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.
depends on the type or class of fire, and the extinguisher. All fires need four things to burn: fuel (wood, gas, fumes), oxygen, heat, and chain reaction. This is appropriatelâ¦y called the fire tetrahedron. Without one piece the tetrahedron collapses and the fire dies. Class A is burning paper, wood etc.