TDK has demonstrated a fast optical sensor based on a magnetic tunnelling junction - a spin photo detector. he device is ...

Dark matter is a hypothetical substance that outweighs regular matter – which makes stars, planets, and everything we can see ...

Japanese manufacturer TDK has claimed it has achieved a major breakthrough in solving one of the most pressing problems in ...

Here’s a great magnetic levitator build ... That measurement is compared to a second detector mounted slightly lower. The circuit adjusts the electromagnetic field, making sure the object ...

The metal detector part of the project is fairly ... where short pulses are fired through a coil to generate a magnetic field. Once the pulse ends, the coil is used to detect the decaying field ...

Would a dramatic change in the Earth's magnetic field affect creatures that rely on it during migration? Late on a January night in 1993 I found myself on a beach on the Pacific coast of Costa ...

Geophysicist Daniel Lathrop wants, among other things, to use it to predict when the Earth’s magnetic field will next reverse. Over the course of our planet’s history, the field has flipped ...

A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...

Scientists now believe that solar bursts hit the largest planet of our solar system two to three times a month.