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64289b2a-721a-41c4-85db-c4b1f84df787

News from the sky

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BBC Producer Andrew Miller-Jones introduces this second exchange program produced in Baltimore and sent to Great Britain. Johns Hopkins University's Applied Physics Lab, sponsored by the Navy's Bureau of Ordinance, is featured. Dr. Gibson discusses cosmic rays and instruments used to do research on the effects of high altitude flying. Mr. Riblet explains how telemetering works and shows instruments used to transmit information from a distance. Mr. Miller-Jones exhibits cameras developed by Clyde T. Holiday to take photos in outer space and some of the pictures and films taken by these cameras. A chart shows the current maximum altitude of flight (nearly 80,000 feet) and the effects of altitude on pilots. A pilot tests the U. S. Air Force-developed pressure suit, and pictures show the U.S. Navy full-pressure suit.

Disposal of radioactive wastes

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Mr. Miller-Jones introduces this program on the dangers of radioactive fallout, the third in a series of exchanges between Baltimore, Maryland's station WAAM and Great Britain's BBC. Dr. Kruse explains that current incineration of radioactive waste could be detrimental to people's health if safe gas and ash levels are exceeded. Dr. Geyer and Mr. Talboys discuss the effectiveness of laundering of radium-tainted clothing. To improve removal of radioactive materials from clothing, combinations of several variables must be considered: isotopes, fabrics (fiber, weave, treatment), detergents, concentrations, water temperatures, agitation degree, and time. Dr. Renn then examines the problems of releasing radioactive waste into sewage treatment plants. Some waste, such as radiophosphorous, is easily absorbed by bacteria in the system; others could be captured by experimental trickling filters or the aerated sludge process, but the sludge must then be disposed.

The most precise machine in the world

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Lynn Poole describes a diffraction grating as having ridged scales, like a butterfly's wings, that create iridescence. The 75,000 precise ridges must be so accurately spaced that it requires a special machine to make a diffraction grating. Dr. Henry H. Rowland developed the first one in 1860, but Dr. John Strong refined this machine, the ruling engine, in 1950. Using a model of the machine, Dr. Strong explains the operation of a ruling engine, focusing on the perfect twin screws that are its vital parts. The maker of these screws, David Broadhead, of Wellsville, NY, demonstrates how one cuts one of these screws on a machine lathe. In a film, Wilbur Perry, one of the most accomplished mechanical and optical technicians in making diffraction gratings, constructs parts of the ruling engine, including the diamond used to cut the 75,000 grooves on the aluminum-coated glass. Diffraction grating is the basis of spectroscopy, separating light into various colors for analysis.

Trace elements, what are they?

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This program originates from the ballroom of the Lord Baltimore Hotel where alumni are celebrating the 77th anniversary of the Johns Hopkins University. Lynn Poole opens the program by paying special tribute to Elmer V. McCollum, who discovered vitamins A and B, and John Lee Pratt, who donated money to establish the McCollum Pratt Institute of the University. Using a periodic table, Dr. McElroy points out the macronutrients (nitrogen, phosphorous, potassium, magnesium, sulfur, calcium, and sodium) and the micronutrients or trace elements (copper, manganese, iron, and zinc). In addition to these, animals need cobalt and iodine to thrive and plants need boron and molybdenum. Both a diagram and an animation show how a nutrient deficiency in the soil may not affect plant health but won't be passed on to humans or animals and therefore could adversely affect them (e.g., lack of iodine in the soil may result in goiter in a human).

