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Magnetism & HeaT


Ferromagnetism arises when a collection of atomic spins align such that their associated magnetic moments all point in the same direction, yielding a net magnetic moment which is macroscopic in size. The simplest theoretical description of ferromagnetism is called the Ising model. This model was invented by Wilhelm Lenz in 1920: it is named after Ernst Ising, a student of Lenz who chose the model as the subject of his doctoral dissertation in 1925.
Ferromagnetism, anti-ferromagnetism, and paramagnetism and also how temperature affects the magnetic properties
Curie Point and how this can be demonstrated in the lab.
Prof Walter Lewin's lecture

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biological physics

Physical scientists use mathematics to explain what happens in nature. Life scientists want to understand how biological systems work. These systems include molecules, cells, organisms, and ecosystems that are very complex. Biological research in the 21st century involves experiments that produce huge amounts of data. How can biologists even begin to understand this data or predict how these systems might work?
This is where biophysicists come in. Biophysicists are uniquely trained in the quantitative sciences of physics, math, and chemistry and they are able tackle a wide array of topics, ranging from how nerve cells communicate, to how plant cells capture light and transform it into energy, to how changes in the DNA of healthy cells can trigger their transformation into cancer cells, to so many other biological problems.

1 of 5 : how Temperature affects magnetic properties?


2 of 5: the curie point


3 of 5: Dutch astrophysicist and former professor of physics @ MIT

4 of 5: ising model


5 of 5: ising model for biological physics


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