(February 18, 1745 – March 5, 1827)

Alongside intelligence, diligence and perspicacity, opportunities, luck and accidents may facilitate discoveries. Alessandro Volta was a physicist and chemist, who (by sheer luck) capitalized on what eluded his compatriot, Luigi Galvani. Galvani first noticed that electricity was generated when different metals were connected to the muscles of a dead frog. However, he misinterpreted the underlying phenomenon by alluding that the animal generated the current. Volta, on the other hand, realized that it was an electrolytic process: facilitated by the electrodes (i.e. those metals) and the electrolyte (i.e. the aqueous substances in the frog’s tissues). To buttress this point, he went ahead and replicated similar processes without using animals’ tissues. He substituted those tissues with brine (i.e. concentrated solution of sodium chloride) as electrolyte, and determined that silver and zinc are very effective electrodes for this particular electrolyte. This invention heralded what we know today as batteries. Hence, Volta deservedly received credits for developing the first electrical cell (called voltaic cell then, and battery nowadays). From heavy duty machines to portable electronics, the importance of batteries cannot be overemphasized. They brought Volta so much plaudits which overshadowed his other accomplishments. For example, he served as physics professor (at Pavia) for 40 years. And in chemistry, he was the first researcher to identify, isolate and describe the properties of methane. Impressed by his achievements, Napoleon Bonaparte made him a count and a senator for his native Lombardy. Both the 8208 Volta asteroid and the 123-kilometer-wide Volta lunar crater are named after him.

 

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33 Comments

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  3. Alessandro Volta was a genius, and so are you, dear blogger. Look at how easy and straightforward you made everything on this website. It takes a genius to achieve a step by step presentation in complex stuffs like this, without losing any steam.

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