On This Day
1778 – The first recorded ascent of Triglav, the highest mountain in Slovenia.
Triglav (pronounced [ˈtɾiːɡlau̯]; German: Terglau, Italian: Tricorno), with an elevation of 2,863.65 metres (9,395.2 ft),[1][notes 1] is the highest mountain in Slovenia and the highest peak of the Julian Alps. The mountain is the pre-eminent symbol of the Slovene Nation. It is the centrepiece of Triglav National Park, Slovenia’s only national park. Triglav was also the highest peak in Yugoslavia before Slovenia’s independence in 1991.
Born On This Day
1873 – Lee de Forest, American engineer and academic, invented the Audion tube (d. 1961)
Lee de Forest (August 26, 1873 – June 30, 1961) was an American inventor, self-described “Father of Radio”, and a pioneer in the development of sound-on-film recording used for motion pictures. He had over 180 patents, but also a tumultuous career—he boasted that he made, then lost, four fortunes. He was also involved in several major patent lawsuits, spent a substantial part of his income on legal bills, and was even tried (and acquitted) for mail fraud. His most famous invention, in 1906, was the three-element “Audion” (triode) vacuum tube, the first practical amplification device. Although De Forest had only a limited understanding of how it worked, it was the foundation of the field of electronics, making possible radio broadcasting, long distance telephone lines, and talking motion pictures, among countless other applications.
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