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12-16-14 | 01:03 PM

#7

cyccommute

Mad bike riding scientist

Joined: Nov 2004

Posts: 29,169

Likes: 6,240

From: Denver, CO

Bikes: Some silver ones, a red one, a black and orange one, and a few titanium ones

Quote:

Originally Posted by Steve B.

How exactly is this possible as we are not yet past the winter solstice. I thought every day got shorter, in the northern hemisphere until 12/21 'ish.

EDIT: But I went and looked it up and you are correct, you gain 2 minutes of time at sunset but lose 4 minutes in the morning, between now and 12/21.

I'm curious as to the reason.

My previous answer was a bit to glib. The tilt to our axis as well as our elliptical orbit around the sun and some tricky celestial mechanics are the reason for what I detailed above. The guys at Cornell have an explanation that takes a couple of readings to understand

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Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
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