LED Based Sand Timer

In the past, people had no access to atomic or electronic precision clocks, so they used sand timers and other things (maybe just counting their eye blinks even before that). Now we have presice electronic timing elements and LEDs, and we are making sand timers with LEDs, now which way we are headed, forward or backward. Clecik belo to see it (or buy it if you wish)

http://livesciencestore.com/56833.html

I am not at all againt this though, I am just aksing