1962 - The Soviet Union recruited five women to become cosmonauts. 1963 - June - Valentina Tereshkova, cosmonaut from the USSR, becomes the first woman in space. She flew Vostok 6, orbiting the earth 48 times, and was in space nearly three day.
Scientists think that if we heat a certain body to an infinite temperature, the wavelength is zero !! that is there is no light at all, in other words there is black radiation and the resulting fire resulting from burning this body of the infinite temperature is dark black.
Fuel. Charcoal, commonly known in the pyrotechnic industry as black powder is the most common fuel used in fireworks. Normally, all fuels will contain an organic element such as charcoal or thermite. The mechanism by which the fuel functions in the firework is relatively simple.