How Turbos Work. The turbocharger has been around for decades, and like its cousin, the supercharger, it is a simple way to increase engine power. Both the supercharger and turbocharger are pumps that stuff air into the cylinder, which, when burned with added fuel, creates greater combustion pressure and more power.
You can define twilight simply as the time of day between daylight and darkness, whether thatâs after sunset, or before sunrise. Itâs a time when the light from the sky appears diffused and often pinkish. The sun is below the horizon, but its rays are scattered by Earthâs atmosphere to create the colors of twilight.
There are three kinds of twilight defined: civil twilight, nautical twilight, and astronomical twilight. For computational purposes, civil twilight begins before sunrise and ends after sunset when the geometric zenith distance of the center of the Sun is 96 degrees - 6 degrees below a horizontal plane. The corresponding solar zenith distances for nautical and astronomical twilight are 102 and 108 degrees, respectively.