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…
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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…
Give way
A yield or give way sign indicates that merging drivers must prepare to stop if necessary to let a driver on another approach proceed. A driver …
Crossing
A crossing is a location on the road that is intended to cross and which is marked as such. They are for pedestrians and cyclists.
Coolant
A coolant is a substance, typically liquid or gas, that is used to reduce or regulate the temperature of a system. An ideal coolant has high the…
