Like part of a cosmic Russian doll, our universe may be nested inside a black hole that is itself part of a larger universe. In turn, all the black holes found so far in our universe—from the ...

Abstract: This study presents a fully integrated motor drive system capable of full-speed-range operation by employing a rotor angle estimation method based on an enhanced search coil architecture.

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen environmental ...