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Do This

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Do This

Postby E-lad » Wed Jul 11, 2012 2:03 pm

Point your TV remote control at yourself and press and hold the up volume button. What do you see? Nothing.

Now do the same thing and look at the remote control's sender element through your cell phone or your digital camera. What do you see?
Life is a comedy for those who think, and a tragedy for those who feel.- Horace Walpole
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Re: Do This

Postby lehman scott » Thu Jul 12, 2012 9:06 pm

Image

Cool! 940 nm, near infrared, just low enough to be invisible to your eye, and the camera photoreceptors don't go low enough to pick up normally-occurring IR EM emissions. Fascinating, Froggie!
Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.
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Pessimism of the Intellect; Optimism of the Will.
- - Antonio Gramsci
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