10 responses to children's "Who Knows?", By which the brain explodes

Children look at the world differently. Their curious eyes nothing is hidden: they are interested in everything. Children ask tricky questions and want to get the answers. But sometimes they put us into a dead end.

< Website has collected the top 10 "pochemuchek" and responded to popular questions children.



Why boils water?



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When heated water the water molecules begin to move from this fever. Jostling among the particles increases, the intervals between them are growing, and there comes a moment when the attraction between molecules is not enough to keep them together. Then they disappear and are removed from each other. So get water vapor: with increasing temperature enhanced the movement of particles and soar




why the plane did not fall.?





For example, "747" weighs 162 tons and is not falling. Crash he did not give lifts, air flow goes around the top and bottom of the wings and pushes the plane upwards. Because of the high air speed of the aircraft under it becomes dense and holds it in the sky.




Why is snow white?





Separately snowflakes transparent and transmit light. But when a lot of them - the whole drifts - the light is refracted in the thick snowflakes and reflected from them. The reflected light we see white, because the sun is too white, not yellow, it seems to us because of the atmosphere.




Why the hair does not come in blue?





In the hair dye, there are two that are responsible for black, brown, yellow and red colors. Also in the hair it has air bubbles. From the mixing of colors and number of bubbles depends on the color. Blue and Green still can not get by mixing dyes.




Why weightlessness in space?





Astronauts on board the ISS float not because in space there is no gravity. It is and keeps objects in orbit. Weightlessness occurs because the astronauts are constantly falling in a circular orbit with an orbital velocity 7, 9 km / s. If we have fallen down in the elevator with the highest skyscraper, he would have felt the weightlessness and floated inside.




Why is the sky blue?





sun light is diffused in the atmosphere. White light is refracted and falls into seven colors of the rainbow. The blue color dissipates most of all, so the blue sky. Due to the fact that the blue color mixed with the rest of the sky is not pure blue color.




What is fog?





Mist - This fine water droplets or small ice lenses, hanging close to the ground. When the cold air comes into contact with the warm ground, or the warm air with the cold ground, the particles are formed of water vapor or ice, which are collected in the cloud, and all shrouded veil.




Why water does not burn ?





The water formed by the oxidation of hydrogen with oxygen to produce heat. As water gives off heat, it no longer burns in vivo.





Why do clocks go clockwise, but do not mind?





Sundial invented in the Northern Hemisphere, where the shadow of the gnomon as the motion of the sun creeps in this direction. When invented the mechanical clock, the usual arrangement of the numbers on the dial preserved.




Why circular wheel?





Wheel round, because it is more convenient to just roll on a flat road. All points of the wheel rim are at equal distances from the axis. Therefore, when driving on a flat surface axis remains at a constant height and the vehicle / wagon does not shake. Ironically, if the road surface was "like an accordion", then it was easier to ride on the wheels square shape.





By the way, just brilliant to the last question answered student 2nd class Tarusov Dmitry in his research work. The boy, like a real scientist hypothesized conducted an experiment and assembled cars from LEGO with different types of wheels, to find out why the wheel of such form.

The world is full of amazing things, find out where you can, even if you are 8 years old. And we should learn from the boy's curiosity and continue to learn new things.



Photos on the preview: Julia Konstantin / Shatterstock





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via www.ozon.ru/context/detail/id/4544319/