Tag: equinox

#365daysofbiking Approaching equity

March 14th – One of the nice but pointlessly geeky things about riding with a GPS bike computer is the ability to see sunrise and sunset times change every day.

That’s not so great when nights are closing in, but when they’re opening out, it’s lovely to watch; and one of the things that always makes me happy is the spring equinox.

The science of the equinox/equilux is basically beyond me but the equinox is when the length of day is equal to the length of night, and the difference between sunset and sunrise is 12 hours. I always find it intriguing that thins’t smack bang at 6pm and 6pm, which would be neat, but usually around 6:15.

Every year this gets me, and every year I’m as delighted and inspired by it.

Find out more about the science of the equinox here.

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#365daysofbiking Approaching equity

March 7th – Things that happen while you’re not looking.

The darkness is receding fast now – we’re gaining around fifteen minutes more light in the evening now every week, and soon it will be the spring equinox, when the daylight and night time are the same length – 12 hours.

The concept of the equinox fascinates me, and I don’t really know why. But within a fortnight the sunrise and sunset will occur at the same numerical time, but AM and PM.

And after the equinox comes the start of British Summer Time – this year cruelly not until the 31st March.

Still, it’s almost over.

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March 19th – Things that happen when you’re not looking….

Sunday must have been the mathematical vernal equinox: When day and night are equal in length at 12 hours. Today, with sunrise at 6:13 and sunset at 6:17, the day was longer than night by four minutes.

Of course, the equinox isn’t as simple as that; there’s a full explanation on Wikipedia here and the true astronomical equinox, when the earth’s equator passes the centreline of the sun, occurs on Tuesday 20th March this year (2018).

This is another little milestone to longer, better days; with the coming of British Summer Time on Sunday next weekend, it will feel like summer is just around the corner.

Hopefully, the weather will oblige too.

March 17th  – Something interesting will happen between today and tomorrow. Thanks to the GPS based bike computer I use these days, I’ve been keeping an eye on sunrise and sunset times to measure the progress of the seasons. Today, the daylight will be just shorter than the night; by tomorrow, the day will be longer by about the same.

This is effectively the spring equinox – when day and night are equal length of 12 hours. This isn’t quite the astronomical equinox, which this year occurs on the 20th, but it’s good enough for me. 

Another milestone of the changing seasons and the ascent from darkness.

March 14th – So pleasant to be coming home in the light at last. Not so pleasant, several motorists today seemed to want me dead, which was a shock. People, check when you turn or change lanes, please.

The wind was very sharp, against me and I was cold, but the dusk falling over jockey meadows was beautiful, and it looked like a low bit was forming. 

It’ll be a while yet before the meadows green up for a new season, but right now, it’s enough that I can see them at all at gone six o’clock.

I note from sunrise and sunset times on the GPS that we’re approaching the equinox… it’ll be interesting to see when that occurs.