magnetic

Mars had a long-lasting magnetic field, extending the chances of life

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CHICAGO-Once upon a time, according to scientists, Mars was far from the cold and inhospitable desert of today. Rivers carved out canyons, lakes filled craters, and a magnetic field may have repelled space radiation, preventing it from eating away at atmospheric moisture. As the Martian interior cooled, according to leading theories, its magnetic field died …

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A new type of fractal has been discovered in magnetic ice

A new type of fractal has been discovered in magnetic ice

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Fractal patterns can be found everywhere, from snowflakes to lightning bolts to the jagged edges of coastlines. Beautiful to behold, their repetitive nature can also inspire mathematical insights into the chaos of the physical landscape. A new example of these mathematical quirks has been discovered in a type of magnetic substance known as spin ice, …

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A giant coronal mass ejection burst from the sun toward Venus on Sept. 5, 2022.

A mysterious shock wave from the sun opens a crack in the Earth’s magnetic field

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A mysterious shock wave in a gust of solar wind sent a barrage of high-speed material shattering through Earth’s magnetic field, opening a crack in the magnetosphere. The plasma barrage could lead to a geomagnetic storm today (December 19), according to spaceweather.com. The origins of the shock wave are not exactly known, but scientists believe …

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A dynamic fractal discovered in a clean magnetic crystal

A dynamic fractal discovered in a clean magnetic crystal

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Example of fractal structures in spin ice with a famous fractal example (the Mandelbrot set), above a photograph of water ice. Credit: Jonathan N. Hallén, Cavendish Laboratory, University of Cambridge The nature and properties of the materials are strongly dependent on the dimension. Imagine how different life in a one-dimensional or two-dimensional world would be …

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Covering a cylinder with a magnetic coil triples its energy output during a nuclear fusion test

Covering a cylinder with a magnetic coil triples its energy output during a nuclear fusion test

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(a) Sketch of the magnetized NIF hohlraum constructed from AuTa4 with solenoid coil to carry current. (b) X-ray entrainment measured through one of the LEHs and incident laser powers for magnetized and unmagnetized AuTa4 hohlraum and two unmagnetized Au hohlraums. “BF” refers to “BigFoot”, the name of the previous ignition design. Credit: Physical examination letters …

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