Emergency An emergency is a situation that poses an immediate threat to human life or serious damage to property or environment. A false report of an emergency is usually a crime.
Landing When the flying object returns to water, the process is called alighting , although it is commonly called "landing" as well. Hitting the ground too hard is prevented by wings including rotor win..
Video Video can be recorded and transmitted in various physical media: in celluloid film when recorded by Movie camera mechanical cameras, in PAL or NTSC electric signals when recorded by video cameras, or ..