Every day, hundreds of unique inventions designed to solve pressing human problems and make our lives easier, appear. However ...

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They're both a far cry from the strange inventions from way back in the day. For example, a gas war resistant baby pram created in 1938. Or the wooden swimsuits that made their debut in the 1920s.

Similar to Bitcoin, Edublocks might serve as a new virtual currency exclusive to online education. If you watch a three-minute guitar lesson on YouTube or an hour-long physics lecture on MIT ...