The technology he'strying to develop is a new kind of vacuum tube
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The technology he's
trying to develop is a new kind of vacuum tube
trying to develop is a new kind of vacuum tube
Full Transcript
00:00:01.000 --> 00:00:02.751
The technology he's
trying to develop
00:00:02.877 --> 00:00:05.629
is a new kind of vacuum tube.
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Movie Summary
The stories behind innovations such as TV, radio, phones, airplanes, motorcycles and power tools as well as the inventors including Nikola Tesla, William Harley, Alexander Graham Bell, Duncan Black and Alonzo Decker.
![‐ [Narrator] But after
months of effort, - The Machines That Built America](https://clip.cafe/img400/narrator-but-after-months-of-effort.jpg)
![‐ [Narrator] But after
starting a new venture, - The Machines That Built America](https://clip.cafe/img400/narrator-but-after-starting-a-new-venture.jpg)
![‐ [Narrator] His 45,000 pounds
steam powered tractor is key - The Machines That Built America](https://clip.cafe/img400/narrator-his-45-000-pounds-steam-powered-tractor-key.jpg)
![‐ [Narrator] After
months of failures - The Machines That Built America](https://clip.cafe/img400/narrator-after-months-of-failures.jpg)
