hour

The hour (common symbol: h or hr) is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds. It is approximately 1/24 of a mean solar day.

For more information about hour check the Wikipedia article here

ZME Science posts about hour

Earth Hour 2009

Fri, Mar 27, 2009

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Earth Hour is an initiative started by the WWF (World Wide Fund for Nature/World Wildlife Fund) that asks people everywhere in the world to turn off the light and other unnecessary household appliances for one hour, to raise awareness towards the need to tackle global warming and other environmental problems. The “grandfather” was an idea [...]

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