The Earth’s magnetic field is why we are here today. ... It is a sphere, and it is rotating at an incredible speed. The core is very complex, ...

11 thoughts on “ Rotating Magnetic Fields, Explained ” Paul says: November 12, 2020 at 8:08 pm Uh oh. Here they come. You’ve triggered the RodinOverunityTelsa wingnuts. Take cover. ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Why are magnetic fields rare in massive stars and in close pairs? As far as I know, all stars have rotating plasma interiors, so they should all have magnetic fields.

Rotating the magnetic field at specific speeds separates only particles of certain sizes, meaning pathogens attached to those particles would be separated from the sample by varying the rotation ...

October 29, 2007 . New system would use rotating magnetic field to detect pathogens WEST LAFAYETTE, Ind. - Researchers at Purdue and Duke universities have developed a technique that uses a magnetic ...

The skin depth at 1 kHz is about 2mm, so if spun fast enough it should create a repelling field, without the need for casting, it seems to me. Perhaps just a cylindrical copper mesh cage would be ...

Researchers have constructed a 30-ton sphere that spins at more than 90 mph to generate magnetic fields. The 10-ft.-dia. sphere is filled with 13.5 tons of liquid sodium to mimic the Earths liquid ...

The device uses a 2-µm diameter magnetic sphere that is rotated in a liquid by an external magnetic field. The sphere is coated with antibodies that grab hold of certain bacteria. Asynchronous ...

Geophysicist Daniel Lathrop wants, among other things, to use it to predict when the Earth’s magnetic field will next reverse. ... With the sphere spinning at 45 miles per hour, ...