An air speed indicator (ASI) is a device for measuring the forward speed of the aircraft. The ASI uses the aircraft pitot-static system to compare pitot and static pressure and thus determine forward speed.
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The anemometer, the instrument for measuring speed in aeroplanes. Pilots have to promptly know the speed at which they are moving in the mass of air that surrounds the aeroplane and the anemometer is responsible for measuring it. The anemometer, as it is known today, was designed in 1926 by John Patterson.
Q: Why do planes speed up before landing? The airplanes do not increase speed before landing. But when landing gear and flaps are set to landing position, they create a lot of aerodynamic drag. Therefore, engine power is increased to maintain the approach speed.
Whether flying at night or during the day, pilots need to see some kind of horizon. They use this to determine the airplane's attitude. At night pilots will turn their gaze from outside to inside and use the artificial horizon. The artificial horizon is normally a simply globe split into two hemispheres.
A pilot would not get pulled over, of course. But speeding is considered a serious violation of aviation regulations (unless there's an emergency in-flight). Since the ATC is responsible for observing a plane's movement, controllers can issue a pilot deviation if pilots do not follow the control tower's warnings.
On many aircraft types, pilots can open the side windows in the cockpit. The main reason for this is not for ventilation or vision; it is related to aircraft safety law.
Use of visual entertainment such as movies, television programs, video games, etc., is not allowed for a flight crew as they are required to maintain visual scanning outside the aircraft, if able, for situational awareness and collision avoidance.
A lot of airports have restrictions on night flights because of noise issues. Also some smaller domestic airports close at night. There are a few that leave late at night in order to take advantage of the time difference in the arrival city. There aren't more because there isn't much demand for them.
All airplanes will be exposed to drag during flight. They must overcome this aerodynamic force to achieve and maintain lift. Otherwise, airplanes would essentially fall out of the sky. Air brakes are control surfaces that increase drag so that airplanes slow down during flight.