Kaleidoscope: A toy consisting of a tube containing mirrors and pieces of colored glass or paper, whose reflections produce changing patterns that are visible through an eyehole when the tube is rotated. Image via Wikipedia I remember having these as a child. It was fascinating and magical for me. Try this link. The images move quickly so be prepared. If you move your mouse it changes even faster! http://inoyan.narod.ru/kaleidoskop.swf I found this on the"Aging Gratefully" blog http://aginggratefully.blogspot.com/2011/07/no-thought-thursday.html
LEGO Traffic Jam
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YouTuber Brick Technology built a LEGO traffic simulation as a miniature
version of Yuki Sugiyama's full-size traffic experiment on what causes
traffic...
1 hour ago