Troubleshooting your Mac is key before taking it to the Apple Genius bar for assistance.

Knowing how to wipe a Mac and reset it to its factory settings can be a vital step if you're trying to sell or fix it. Here's how to do it.

Abstract: Launch efficiency has always been the focus of reluctance coil launchers research. In a traditional launch mode, the residual current in the drive coil creates a reverse force on the ...