Tuesday, March 24, 2009

Summer, fall getting longer. Spring, winter shrinking.

No, it's not global warming. The seasons change in length every year as the Earth very, very slowly -- very naturally -- wobbles on its axis. (Bakersfield Now) Due to the wobble, spring loses a minute, winter loses 30 seconds, each year. While the first day of Spring (that is, the vernal equinox, when the sun's most direct rays shift north of the equator) was on March 21st back in 1963, it's more like March 20th or the 19th now.

Does that mean there will be a time in the future of endless summer? Sorry, no. And for what it's worth, Pound360 is based in Southern California, where we basically have an endless summer, and it kind of sucks.

Anyway, the Earth is wobbling on a 25,765-year cycle. So the first day of spring will eventually make its way back to March 21 around 2203.

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I started pound360 to channel my obsession with vitamins, running and the five senses. Eventually, I got bored focusing on all that stuff, so I came back from a one month hiatus in May of 2007 (one year after launching Pound360) and broadened my mumblings here to include all science.