A chicken taco salad without dressing at one Mexican restaurant chain contains a whopping 1,180 calories. In addition, it provides 75 grams of fat, 79 grams of carbohydrate, 52 grams of protein, 13 grams of fiber, and 2,160 mg of sodium.
Infrared Light. Infrared (IR) light is light with lower frequency (higher wavelength) than visible light. IR light has frequencies ranging from 3*1011 to 4*1014 Hz (300 GHz to 400 THz) and wavelengths from 7.5*10-7 m to 10-3 m (750 nm to 1 mm).
For other uses, see RF (disambiguation). Radio frequency (RF) is any of the electromagnetic wave frequencies that lie in the range extending from around 7003300000000000000â 3 kHz to 7011300000000000000â 300 GHz, which include those frequencies used for communications or radar signals. RF usually refers to electrical rather than mechanical oscillations.