For the bearingless permanent magnet synchronous motor (BPMSM), to improve the sinusoidal degree of air-gap magnetic field, and solve the problem of difficulty in solving the air-gap magnetic field, a ...

One of those investigations involved a distinctive deep dive into studying the interior of the moon.

Here are all the places in the US that you can see the northern lights tonight - The colorful light display is the result of ...

The mass of extremely warm air threw the freezing polar vortex out of balance, shoving it off its North Pole axis so forcefully that it in effect split in two, as if growing a pair of legs: one ...

Beneath the bogs of New Zealand’s Northland is a massive Ngāwhā kauri, living from 41,000 to 42,500 years ago, which gives an isolated, unbroken record of a period when Earth’s magnetic field declined ...