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 ...

Electrets produce a semi-permanent static electric field, similar to how a magnet produces a magnetic field ... [Jay] 3D printed a simple cylindrical mold and stuck aluminum foil to the outer ...

At the heart of MRI technology is a large, usually cylindrical magnet, ranging in strength ... are a billionth the strength of the earth's magnetic field. “It is like hearing a needle dropping ...

This means that their magnetism is there all the time and cannot be turned on or off as it can with an electromagnet. Converting a magnet to a non-magnet is called demagnetisation. Magnets are ...

How a tokamak works: The electric field induced by a transformer drives a current ... Both reactor types make use of the fact that charged particles react to magnetic forces. Strong magnets in the ...