Mesmerizing Pendulum Waves - YouTube [http://www.youtube.com/watch?v=u6dTB4AqBmk&feature=youtu.be] - 2012-04-20 16:56:33 - public:time mathematics, motion, mtow, pendulum, periodic, video, visualization, wave - 8 | id:2341 -
Periodic Table of Elements and Chemistry [http://www.chemicool.com/] - 2011-04-03 18:34:01 - public:time chemistry, elements, infographics, periodic, reference, science - 6 | id:2845 -
Dynamic Periodic Table [http://www.dayah.com/periodic/] - 2007-10-10 21:49:54 - public:time chemistry, education, elements, periodic, reference, science, table - 7 | id:4325 -
The Wooden Periodic Table [http://www.theodoregray.com/PeriodicTable/] - 2006-03-16 19:11:37 - public:time chemistry, education, periodic, physics, reference, science - 6 | id:5014 -