How Fireworks Get Their Shapes
Jul 4, 2015 16:02:17 #
Great subject for the 4th.
http://www.washingtonpost.com/posttv/national/health-science/how-fireworks-get-their-cool-shapes/2015/07/02/f37010a4-20e9-11e5-a135-935065bc30d0_video.html
http://www.washingtonpost.com/posttv/national/health-science/how-fireworks-get-their-cool-shapes/2015/07/02/f37010a4-20e9-11e5-a135-935065bc30d0_video.html
Jul 4, 2015 17:41:46 #
interesting :thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup:
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