Punk injected a much-needed sense of urgency into the British music scene.

A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place. Applying a force tangential to the knob is essentially equivalent to applying one perpendicular to a radial line defining the lever.

Sampling stations have been designated intake, maingate, 100 feet downface, and tailgate (fig. 4).

The Russians used the “cheek to jowl” tactic, closing to less than 50 meters of the Wehrmacht's front line, too close for the Germans to call in artillery or Stuka support. It forced close quarters combat that the Russians had trained to conduct and the Germans had not.