Tag: band gap

• Physics in Everyday Life: The Quantum Mechanics and Relativity Running Your Phone, GPS and MRIWorks out the numbers behind three everyday machines: the band gap that sets an LED's color, the 38 microseconds a day GPS clocks gain, and the 5 ppm spin polarization MRI detects.PhysicsPhysics ColumnsHigh school / generalsemiconductorsrelativitynuclear magnetic resonancequantum mechanicsband gap~26 min