Crosswind
A crosswind is any wind that has a perpendicular component to the line or direction of travel. This affects the aerodynamics of many forms of tr…
Age
Traffic lights
By means of light signals, traffic lights control the crossing of an intersection, the access to bridges, tunnels and railway crossings, the acc…
Brake
Only the brakes can stop your vehicle. It is very dangerous if the brakes do not work properly. If the brakes make a lot of noise, give off a we…
Barriers
A barrier is a closing mechanism that serves to control the use of a passage or access. Other names that are used are barrier, lever and barel. …
Fire extinguisher
A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. It is not inte…
