Hi guys 👋 this is part 4 of DID YOU KNOW THAT...SCIENCE FACTS!
💡 there are balloons that are filled with healing which is a very like gas instead of hot air.
💡 silicon of normal sand and is the second most abundant element occurring in the earth crust.
💡 the word collector and collection come from the Latin verb collagere which means to collect.
💡 the term radioactivity is derived from the element radium.
💡 Marie curie received the Nobel Prize twice as a researcher of radioactivity in 1903 for physic and in 1911 for chemistry.
💡 the fission of 1 gram of Uranium delicious as much energy as the burning of 2.5 tons of coal 
💡 highly radioactive waste from the nuclear power plant will continue to a mid radiation for Android of yours for this reason it must be stored safely.
💡 only half of the little freshwater present can be used as the other of its present in the form of ice in the polar region and glaciers.
💡 there is no freshwater on the Mediterranean Island of the Malta it is produced their large seawater desalination plant.
💡 unlike an atomic power plant where a child reaction for splitting Uranium is allowed to run in a controlled way in atomic bomb with run at lightning speed and totally out of control the explosion gives rise to temperature of the over 10 million degree Celsius this strong heating creates and immense pressure wave the pressure on the heat wave destroy everything in it's surrounding tense of people where killed immediately when the two American atom bombs were thrown on Hiroshima and Nagasaki on August 6 and august 9 1945 respectively the in famous mushroom cloud rose up to a height of 13 km and about 20 minutes later of radioactive Rain from this cloud on the two cities and number of people have died on developed normalities which are consequences of the radioactivity cost during the explosion.
💡 an atomic bomb being tested in the Nevada desert USA.
💡 plants are always grow towards light apparently they always grow against the force of gravity this was discovered by astronaut who observed the plant in the space shuttle all the plant in the space shuttle made and effort to grow towards light they lost their orientation and the RAM Rio confused wave when kept in a dark at this was because there was no gravity to orient them the same happens to fishes looping way in weightlessness. 
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