It shows how iron filings reveal the magnetic field around a magnet, how charged objects create electric fields that can attract materials, and how gravity creates a gravitational field that pulls ...

Using an XMC1100 microcontroller development board and a TLV49 3D magnetic sensor, the device is able to track the poles of a magnet in real-time and produce an approximation of what the field ...

Magnetic fields can be found near large magnets such as machines using magnetic resonance imaging (MRI's) and nuclear magnetic resonance (NMR's). The health effects of these magnets aren't fully ...

A mysterious menagerie of quantum states — once purely theoretical — has been brought to life by researchers at Columbia ...