And every one knows the shortest day is today
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surely all days are the same length...................
just different amount of hours of daylight
cheeRS
Er, actually, no, all days are not the same length. Each day increases with the passage of time:
The Earth's day has increased in length over time. The original length of one day, when the Earth was new about 4.5 billion years ago, was about six hours as determined by computer simulation. It was 21.9 hours 620 million years ago as recorded by rhythmites (alternating layers in sandstone) . This phenomenon is due to tides raised by the Moon which slow eath's rotation. Because of the way the second is defined, the mean length of a day is now about 86,400.002 seconds, and is increasing by about 1.7 milliseconds per century (an average over the last 2,700 years).
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