[Dr. Fortin] teaches physics at a French High School, and to get his students interested in the natural world around them, he built a geomagnetic observatory, able to tell his students if they ...

An accelerometer measures the acceleration of your phone. It does that on three axes: horizontal, vertical, and forward/backward. It also senses vibration, tilt, and free fall. Being able to calculate ...

At this geomagnetic activity level ... knows the characteristics of a CME only when its particles strike the sensors of the DSCOVR and ACE satellites, which orbit Earth about a million miles ...