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Philo Taylor Farnsworth (August 19, 1906 – March 11, 1971) was an American inventor and television pioneer. Although he made many contributions that were crucial to the early development of all-electronic television, he is perhaps best known for inventing the first fully functional all-electronic image pickup device (video camera tube), the "image dissector", the first fully functional and complete all-electronic television system, and for being the first person to demonstrate such a system to the public.

In later life, Farnsworth invented a small nuclear fusion device, the Farnsworth–Hirsch Fusor, or simply "fusor", employing inertial electrostatic confinement (IEC). Although not a practical device for generating nuclear energy, the fusor serves as a viable source of neutrons. The design of this device has been the acknowledged inspiration for other fusion approaches including the Polywell reactor concept in terms of a general approach to fusion design.

Farnsworth was born on August 19, 1906 to Lewis Edwin Farnsworth and Serena Amanda Bastian, a Mormon couple then living in a log cabin built by Lewis's father in a place called Indian Creek near Beaver, Utah. The family moved to a farm in Rigby, Idaho in 1918, where Lewis supplemented his farming income by hauling freight with his horse-drawn wagon. Philo was excited to find his new home was wired for electricity, with a Delco generator providing power for lighting and farm machinery. He was a quick study in mechanical and electrical technology, repairing the troublesome generator, and upon finding a burned out electric motor among some items discarded by the previous tenants, proceeding to rewind the armature and convert his mother's hand-powered washing machine into an electric-powered one. Philo developed an early interest in electronics after his first telephone conversation with an out-of-state relative and the discovery of a large cache of technology magazines in the attic of the family’s new home.

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Philo Farnsworth."
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