About

When we glance at our wrists to find out the time, we don't even think about the effort and ingenuity that has made it a possibility. From the earliest beginnings with stone circles and sundials, through water dripping and lowering the level in a marked off bowl, to graduated candles that (hopefully!) burned evenly and finally pendulum-driven trickery. And then came the drive from the shipping navigators to be able to accurately tell the time at sea, pendulums being no good in a pitching ship! The huge prize money put up for the first mechanism to solve this drove the invention of the spring-driven clockwork mechanisms still used even in today's world of quartz crystals and electrickery!

Personalize and Customize your watch

You can customize and personalize all the Zazzle watches posted here.
Instructions
Click the image of the product you like. If it's been designed with a monogram or name there'll usually be a box where you can change them to what you want.

Even if it hasn't got any, you can easily add your name or initials by clicking the customize button you'll see. It's easy peasy and there are loads of fonts to choose from! And you can change the color and style to suit you with just a click!

Friday, April 9, 2021

Cygnus Loop Nebula Supernova Remnant NASA Photo Wrist Watch


Ad: Cygnus Loop Nebula Supernova Remnant NASA Photo Wrist Watch

Taken by NASA's Galaxy Evolution Explorer the Cygnus Loop nebula is a supernova remnant 1 500 light-years away left over from a massive stellar explosion that occurred between 5 000 to 8 000 years ago and would've been bright enough to be seen from Earth. mySpaceWatch

#blue #telescope #astronomy #WristWatch

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