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When did gregorio zara invented videophone

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          5. Gregorio y. zara impact to society.

          Gregorio Y. Zara

          Filipino scientist

          In this Philippine name, the middle name or maternal family name is Ynciong and the surname or paternal family name is Zara.

          Gregorio Ynciong Zara (8 March 1902 – 15 October 1978)[1] was a Filipino engineer, physicist, a National Scientist, and inventor.

          He was known as the father of videoconferencing[2] for having invented the first two-way videophone.[2][3][1] He was also one of the country's pioneer aeronautical engineer having invented an airplane engine that ran on plain alcohol as fuel.[1] Among his other notable inventions include a solar-powered water heater,[1][4], the discovery of the physical law of electrical kinetic resistance called the Zara effect,[4][2], and a propeller-cutting machine,[4] among others.

          Education

          A native of Lipa, Batangas, Zara finished primary schooling at Lipa Elementary Sc