https://peertube.dngr.us/videos/watch/a64eaabc-5504-43e2-ba24-11b40815ba6d Join this channel to get access to perks: https://www.youtube.com/channel/UCddem5RlB3bQe99wyY49g0g/join Join us on Patreon. Visit https://www.patreon.com/PeriscopeFilm Visit our website www.PeriscopeFilm.com Part 1: https://youtu.be/kYPQb7SnaBE This film "Our Mr. Sun" is one of the episodes of the Bell Science Series. This was a special series of nine films created between 1956 and 1964 by Bell Telephone / AT&T corporation. These were crafted with entertaining animation and storylines that presented complex science theory in a clever way. Director Frank Capra wrote the screenplay for “Our Mr. Sun” with help from a scientific advisory board. (Donald Menzel's book titled “Our Sun” published in 1949, was also used.) This feature takes a look at our Sun, the physics of how it works, and its effect on the Earth. The film stars Frank Baxter as a factitious science researcher and Eddie Albert as a science writer. Part 2 begins with a discussion on thermonuclear reactions. It also digs shows early work in solar energy and hints that it could be a replacement for fossil fuels. 00:00 The title screen appears (:11). It begins with thermonuclear reactions and recent understandings on the sun’s energy (:24). Studies conducted by Hans Bethe in 1938 (:59) showed the sun’s energy is the result of hydrogen converting into helium. The mass difference is converted into energy. This is known as hydrogen transfusion. An animation follows including a character named “Therma the Magician” designed to explain the Sun’s magic (1:32). He explains the carbon cycle (3:50) and the hydrogen bomb. The proton-proton chain (5:00), sun’s inner temperature (5:51) and continuous potential for energy production are explained. The science writer expresses concern over depletion of the sun’s energy (6:30). Human dependency (7:00) on the sun for food with an increasing population and current rates of food inefficiency is discussed. The process of photosynthesis (8:26) and chlorophyll (8:59) are explained in through animations. Chlorophyll production in the sea (10:15) begins with phytoplankton. Drag net fishermen toss a net into the waters (10:50). A kangaroo chomps on vegetation (10:58) and a young boy drinks milk (11:13). The cows graze on grass (11:17) prior to producing milk as the science researcher explains how the Sun's energy is consumed through plants and humans. Dolphins perform tricks for water lovers in the Florida Keys (11:38). Inefficiencies of naturally produced chlorophyll (12:04) are discussed for current needs for food production. A green alga called chlorella is produced in fresh water lakes (12:58). This multiplied much faster than chlorophyll. Japanese scientists (13:23) at the Tokugawa Institute conduct studies using chlorella cultures. Future issues with fuel production are looked to (14:26) beginning with the history of man’s search of sufficient fuel sources. Windmills (14:59) and water wheels (15:01) provide power without man or animal use. The machine age led to coal (15:08) and fossil fuels. Machinery digs for fossil fuels (15:26). Drills release oil (15:30). Wide shots of oil rigs follow (15:34). Animations using a “sun power bank” (16:00) is used to show the use of fuel over the years. Dr. Charles Greeley Abbot (17:15) and his vacuum boiler tube follow. French research involves a large solar furnace (17:31). Solar cookers in India (17:41) enable cooking using the sun’s energy alone. Glass solar energy (17:58) is shown in animation. Dr. Maria Telkes’ (18:22) model house in Massachusetts collects and distributes solar energy. Solar batteries developed at Bell Telephone Lab were invented (19:02) by Daryl Chapin (19:14), Calvin Fuller (19:16) and Gerald Pearson (19:17). The recipe for the “solar wafer” is broken down in animation (19:41). A solar battery powers up a small train (21:05). Dr. Eugene Rabinowitch (21:44) and Dr. Lawrence J. Heidts of MIT (21:57) work with a method involving decomposing water into hydrogen for fuel. Phosphors (22:10) absorb sunlight and can glow in the dark. The close of the film looks at atomic power (22:53) and concerns over future power energy sources (23:26). A mushroom cloud explodes following an atomic bomb detonation (24:25). Animation explains the earth’s ability to exist due to size atmosphere and temperature (24:54). Human migration is hinted at in the event the Sun’s strength becomes too strong (26:10). This film was written and directed by Frank Capra (27:58). The scientific advisory board which helped make this film possible (28:15). 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=A9XtfNRVBlI Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Thu, 11 Jun 2026 05:10:01 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/a64eaabc-5504-43e2-ba24-11b40815ba6d 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.