This is an introduction slideshow about Plasma and BEC. Hope it helps, and sorry for any errors. Thank you
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Language: en
Added: Oct 03, 2021
Slides: 7 pages
Slide Content
Plasma And BEC
What is Plasma ? A Plasma is an ionized gas. A Plasma is a very good conductor of electricity and is affected by magnetic fields. Plasma, like gases have indefinite shape and indefinite volume. And are less dense than Solids and Liquids. The sun and other stars consist of plasma . Plasma is also found naturally in lightning and the northern and southern lights. Human-made plasma is found in fluorescent lights, plasma TV screens, and plasma spheres.
How Plasma is Formed A plasma is created when one or more electrons are torn free from an atom. A plasma is generally a mix of these positively charged ions and negatively charged electrons. Most plasmas are created when extra energy is added to a gas, knocking electrons free from atoms. High temperatures often cause plasmas to form.
Discovery of Plasma Plasma was first identified in laboratory by Sir William Crookes. Crookes presented a lecture on what he called "radiant matter" to the British Association for the Advancement of Science, in Sheffield, on Friday, 22 August 1879. He used “ Crookes tube”, an experimental electrical discharge tube in which air is ionized by the application of a high voltage through a voltage coil.
What is BEC ? The fifth state of matter , known as a Bose-Einstein condensate ( BEC ), has been created in the microgravity of the International Space Station for the first time. Bose-Einstein Condensate (BEC), a state of matter which is formed by cooling gas to an extremely low density, about one hundred thousandth the density of normal air, to super low temperatures. This exotic and rare form of matter is only produced when a gas of boson-like particles is cooled to temperatures just above absolute zero (about -459.67F). One application for BEC is for the building of so-called atom lasers, which could have applications ranging from atomic-scale lithography to measurement and detection of gravitational fields.
Discovery of BEC Bose-Einstein condensates were first predicted theoretically by Satyendra Nath Bose (1894-1974), an Indian physicist who also discovered the subatomic particle named for him, the boson. Bose was working on statistical problems in quantum mechanics, and sent his ideas to Albert Einstein. It looks like a dense little lump in the bottom of the magnetic trap/bowl; kind of like a drop of water condensing out of damp air onto a cold bowl.