Monday, January 26, 2015

troxler effect fading

https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaLsS4hprAKrowRojMQ4OAQcllzSOBg01W4Ofy2XENXnfJXVegfN6BPd93iRNLcegw2WgFvDhhWIa0qMZcj7OyvdxuYhqwefSvRxzU0EdZATHqjkan9at1zd8hCcWQJeSDOGnIPpLc7sJs/s640/Q.gif

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