Samuel Ruben died 30 years ago today. 2 days beyond his 88th birthday.
Why should you care? Because Samuel Ruben invented the dry cell battery, that ubiquitous device that lets us have power without being tethered to an electric utility.
Samuel Ruben died 30 years ago today. 2 days beyond his 88th birthday.
Why should you care? Because Samuel Ruben invented the dry cell battery, that ubiquitous device that lets us have power without being tethered to an electric utility.