Arduino-powered turntable plays the phases of the moon
 

This device created by student designers Yingjie Bei and Yifan Hu only looks like an artsy turntable, but it can't play your vinyl collection. Here's what it can do, though: show you the right moon phase for any particular day. When you input the dat...

http://www.engadget.com/2015/04/04/m...=rss_truncated