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time_management
on Jan 12, 2009
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Hack your brain: How to hallucinate with ping-pong...
You can buy "mind machines" for about $100. Or you can use get the sound component, at least, out of your computer using an online beat generator.
innernode
on Jan 13, 2009
[–]
Just go to the App Store and buy a Binaural Beats app for a couple of bucks instead
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