Broadleaf forest. Broadleaf forests are the dominant habitat of the UK and most of temperate northern Europe. There's little left of Britain's ancient wildwood, but isolated pockets of oak, beech and mixed deciduous and evergreen woodlands are scattered across the continent, and dictate its biodiversity.
Engine pinging also refered to as pinking, detonation or knocking. Pinging can be anything from a loud knocking noise to a soft tinkling sound that is emitted from the engine. If an engine has a tendency to ping, it usually becomes first audible when operated in the lower rpm range and during acceleration.
'ping' is a computer network utility program used to determine the accessability of another computer on a network. Information gathered from the 'ping' program can also show the amount of time it took to contact the other computer thereby establishing if there are network delays between the two systems. The usage of this term probably originated with computer hobbyists or folks working in the computer industry.