Five years in review

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This 200th show reviews the five years this series has been on television. Dr. Franco Rasetti recreates one experiment from the first show, which was filmed in a Johns Hopkins classroom: the spontaneous break-up of a radioactive element as evidenced by a Geiger counter's response. Dr. Ralph Witt, of the plastics lab, shows how plastics are made and molded by replicating the same plastic resin he made on the program five years ago. He explains how glass fibers can now be woven into fabric and covered with plastic resin to make a strong laminate. Lynn Poole then pages through album photos to recall other programs: John Lehman, the university glassblower; Dr. Donald H. Andrews freezing the atom; medical artists; warnings on sunburn; "Fear," the first program (10/3/50) for the Dumont Network; Dr. Russell Morgan unveiling the x-ray fluoroscope; human engineering; Dr. Arthur Parpart demonstrating the new microscope combined with a television screen; films of the earth taken by a camera 70,000 feet above the earth. P. Stewart McCauley pays tribute to the Johns Hopkins Science Review and its staff, guests, and viewers, especially Lynn Poole. Ken Carter, general manager of television station WAAM in Baltimore presents a gift of a lamp decorated with pictures from the show to Mr. Poole, who read many congratulatory telegrams on the occasion of the fifth anniversary of the Johns Hopkins Science Review.

Medical science at home & abroad: part one

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After an introduction by Sir Roger Makins, British ambassador, British TV producer and moderator Andrew Miller Jones discusses the association between Johns Hopkins Hospital in Baltimore and Guy's Hospital in London. A film describes each of these teaching hospitals and how they have been connected through exchange of information, ideas, and faculty since 1946. Two of Johns Hopkins Hospital's recent developments are demonstrated by faculty: Dr. Francis Schwentker's humidified oxygen tent, and Dr. Russell Morgan's televised x-rays. Detlev W. Bronk, president of the Johns Hopkins University delivered an address on Anglo-American cooperation in the many fields of scientific research. Part title from label.

More about space travel

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Using a rocket model, Lynn Poole reviews how, as fuel is consumed, it lifts in stages and ultimately goes into free flight. He then shows a film of the rocket crew's view from space. Colonel Flickinger, Director of Human Factors of the Air Force Research and Development Command, explains selection and training of the crew for outer space. He then shows an artist's conception of a space flight simulator that will monitor the crew's vital signs under physiological stress. He discusses the importance of the crew's emotional durability and shows an artist's rendering of a sealed cabin simulator and a five-crew centrifuge. Commander Phoebus, of the Medical Corps of the U. S. Navy, explains explosive decompression and describes the differences between partial and full pressure suits, as worn by such fliers as Charles Yeager and modelled by servicemen in the studio. He also shows a navigation simulator particular to space flight and discusses how crew train to move outside the space vehicle.

Is it true?

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This program consists of experiments to prove the facts of science and disprove the myths. For example, a copper penny is not a good substitute for an electrical fuse because the fuse is insurance against an overload, and a penny will overheat the wires and cause a fire. Dr. Richard Lazarus points out that not all psychiatrists diagnose and treat mental illness and abnormal behavior. He explains the difference between a psychiatrist and a psychologist and the various interests in the latter's field, such as market research, human engineering, learning styles, and stress reactions. Other misconceptions this program seeks to dispel are that small flies are "baby" flies (they're all in the adult stage); that spontaneous generation occurs, as believed by Hermann von Helmholtz in the 19th century; that people can be hypnotized against their will; that frozen body parts should be rubbed with snow; that ice always keeps things cold; that water can put out any fire; and other superstitions mentioned briefly.

Man will conquer space: part one

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In this first in a series of programs on space exploration, Dr. John Strong describes the layers of the earth's atmosphere. Heinz Haber discusses the problems that humans must overcome to travel in space. They will need to surmount oxygen deprivation, depressurization, ultraviolet and cosmic radiation, and zero gravity and weightlessness. Protecting man from these elements must be solved before manned space travel can occur.

Man will conquer space: part three

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In this third in a series of programs on space exploration, Dr. Wernher von Braun, rocket expert, explains and demonstrates a three-stage rocket and its role in the construction of a three-story space station, which will be a launch pad for trips to the moon. He shows viewers both a prototype space station model and moon rocket model and an animated version of the workings of the two.