资讯

In 1873, James Clerk Maxwell's "A Treatise on Electricity and Magnetism" touched on something very significant. "Conjectures of various kinds had been made as to the relation between magnetism and ...
The film describes how electric currents can create magnetic fields, leading to the invention of electromagnets and electric generators. It highlights the principles of electromagnetic induction ...
The world we live in is powered by these electromagnets. Magnetized particles in lava rocks along Earth’s surface record the direction of our planet’s magnetic field. This is how scientists ...
Explore the history and science of magnetism! From magnetite and compasses to Gilbert's discoveries, Oersted's ...
The Indian automotive sector, especially electric vehicle manufacturers, is grappling with a critical shortage of rare earth ...
Often, that more powerful magnetic field is created by electricity. Electricity and magnetism are fundamentally linked, because magnetic fields are generated by the movement of electrical charges.
The astonishing result: "The tiny graphene disks briefly turned into electromagnets," reports HZDR physicist Dr. Stephan Winnerl. "We were able to generate magnetic fields in the range of 0.5 ...
China has delivered the 31 magnet feeders, the multi-lane thruways that will deliver the electricity to power ITER's electromagnets as well as the liquid helium to cool the magnets to -269°C ...
Indian manufacturers seek alternatives to rare earth magnets for electric vehicles due to supply chain challenges and innovation opportunities.
propelled by the repulsive forces between superconducting magnets and electromagnets embedded in the tracks, can achieve remarkable speeds while maintaining energy efficiency. these trains promise ...