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, March 26, 2021

Monogram Initials Cassiopeia Milky Way Supernova Watch


Ad: Monogram Initials Cassiopeia Milky Way Supernova Watch

Galaxies Stars and Nebulae series: This really really deep Chandra image shows Cassiopeia A a supernova remnant in the Milky Way. New analysis shows that this supernova remnant acts like a relativistic pinball machine by accelerating electrons to enormous energies. Image code: cassasn Image credit: NASA/CXC/MIT/UMass Amherst/M.D. Stage et al. mySpaceWatch

#outer #space #picture #supernova #Watch

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