Regardless of what you think of Ethereum (and altcoins in general), it is a fact that this network has had and had a great impact on the entire industry. While bitcoin is considered primarily as a means of payment, during the huge increases in 2017, the ether was the driving force and the means of payment in many cases.
Smart contact lenses are made of polymers (chemicals) that expand when an electric current is applied and are controlled by five electrodes that surround the eyes. When the polymer becomes more convex, the lens focuses effectively.
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