What do you think about nuclear fusion

Impulse Physics 4, textbook

tiny fraction of a second big bang 13.7 billion years 10 replica of the aircraft by Albrecht Berblinger Lotus leaves have a specially structured surface on which dirt does not adhere well. Nanotechnology 1811: Albrecht Berblinger had the dream of gliding through the air like a bird. He put all his fortune into a flying machine, which he demonstrated in front of an audience. Unfortunately, the attempt failed and he plopped like a stone in the river. Mocked by the people, he lived in poverty until his death. Thanks to the lofty dreams of some “weirdos”, airplanes are just as much a part of our everyday lives as televisions, computers and smartphones. Today's technology visions look different: nanomachines and nuclear fusion are two high-tech dreams of our time. Nobody can say whether they will ever be ready for use. If the breakthrough succeeds, the world will change radically. Nanotechnology deals with research and technology development on the atomic and molecular level (see also page 41). Nanotechnology also occurs in nature. The leaves of the lotus plant have a nanostructured surface. Dirt does not adhere well and is easily washed off with water. New seals for glass, paint and smooth surfaces work on the principle of the "lotus effect". The bold idea behind nanomachines is that we build whatever is needed in nanofactories: a house, a car, an apple. Molecule by molecule, atom by atom. What do you think will this ever become a reality? Nuclear fusion In nuclear fusion, two hydrogen atoms (isotopes deuterium or tritium) fuse to form one helium atom. Large amounts of energy are released in the process. The advantage of nuclear fusion would be that one gram of fuel could produce 90,000 kWh of energy, as much as eleven tons of coal. And that without exhaust fumes! The disadvantage, however, is that hydrogen nuclei only fuse under extreme conditions: 15 million degrees Celsius, 100 billion bar pressure. Big Bang and Nuclear Fusion Our world began with a miracle that researchers call the Big Bang. Before that time wasn't time, space wasn't space! Difficult to imagine, do you think so too? Immediately after the “Big Bang”, particles and radiation existed. Space and time, stars and galaxies were created. If the Big Bang theory is correct, then the “birth” of the world took place 13.7 billion years ago. Deuterium at 20 ° C: The gas consists of molecules. Deuterium at 100,000 ° C: A plasma is formed from ions and electrons. Deuterium at 5,000 ° C: The molecules split into atoms. At 15,000,000 ° C: Two hydrogen nuclei fuse to form one helium atom. Energy is released. 100 worksheets f2p8qm For testing purposes only - property of the publisher öbv

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