https://peertube.dngr.us/videos/watch/bc262ed6-37bb-45d5-81f1-ecb6fa98063c Help us preserve, scan and post more rare and endangered films on Patreon: https://www.patreon.com/PeriscopeFilm Website: www.PeriscopeFilm.com Dating to 1942 and produced by Wilding Pictures on behalf of ALCOA, "Unfinished Rainbows" tells the inspiring story of how aluminum, once a rare and costly metal, became one of the most widely used and affordable materials in the modern world. It begins with Charles Martin Hall who discovered an inexpensive method to extract aluminum from its ore. Hall partnered with others to form what would become the Aluminum Company of America (ALCOA). The company innovated and produced aluminum furniture, railroad cars, and wire mills — and proved the metal's potential. The film concludes by highlighting how perseverance, innovation, and teamwork turned aluminum into a cornerstone of industry and national defense, emphasizing the continuing challenge for youth to seize the opportunities still waiting to be discovered. It was directed by Jean Yarborough, shot by Arthur Arling, and from a script by Leo Rosencrans. 00:00 Main titles. The topic of heat is introduced as a metaphor and thematic device. 1:02 – A classroom discussion begins about the value of science and invention. 1:46 – A student expresses skepticism about there being anything left to invent. 2:13 – The professor argues that science is an ongoing journey of solving problems. 2:26 – Introduction of aluminum as a once-rare, now-common metal. 2:45 – Story begins about Napoleon III using aluminum for royal dinners in the 1850s. 3:33 – Aluminum impresses courtiers at Napoleon's dinner; a scheme to make it cheaper begins. 4:28 – Professor Deville is funded to find a cheaper aluminum process. 5:54 – Deville lowers aluminum’s cost but not enough for mass military use. 6:24 – Shift to Charles Martin Hall, a young American chemistry student. 7:07 – Hall is challenged to solve the problem of aluminum’s high cost. 7:26 – Hall becomes obsessed with the problem, working in a woodshed lab. 10:05 – On Feb 23, 1886, Hall succeeds in producing aluminum cheaply. 11:08 – After two years, Hall secures funding to commercialize the process. 11:48 – Formation of Pittsburgh Reduction Company (later Alcoa). 12:28 – First aluminum ingot is produced. 13:25 – Thanksgiving realization: they can finally begin marketing aluminum. 14:13 – Customers reject aluminum until the company demonstrates its utility. 15:14 – They make and sell aluminum kettles to prove its usefulness. 16:04 – A successful pitch leads to a 2,000-kettle order. 17:02 – They decide to manufacture aluminum cookware themselves. 18:17 – Demand grows rapidly; customers now want to make their own aluminum goods. 19:33 – A salesman pitches aluminum wire in California. 20:18 – A massive 138-mile wire order is secured. 21:02 – No mill will produce aluminum wire, so the company builds its own. 21:28 – Aluminum's lightness makes it ideal for power transmission. 22:04 – Instead of replacing copper, aluminum increases overall wiring demand. 22:16 – Aluminum ventures into office furniture but meets resistance. 23:01 – Aluminum company starts making furniture themselves. 23:24 – Success follows, and original skeptics now want in. 24:01 – Efforts to get aluminum used in trains begin. 25:01 – Despite no orders, they invest in a mill for large aluminum beams. 26:08 – They publicly advertise aluminum trains before selling a single beam. 27:22 – Aluminum proves versatile, from microscopic wires to giant machinery. 28:01 – Aluminum creates new industries and jobs that didn't exist 50 years prior. 29:57 – Story of Tony Campula, who solved a finishing challenge for Rockefeller Center spandrels. 31:08 – By improvising with soap, soda, and a shaking box, Tony finds the perfect finish. 33:04 – The aluminum spandrels are installed on Rockefeller Center. 33:46 – Contrast between Hall’s woodshed and a modern research lab. 34:50 – Aluminum contributes heavily to national defense and modern industry. 35:18 – Emphasis on teamwork and long-term impact of aluminum innovation. 35:48 – Final call to action: there are still many things left to be done. Motion picture films don't last forever; many have already been lost or destroyed. For almost two decades, we've worked to collect, scan and preserve the world as it was captured on 35mm, 16mm and 8mm movies -- including home movies, industrial films, and other non-fiction. If you have endangered films you'd like to have scanned, or wish to donate celluloid to Periscope Film so that we can share them with the world, we'd love to hear from you. Contact us via the weblink below. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com Source: https://www.youtube.com/watch?v=0w4SuidLMzU Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Sat, 13 Jun 2026 15:08:02 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/bc262ed6-37bb-45d5-81f1-ecb6fa98063c All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.