers have put forward several versions.
Doctors explain this by the asymmetry of the human body. Not seeing a landmark in front of him, a person deviates to one side. According to another version, the effect of walking in circles in the dark can be explained by the dominance of one of the hemispheres of the brain. Scientists have not yet come to a consensus on this issue.
We are often surprised by wild animals that demonstrate the wonders of rock climbing. In fact, there is no miracle here. Mountain goats can only stay on rough rocks, on which there are tiny ledges. A smooth wall is not "on their hooves".
It is thanks to the ingenious device of hooves that mountain goats run on steep cliffs. Narrow and extremely hard hooves can spread very widely. The pads adjacent to them cover the support, creating additional grip. Mountain goats have sharp eyesight, which allows you to notice the most insignificant roughness of the rocky surface.
We have all heard the siren sound of an ambulance, police or firefighters rushing to the rescue more than once. And every time we turn our heads, trying to determine which side is the source of the sound.
The fact is that sirens emit sound at a frequency of 1-3 kHz, which is within the maximum hearing sensitivity. This frequency coincides with the "blind spot" of the human ear, which makes it impossible to determine the source of the sound.
Food allergies most often occur in children. Some experts say that if an allergic reaction persists by the age of five, then it will be alarming in older and even adulthood.
Many factors create favorable conditions for food allergies even before the birth of a child: pregnancy toxicosis, food habits of the expectant mother, allergies in the family. In addition, many allergens penetrate into breast milk, then entering the baby's body. Untimely complementary foods, the wrong choice of foods for complementary foods also often cause allergies in babies.
90% of food allergies are caused by only six products: wheat, whole milk, soy, all kinds of nuts and peanuts. Cow's milk more often than other products causes an allergic reaction in babies. The risk group includes infants who are transferred to artificial feeding early.
Rumbling in the stomach is impossible to control, which can put a person in an awkward situation. The process of digesting food occurs with the help of digestive juices, which are secreted by the stomach and intestines. In addition, the food masses need to be mixed for full digestion. The stomach muscles contract at intervals of one to two hours.
The stomach cannot be called empty, even if there is no food in it. There are always gastric gases, gastric juice and ordinary air, which we often swallow. When the stomach muscles contract, the components interact, causing a rumbling sound.
Artists believe that the eyes perfectly express the emotions of the hero. The good intentions of the character are easier to express with the help of large, shiny eyes. Insidious antiheroes have narrowed eyes. Young characters look at the viewer with big eyes, while old people look at them with small ones. Few people know that the first anime hero with big eyes was Astroboy (1952), who was drawn by Osamu Tezuka. The Japanese artist was guided by the traditions of his Disney colleagues, from whom he borrowed a professional technique with "big eyes".
Each of us saw the inscription on the display "emergency calls only". Although few people know how it works. Mobile communication does not work without a SIM card, because IMSI, TMSI protocols are disabled, there is no encryption. But the request for a voice radio channel, simple call routing are saved. Emergency calls are only possible to emergency situation centers.