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Scientists Discovered An Amazing Practical Use For Your Leftover Coffee GroundsWe could be producing concrete that's 30 percent stronger by processing and adding charred coffee grounds to the mix, ...
looking at it through a screen made with sand, surrounded by buildings made with concrete. I could let you guess what's in concrete, but I suspect you're already catching onto a theme here.
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How to Make a Concrete Mixer for Kinetic SandHow to Make a Concrete Mixer for Kinetic Sand In this video I show you how to make concrete mixer model from cans pepsi . You ...
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