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The numbers at the bottom of plastic bottles are RIC symbols
Ever wonder what those small numbers on the bottom of your plastic bottles and takeout containers mean? They're called Resin Identification Codes. Follow BI Video: On Twitter More from Science ...
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20 Tips and Tricks for Reusing Bottles and Cans
Cut the bottom four inches off a 1/2-gallon plastic ... Probably the easiest method for making DIY free weights is ...