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A Second in Time
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A Second in Time

by Howard Cheek

Gallery: Weekly ChallengePosted June 23, 201567 views1 comments

OK, It's actually 1.6 seconds.. But who's counting right Mark?enlightened

I came in close using a shallow DOF, with the automatic watch movement on of course.

And here's a bit of trivia for you.. The second, a fundamental unit of time, is now defined in terms of the radiation frequency at which atoms of the element cesium change from one state to another. The second was formerly defined as 1/86,400 of the mean solar day. Source (Encyclopedia Britanica)

F/4.5, 1.6 seconds, ISO 200, 5DM2, Sigma 150mm f/2.8

 

Comments

1 comments
Comment posted by Mark Seaver on June 23, 2015 at 10:57 PM

What a special way to show the passage of time, Howard.  The clock works are are very nicely colored and sharp with the blurring of the hands showing time's passage.

I remember when they changed to using cesium to define the second.  I believe that work was done at what was then the National Bureau of Standards (now the National Institute of Science and Technology)

Registered on January 23, 2011, 1103 Posts, 17270 Comments