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Percy Spencer (July 19, 1894 – September 8, 1970) ... At the later age, he discovered that a local paper mill was soon to begin using electricity, ...
At 14 Spencer got hired to install electricity at the nearby paper mill. A few years later he was so inspired by the heroic actions of the Titanic's radio operators that he joined the Navy and ...
Percy Spencer, an engineer working for American defense contractor Raytheon, accidently discovered a new use for radar technology in the mid-1940s. While standing near an active magnetron, which ...
Percy Spencer: 1894 Magnetron [154] 2000 Alfred Free: 1913 Glucose detection for diabetes [155] 2000 Helen Murray Free: 1923 Glucose detection for diabetes [156] 2000 James Franklin Hyde: 1903 Transparent silica [157] 2000 Steve Wozniak: 1950 Personal computer [158] 2000 Walt Disney: 1901 Multiplane camera [159] 2000 William Justin Kroll: 1889 ...
Waltham is home to the Waltham News Tribune (formerly The Daily News Tribune), a weekly paper which is published each Thursday, year-round owned by Gatehouse Media. The Waltham Patch covers the local, daily news and invites locals to post their own blogs, events and opinion online only. [ 108 ]
The Gold Rush began in earnest in 1849, which led to its eager participants being called "49ers," and within two years of James Marshall's discovery at Sutter's Mill, 90,000 people flocked to ...
There is documentation that the New York merchant John Keating opened a paper mill in Manhattan in 1768, although no watermarks have been attributed to that mill. [3] In 1772 Keating moved his mill to Continental Village, in Putnam County, NY, where it operated for a few years, until it was set afire by British troops in 1777, during the American Revolution.
In 1835 it became the firm of Platner and Smith, which in 1850 purchased the Union and Enterprise mills on the Housatonic River in Lee, Massachusetts, and another mill on the Laurel Lake outlet. These three mills were called the Castle and Laurel paper mills. [7] Platner and Smith became the largest paper manufacture in the United States. [7]