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Jun 30 2015 – Leap Second (Reblog from The Science Geek)

Happy Leap Second Day, everyone! Here’s hoping our computers don’t freak out 🙂

The Science Geek

On June 30 2015 an extra second will be inserted into the very end of the day. This extra second is called a leap second.

Leap Second

Why do we need leap seconds?

Although we take the average length of a day to be 24 hours, the mean solar day, or average “natural” day measured by the Earth’s rotation is now slightly longer than this. This is actually due to the slowing of the Earth’s rotation.  See Note 1. At this present time, in the early 21st century, it is actually around 24 hours 0.001 seconds. So, to bring the day measured by accurate atomic clocks in line with the natural day, a leap second needs to be added approximately every 1,000 days. These leap seconds have always been added at the end of the day on June 30 or December 31. The previous one was added on June 30 2012.

Problems with…

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welcome to the collisionarium

The long weekend interrupted my writing schedule, so I’ll put out today’s post some time later tonight. Until then, I thought I’d share this new blog from Mariel Mohns out at More Than. As a creative-minded scientist myself, I’m looking forward to seeing more from the Collisionarium!

collisionarium

Hello world.

Born out of the idea that we learn something new every day, the collisionarium is a platform for communicating science, sharing ideas, and encouraging creativity. We believe that life is not made up of neat little boxes, but is a beautiful collision of experiences, interests, and disciplines. We hope you will join us…

Where ideas converge.

The intersection of science, art, geekery, and wonder.

Welcome to the collisionarium.

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