Almost 90% of American households use air conditioning, and 66% of that is central AC. The regions with the most AC use are the Midwest and South, according to the U.S. Energy Information ...

IF THE HANDS of dial clocks swept over their faces the other way around, that would be the direction known as “clockwise”. And they would tell the hour just as faithfully. It is convenient to have all ...

Not all of them do. The clock in Santa Maria del Fiore in Florence, decorated by Paolo Uccello, travels anti-clockwise. SIR – Roundabouts (or carousels as they are known elsewhere) go round clockwise ...

Mower blades themselves aren't threaded, but rather the fastener that holds the blade in place can be either right or left-threaded. Right-hand threaded fasteners tighten clockwise and loosen ...

In the northern hemisphere, the vast majority of tornadoes (more than 95 percent) rotate counter-clockwise–the same spin as a low pressure system. At low levels, air spirals into a tornado in a large ...

Hurricanes and low pressure systems do spin counter-clockwise in the northern hemisphere. Tornadoes usually do, though not always. The behavior of the intense thundershowers that produce tornadoes ...