TSA is updating its carry-on rules in 2025, and if you’re not prepared, it could slow you down at security. In this video, I ...

The CAES system consists of an air motor connected to a 3-phase, permanent magnet AC generator supplying 380 V and 5 A. The connection was made either directly or through a 1:2 or 1:4 speed-up ...

It is also grade school science to show that neither an electromagnet nor a permanent magnet will ... The coil is fed with AC. The magnetic field from the coil induces an opposite field in the ...