Highlights in review

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Host Lynn Poole reviews highlights of programs from the past year: "A Hospital Never Sleeps" (1/21/52) takes viewers behind the scenes at Johns Hopkins Hospital at night; "Artist and the Doctor" (12/17/51) reveals medical artists' work, including photographic art and "moulage" at the Department of Art as Applied to Medicine founded by Max Brodel in 1885 at the Johns Hopkins School of Medicine; "The World From 78 Miles Up" (9/11/51) shows film clips, diagrams, and explanation of the operation of the Navy's Aerobee rocket as it gathers atmospheric data; "Solar Power for Food and Fuel" (2/11/51) describes solar energy research and offers an explanation and microscopic view of plant cells engaged in photosynthesis; "Is It True?" (10/22/51) differentiates between the myths and facts about hypnosis; "It's a Fact" (12/3/51) demonstrates the facts of radiant heat using a Crooke's radiometer and explains Bernoulli's Principle; "Krilium for Tomorrow" (2/4/52) introduces Monsanto's soil conditioner for creating porous soil for better plant growth and uses time lapse photography to show plants' growth rate in the product.

Heating houses with the sun's rays

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Mr. Contini briefly explains both a film about photosynthesis and a pictorial history of solar energy, including Hero's solar devices in Egypt, Frank Schuman's 1910 solar pump for irrigation, C. G. Abbott's solar flash boilers, and Felix Trombe's solar ovens for industrial uses. Dr. Telkes shows photos of a solar-heated house in Massachusetts and explains a diagram of its operation and a graph of its chemical storage method. She refers to recent books on energy sources of the future by Palmer C. Putnam and Eugene Ayres. Dr. Telkes displays the experimental solar oven she has designed for primitive civilizations in the tropics, and a film shows the oven's success in baking rolls. Solar stills are useful for desalination of salt water, according to Dr. Telkes. She refers to a large one built by Charles Wilson in Chile and demonstrates a still's use with a simple model. She notes that the U.S. Dept. of Interior's saline water program's goal is to convert arid lands through solar still irrigation.

Harnessing the sun

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Dr. Eisenhower, Johns Hopkins University president, opens this tenth season of Johns Hopkins television. Lynn Poole discusses increasing U. S. energy needs and predicts that the world may run out of coal in 1000 years and oil in 100 years, making solar energy a critical commodity. A film clip shows the sun's surface and its energy generation is discussed. John Yellott, executive director for the Association for Applied Solar Energy, says that space heating will be the first large use of solar energy. He explains the workings of a solar-heated house with auxiliary heat pump designed by University of Minnesota architecture student Peter Lee and engineered by Bridgers and Paxton. According to Mr. Yellot, the basic instruments of solar energy are collectors, concentrators, photoelectricity, and photochemistry. He shows how solar stills can convert salt water into fresh; solar furnaces can be used for metallurgy and other research; and solar stoves can be designed for arid countries where fuel is scarce. Mr. Poole uses a photo flood light to light a cigarette and shows how selenium cells operate a photoelectric exposure meter and 8mm movie camera. Mr. Yellott demonstrates a radio/phonograph developed by Admiral Corp. to run on solar cells with backup storage batteries. Mr. Yellot concludes that at this time large scale uses of solar energy are too expensive, but solar is ideal for small amounts of energy in isolated places. More research is needed in harnessing this inexhaustible source of power.