10 questions — 10 answers
Have a question? There is an answer to it! Not only inquisitive children ask questions about the world around them — sometimes I would like to get answers regardless of age and outlook. We present you a dozen questions concerning the most diverse spheres of life, and of course the answers to them.
The prickly exterior of pineapples seems to contradict the very purpose of the existence of this fruit: how can animals get to the sweet pulp that is inside?
The fact is that those pineapples that are sold in stores are actually still quite unripe. Animals living in forests eat pineapples after they ripen. Ripe pineapple becomes soft, it is already easy to open, and then the animals eat it. The prickly outer side is present in the fruits of many plants to protect the fruits until they fully ripen.
Answer: yes, it does. As a result of a medical study conducted in 1983, it was concluded that no matter how quickly the execution is carried out, when a person loses his head, several seconds of pain are inevitable. Even when using the guillotine, which is considered one of the most "humane" means of decapitation, it is impossible to avoid severe pain that will last at least 2-3 seconds.
The mole feeds on worms and other reptiles that penetrate into its underground world. The size of a mole hole depends on how rich in wildlife the land in which the mole lives. Of course, the hole of a mole living under a juicy meadow will be much smaller than the hole that a mole living in acidic soil will dig. In total, an adult mole can dig a hole, the area of which will be more than 7 thousand square meters, by building a multi-level network of tunnels, which can have up to 6 levels. The mole digs a hole deep, with various passages and "storerooms" in which he stores his prey.
Answer: yes, it is. The human eye perceives light colors better, so the outlines of body parts in dark clothes seem smaller in size. The problem is that it only works when you look at the person from behind. When you look at it from the side, the ass shows its true size.
Nettle, when touched to the skin, causes such a strong feeling of discomfort because this plant secretes a mixture of 3 chemicals when the delicate hairs on its leaves are destroyed by contact with human skin. Against burns with these acidic chemicals, which are part of the nettle, it is customary to use such a remedy as applying a sorrel leaf to the affected area of the skin, which releases alkali when it is rubbed against the skin. The effectiveness of this remedy raises questions, some believe that the pain is actually reduced because a cool sorrel leaf cools the skin.
There are about 200 such microorganisms, and 80 in the mouth. Our body is a whole factory for the production of microbes. Every day our body secretes from 100 billion to 100 trillion bacteria. There are up to 10 billion microbes on every square centimeter of the human intestine, up to 10 million on every square centimeter of the skin. Most of the microbes are found on the teeth, in the throat and in the digestive tract, where the concentration of microbes is a thousand times higher than on the surface of the skin. In addition, there are parasites on the human body, such as a follicular mite, which does not harm a person by feeding on dead skin cells. You can't call other parasites harmless. For example, the amoeba Naegleria fowlery penetrates into the human brain and reproduces there until the person dies.
The answer to this question lies in the cellular structure of the apple. When the knife cuts the peel, the apple cells are destroyed, and the air oxidizes the enzymes of this fruit. The process when an apple turns brown is aimed at helping the healing process of cells, as well as making the apple unattractive to animals that would want to eat it. And citric acid, which is contained in lemon, slows down this process of changing the color of the apple slice.
To do this, you would have to become terribly fat. The bullet of the most common caliber -9 mm — is capable of piercing 60 cm of human flesh to a complete stop. In addition, even if the bullet had stuck in the fatty deposits on the body, the bullet blow would have caused serious damage to internal organs, and the person could have died from vascular thrombosis.
Wasps are eaten by birds, skunks, bears, weasels, rats and mice.
Wasps and bees are eaten by birds of 133 species, which avoid the bites of these insects by crushing them against the trunk or branches of trees. Badgers dig out wasp nests and consume their contents for food, despite the obvious displeasure and resistance of the inhabitants of the nests. Wasps are also eaten by dragonflies, frogs, moths and beetles. The larvae of some species of wasps taste good if fried in oil.
Nature invented it, it was just unnoticed until recently. Microorganisms use round disks for movement. Bacteria move with the help of "wheels" — they move by attaching to a "wheel" in the cell membrane. This wheel rotates at a tremendous speed (up to 100 revolutions per second) and generates electricity, which charges the proteins attached to the cell membrane.