Unblock

A plunger is a common device that is used to release stoppages in plumbing. The tool consists of a rubber cup with an attached stick "shaft", usually made of wood or bronze. Before use, any objects such as hair in the plug grate should be removed and, if possible the overflow hole should be...

A plumber's snake, sometimes known as a "toilet jack" or "electric eel", is a flexible auger used to remove clogs in plumbing that cannot be loosened with a plunger....

A PIN Unlock Code , also known as a PIN Unlock Key , is used in GSM mobile phones and some smartcards to unblock a blocked card.Most mobile telephones offer the feature of personal identification number protection...

The Vienna coup is an unblocking technique in contract bridge, so called because it was first recorded in Vienna in the days of whist, used to avoid problems when executing an automatic squeeze.-Examples:Take this sample hand, below....

Journalist leads are an Opening lead convention in the game of contract bridge. The method is designed to fix some problems with the standard opening lead system...