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The thermal conductivity of glass is so small that you can take a glass rod, a red-hot in the middle, the ends, and thus did not even feel the heat. However, it is interesting that a material with high thermal conductivity is not a metal (silver or copper), as many people think. The highest thermal conductivity is a material that is so similar to glass - diamond. The thermal conductivity of diamond is almost 6 times more than silver or copper. Therefore, if someone makes a teaspoon of the diamond, you will not be able to use it because it will burn your fingers at the same moment as the lower spoon in hot tea.

The island of Manhattan (USA) was bought in 1626 by Peter Minuitom from the local Indians for an amount approximately equal to $ 25. At present, the total cost of the island of millions of dollars. However, if Peter put his $ 25 into the pot at 7% per annum, at the present time, he would have received 3.6 trillion US dollars, which is much more than the current value of the island, with all facilities on it. That's what leads adoption of one wrong decision. Mota into their heads, it is useful when purchasing the island :)

As long European fishermen could not catch anyone resembling a young eel life cycle of this creature has been shrouded in mystery for a long time. It was not until 1922, when the Danish professor found that eels that live in Europe, in fact, are born in the Sargasso Sea, and then carry out a long journey together with the waters of the Gulf Stream across the ocean. Only three years later reached England. Another fact: eel blood is extremely toxic, but the toxins are destroyed during cooking eel. That is why you will never find sushi made from raw eel.

Before the US started the construction of the Panama Canal, spent more than two and a half million gallons of kerosene, in the preparatory work. However, the kerosene was used for any machine. It was used to spray the swamps near future construction to destroy the mosquitoes Aedes Aegypti and malarial mosquitoes, vectors of yellow fever and malaria. Deaths from yellow fever and malaria were the main reasons for the failure of the French builders who made their first attempt to build a canal.

Do you know how many colors in the rainbow? It turns out that answer depends on your country of residence. Chinese people believe that in a rainbow of five colors. For US residents typical answer is six colors, while the inhabitants of Russia there are seven of them.

The highest mountain on Earth is not Everest, as is commonly believed. If we measure the height from the top of the crust, the mountain of Mauna Kea is the tallest in the world. Its total height of the earth's crust to the top is more than ten kilometers. However, only 4245 meters above the sea surface are.

We often see the Vikings depicted in helmets with horns. However, this is very misleading, the reason for which will serve as one of the art schools, founded in 1811 to Stockholm. The purpose of this school was the popularization of Norse mythology. They began to depict the Viking helmet with horns, but there is no historical evidence that the ancient Scandinavian warriors wore such helmets. I would like to just mention one fun fact - before the attack for the courage and as a pain reliever, they drank the broth of toadstools. This led to the fact that after the massacre of their break through nedetskiy diarrhea. And all these assholes were red and beards.

All cyclones originated in the northern hemisphere rotate counterclockwise, while cyclones originated in the southern hemisphere rotate clockwise. This is a direct consequence of the Coriolis effect. And what happens when the cyclone crosses the equator? Answer: cyclones never cross the equator, usually they are born near the equator, and then move towards one of the poles.

You probably know that the sun appears above the horizon is much larger than in the zenith. Many people think that this is an atmospheric optical effect. In fact, the size of the Sun does not change during the day, this is an illusion based on the fact that any object looks great next to a straight line than in empty space.

Francis Drake Drake Passage opened, missing past the Strait of Magellan.

At the beginning of the XVII century spoon lengthened several times: she had to adapt to the vogue for much frill protruding. And at the end of the XVII century there were spoons for soup at the end of which was a special kind of plates: while eating with them pushed away the beard from his lips.

Plug in Russia for the first time brought False Dmitry I from Poland in the early XVII century. Her demonstrative use during the feast in the Faceted Chamber on the occasion of the marriage Falsdmitry Marina Mnishek caused uproar nobility and gave rise to conspiracy Shumsky. Fork has played a crucial role in organizing the uprising, as convincingly argued the common people of non-Russian Falsdmitry (Russian instruments is only a spoon).