"Most of the external layers of a massive star are removed during the supernova, but some material falls back, making the neutron star spin faster." ...
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The most common rare-earth magnet alloy ... to iron makes a powerful permanent magnet, and how making a powerful magnet without any rare earth is possible, would require a deeper dive into ...
On September 22, the Chinese Academy of Sciences’ Steady High Magnetic Field Laboratory set an impressive record with a resistive magnet sustaining a magnetic field of 42.02 tesla.
Even today, it remains the most powerful permanent magnet in the world. The two researchers — Japanese engineer Masato Sagawa and American metallurgist John Croat — have been awarded the 44th ...
One possibility is that it is a magnetar—a neutron star with a powerful magnetic field that makes Earth's most powerful magnets look like featherweights. Magnetars generate radio pulses through ...