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Toby Jeffreys
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Edison patentIn 1908, Thomas A. Edison was issued a U.S. patent for an improvement to "Alkaline Storage Battery" (No. 879,612). Its purpose was to reduce foaming of the electrolyte in such batteries while in operation, which Edison attributed to the presence of even microsopic quantities of organic matter. To correct the problem, the alkaline solution, such as caustic potash, is filtered through bone black that has been first purified by washing in a hot potash solution, then washing in water.Image: plates of Edison's A-type storage battery, date unknown. |
Mike Birbiglia: Fear the Most
I was living with a girl for a while. We worried about different things. One day, I was like, What do you fear the most? And she was like, I fear youll meet someone else, and youll leave me, and Ill be all alone. And she was like, What do you fear the most? And I was like, Bears.