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August 4, 2005

Hello Photon! The Optically Driven Watch

Move over Quartz. Physicists at the California Institute of Technology have created an alternative to the quartz movement – a disk (made of silica and the size of less than the width of a human hair) that vibrates steadily like a tuning fork (vibrates about 80 million times per second) when it is pumped with laser light (photon), which is very similar to the quartz crystal’s vibration from electrical current that helps regulate a battery powered wristwatch.

However, the only clear difference between the optically driven movement and the electric quartz is the design element that could provide new electro-optic functions withint the context of integrated circuits. This is the first micro-mechanical device that has been operated at a steady frequency by the actions of photons alone.

The race is on for someone to commercialize it.

related links

PhysOrg: Caltech Scientists Create Tiny Photon Clock
Optics Express: Radition Pressure driven Micro mechanical oscillator

Filed under: Adnan @ 9:03 am , Comments (4)

August 1, 2005

July’s Top Five

It’s the end of the month and here are July’s top five posts in our RSS feed (This month’s total RSS requests are 47904) . We don’t have a similar post tracking system for regular web traffic to the site :

1. They Buy the Story
2. Fawaz’s Power Breaker
3. Personal Attachment Devices
4. Speedy Vuitton
5. The Nurse Watch

To read the rest of July’s archive, click here or if you’re interested in subscribing to our feed and have no idea how, then click here.

Filed under: Adnan @ 12:42 am , Comments (0)



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