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!

Thursday, August 6, 2015

Monogram Brightest Supernova Ever space picture Wrist Watch

Take a look at this fantastic monogram watch design. Click the image to see it large and to personalize it with your initials. Will it look good enough?


tagged with: hrwaulb, astronomy pictures, outer space, star galaxies, sn1006c, supernova explosions, brightest supernova, exploding white dwarf, neutron star, deep space astronomy, monogram initials, supernova bursts, supernovae space bubble

Galaxies, Stars and Nebulae series Just over a thousand years ago, the stellar explosion known as supernova SN 1006 was observed. It was brighter than Venus, and visible during the day for weeks. The brightest supernova ever recorded on Earth, this spectacular light show was documented in China, Japan, Europe, and the Arab world.
Ancient observers were treated to this celestial fireworks display without understanding its cause or implications. Astronomers now understand that SN 1006 was caused by a white dwarf star that captured mass from a companion star until the white dwarf became unstable and exploded. Recent observations of the remnant of SN 1006 reveal the liberation of elements such as iron that were previously locked up inside the star. Because no material falls back into a neutron star or black hole after this type of supernova explosion, the liberation of this star's contents is complete. It represents, therefore, a cosmic version of Independence Day for this star.
This is a composite image of the SN 1006 supernova remnant, which is located about 7000 light years from Earth. Shown here are X-ray data from NASA's Chandra X-ray Observatory (blue), optical data from the University of Michigan's 0.9 meter Curtis Schmidt telescope at the NSF's Cerro Tololo Inter-American Observatory (CTIO; yellow) and the Digitized Sky Survey (orange and light blue), plus radio data from the NRAO's Very Large Array and Green Bank Telescope (VLA/GBT; red).
This combined study of the Chandra, CTIO and VLA/GBT observations shows new evidence for the acceleration of charged particles to high energies in supernova shockwaves. An accompanying Hubble Space Telescope image of SN 1006 shows a close-up of the region on the upper right of the supernova remnant. The twisting ribbon of light seen by Hubble reveals where the expanding blast wave is sweeping into very tenuous surrounding gas.
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image code: sn1006c

Image credit: X-ray: NASA/CXC/Rutgers/G.Cassam-Chenaï, J.Hughes et al.; Radio: NRAO/AUI/NSF/GBT/VLA/Dyer, Maddalena & Cornwell; Optical: Middlebury College/F.Winkler, NOAO/AURA/NSF/CTIO Schmidt & DSS

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