If Dr. Bunny Loaned You His Tardis

Tweet Who Eli?  Well yes, he has such a device, but really what this is about is a contest that Science Magazine ran for young scientists If you could go back in time and share one piece of scientific knowledge from today, what time period whould you choose, what would you share and how might that information change the course of history

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If Dr. Bunny Loaned You His Tardis