The wonder material which could hold the key to near-limitless energy
A rare-earth barium copper oxide (REBCO) is now being used by an Oxfordshire-based company for its superconducting properties ...
Technics AZ100 earbuds hands-on: Magnetic fluid drivers deliver a big audio boost
Technics says the 10mm magnetic fluid drivers inside the AZ100 produce "clean, high-resolution, low-vibration and ...
PBS13 年
What Drives Earth's Magnetic Field?
In the Earth (see image below right), the liquid metal that makes up the outer core passes through a magnetic field, which causes an electric current to flow within the liquid metal. The electric ...