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Technological Application of Physics - Coggle Diagram
Technological Application of Physics
Technology
Technology is the application of scientific knowledge for practical purposes.
Usage
Technology is put into practical use to solve problems or invent useful tools. Knowledge of basic physics is central to the creation of new technologies.
Examples
Computer Tablets
Smartphones
Calculators
Electric Cars
The Internet
People who developed technology in the past are
inventors.
Radioactivity
Henri Becquerel
Henri Becquerel was a French physicist and engineer. He discovered radioactivity by accident in 1896. He shared the Nobel Prize in Physics in 193 with Marie and Pierre Curie for their work on the study of radioactivity.
Creation
Placing uranium salts in a drawer next to some photographic film. Later when he went to use the film, he found that it had been exposed (blackened) even tho it hadn't been exposed to light.
He deduced that some type of radiation had come from the uranium, passed through the protective paper around the film and made the plates black. He later called this spontaneous release of radiation from uranium salts
radioactivity.
Nuclear Fission
Nuclear fission is the splitting of a large nucleus into two smaller nuclei with the release of a large amount of energy,
Chain reaction
One neutron causes one nucleus to undergo fission, but it also releases another three neutrons cause further fission of nearby nuclei, producing more neutrons and causing even more fission.
Nuclear Fission in Technology
Atomic Bombs
Nuclear Reactors to make electricity & nuclear weapons.
Submarines
Space Probes
Aircraft Carriers
Impacts of Fission
Scientific Impact
Source of Huge quantities of Energy
Nuclear Fission is a non-renewable source & may be replaced by nuclear fusion.
Societal Impact
Killing of Innocent people from atomic bombs, e.g. Hiroshima
Tensions created between USA & Russia for powerful weapons.
Environmental Impact
Fission reactors produce toxic nuclear waste which is dangerous.
Radioactivity which harms farmland, food and water supply.