This section will explain the reasons for certain phenomena in science, biology, and much more Why do canned goods go bad? Because of chemical reactions Sterilization kills germs, but the substances that make up the food themselves react with each other and the walls of the banks. Canned food can be stored indefinitely, if only they have a little aggressive substances (eg, acid) and a lot of fat. For example, in 1973, the warehouse of the Russian polar expedition of Eduard toll, founded in 1900, was discovered.all tastings-and the last one was held a year ago — showed that the products are completely suitable for food. However, they were purposely stored in the frozen ground Why do we want to move to the rhythm of the music? To better get a feel for it There is no comprehensive answer to this question. We only know that this reaction to rhythmic music is innate, because it is inherent even in young children who have never seen dance. Apparently, beating the rhythm with his hand or
This section will explain the reasons for certain phenomena in science, biology, and much more
Why do canned goods go bad?
Because of chemical reactions
Sterilization kills germs, but the substances that make up the food themselves react with each other and the walls of the banks. Canned food can be stored indefinitely, if only they have a little aggressive substances (eg, acid) and a lot of fat. For example, in 1973, the warehouse of the Russian polar expedition of Eduard toll, founded in 1900, was discovered.all tastings-and the last one was held a year ago — showed that the products are completely suitable for food. However, they were purposely stored in the frozen ground
Why do we want to move to the rhythm of the music?
To better get a feel for it
There is no comprehensive answer to this question. We only know that this reaction to rhythmic music is innate, because it is inherent even in young children who have never seen dance. Apparently, beating the rhythm with his hand or foot, a person feels it better, or rather, catches its changes. This is consistent with the well-known hypothesis of the Austrian musicologist Richard Valasek, according to which music itself was born as a means of coordinating rhythmic movements, especially the movements of a group of people.
Why does a person grow first milk teeth, and not immediately root?
It's a vertebrate legacy.
Multiple changes of teeth – an ancient trait peculiar to the lower vertebrates, from primitive fish to reptiles. They laid several rows of dental rudiments, and in place of the lost tooth grows a new one. In mammals, the teeth became specialized, complex, firmly seated in the jaw: the loss of even one tooth reduced the ability of the animal. Therefore, in most species of mammals, teeth change only once in life – and at an age when the cub is still in the care of the mother and is little dependent on its dental apparatus. Apparently, having stumbled upon this option of stabilizing the development of the dental system, evolution did not continue to " look for good from good." Although cetaceans, edentates and some rodents have gone further – they have immediately grow permanent teeth.Why does a person grow first milk teeth, and not immediately root?
Why does it prick in side when you run ?
If you feel a stabbing pain in the right or left side while running or walking fast, know: it is pain in the capsule of the liver (if pain in the right side) or spleen (if it stings in the left side).
And there is this pain that's why. At rest, part of the blood does not circulate through the bloodstream, but is in reserve ("in reserve"), and the bulk of the circulating blood is in the thoracic and abdominal cavities. During physical activity in the body there is a redistribution of blood flow in favor of working muscles. But if the muscles begin to work immediately, the autonomic functions that provide their work (breathing and blood circulation), it takes several minutes to work. If we start to move quickly without a preliminary warm-up, the blood from the reserve enters the bloodstream, but it does not have time to quickly flow away from the abdominal organs. The liver and spleen overflow with blood, increase in size and begin to put pressure on their capsules. And the capsules have pain receptors - they give a signal in the form of stabbing pain.
Why does a man's eyes hurt in the water?
From pressure or from salt
The internal fluids of the human body have a salinity of about 0.9%. It is close to the salinity of estuaries and heavily desalinated seas. But just because of this in fresh water salt is quickly washed out of the protective mucus, and creates a fairly high osmotic pressure on the cells of the mucous membrane of the eye. It feels like a sting. In seawater, on the contrary, the mucus loses water, but this loss is partially compensated by the lacrimal glands. Therefore, the pain in the eyes from sea water is usually weaker. And yet water with very high salinity (as, for example, the Dead sea) can cause severe pain in the eyes and even damage them.