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Princeton NJ Events

Events for Sunday January 31, 2021

How the Vacuum Tube Created the Age of Electronics, The Sarnoff Collection

Sunday January 31, 2021
1:30 PM - 3:00 PM

Dr. Allen will begin with the earliest history of vacuum tubes, describing the Edison Effect, and how Ambrose Fleming and Lee de Forest's inventions exploited this to create the first functioning vacuum tubes. We will review the basic theory of tubes as we move on to the pioneering developments at companies like GE, Bell Telephone, and RCA, including Edwin H. Armstrong's circuits. These creations revolutionized communication and led to our modern age of electronics.

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Stories of Slavery in New Jersey, Pennington Public Library

Sunday January 31, 2021
3:00 PM

Many will probably surprised at the revelation that New Jersey, in 1866, was the last northern state to abolish slavery. Dutch and English settlers brought the first enslaved people to New Jersey in the seventeenth century. By the time of the Revolutionary War, slavery was an established practice on labor-intensive farms throughout what became known as the Garden State. Lewis Morris brought Barbadian slaves to toil on his estate of Tinton Manor in Monmouth County. Colonel Tye, an escaped slave from Shrewsbury, joined the British Ethiopian Regiment during the Revolutionary War. Charles Reeves and Hannah Van Clief married soon after their emancipation in 1850 and became prominent citizens of Lincroft. Author Rick Geffken reveals stories from New Jersey’s dark history of slavery.

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