Reusing Bottle Caps
A woman from Greece decided that she got tired of throwing away bottle caps, so she decided to save them and have her kids play with them. Then one day, struck by inspiration, Alison Davidson decided that the bottle caps were beautiful in their own right, and decided that she had to do something with... Read More »
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When salt water and fresh water meet, energy is released when the salt water tries to find a new salinity equilibrium. According to Doriano Brogioli of the University of Milan Bicocca in Monza, Italy, this energy can be harnessed using modern day techniques to capture the energy. 
