War, demand, market operation and other factors constantly push up oil prices, and more than 60% of the products in the list of bulk chemical raw materials show an upward trend.
Light-emitting diodes, or LEDs, are the new rock stars of the bulb world. When an LED is switched on, electrons and electron holes come together (and don't worry, I'm not completely sure I fully understand what a "hole" is in this context, either). At any rate, the result of thi...
Light-emitting diodes, or LEDs, are the new rock stars of the bulb world. When an LED is switched on, electrons and electron holes come together (and don't worry, I'm not completely sure I fully understand what a "hole" is in this context, either). At any rate, the result of thi...