How LED's work - A light-emitting diode (LED) is a two-lead semiconductor light source. It is a pn-junction diode, which emits light when When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes wi
NYT Cooking: Roasted Salmon Glazed With Brown Sugar and Mustard - We all want to eat more fish. Here's a quick and easy recipe for sweet and savory salmon. Once you try it, we bet you'll add it to your weekly menu rotation.