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The Belated Laser Revolution

26 Apr 2012, 14:37 UTC
The Belated Laser Revolution
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As you may already know, the future is now. And when you stop and think about it, it really is. It's the 21st century and things which not long ago were science fiction are now so commonplace we don't even notice them anymore. My mobile phone doesn't need buttons because it has a touchscreen. It also probably has more computing power than the Apollo missions used to get men to land on the Moon. The notebook I throw in my bag every morning has a pocket containing an SD card which can store 16 gigabytes of data. And finally, one of my favourite geek toys is a violet laser. With a wavelength of 405 nm, it produces a lovely colour which cannot be recreated by either inks or any regular display screen. Lasers are literally everywhere, and they have been since the advent of the compact disk.(Read more ...)

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