Summary: Air, an important industrial raw material, is first filtered to remove any solid matter. Then its constituent gases-nitrogen, oxygen, and other trace gases-can be separated by compressing the air, cooling it, and then allowing it to expand, which cools it further. Since each gas liquefies at a different temperature, the gases can easily be separated. As the air expands, it is used to drive...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
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Summary: This edition of Science Screen Report explores the synergy of two different physiological systems: the respiratory system, for acquiring and processing oxygen, and the circulatory system, for the internal transportation of oxygen and nutrients. Emphasizing the vital roles of the heart, the lungs, capillary action, and Earth's oxygen-rich atmosphere, Energy for Life illustrates clear connections...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: Following an opening segment on the importance of oxygen to the human body, this program studies the structure and function of the respiratory system. Topics include the anatomy of the upper respiratory tract, the lower respiratory tract, and the alveoli; the diffusion of gas molecules through the walls of the alveoli and capillaries, and the effect of high altitude on the diffusion process;...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2009
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Summary: The human brain suffers irreversible damage if deprived of oxygen for even a few minutes-a fact Dr. Gunther von Hagens demonstrates in this program, utilizing human cadavers. Simulating an artery injury to illustrate oxygen depletion through blood loss, von Hagens then focuses on problems affecting the trachea, the top priority for ER doctors. Von Hagens inserts an endoscope into his own throat...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2009
View online at AVOD
Summary: Industrialization not only changed the face of Western society-it also made people sick. Overcrowded cities, harsh working conditions, and newfound mobility all conspired to imperil public health. In this program, host Dan Cruickshank traces the developments in medicine that took place during-and were often inspired by-the Industrial Revolution. Pioneering Englishmen such as William Withering,...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: Why are some able to perform tremendous physical tasks, while others cannot? More specifically, why are males able to perform in ways females cannot? This program answers these questions and more by examining and calculating various indicators of physical fitness: percentage body fat, upper body size and strength, VO2 maximum, stroke volume, heart rate, cardiac output, hemoglobin and red blood...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: This program takes a close look at the organs of the human circulatory system and how they work to sustain life. After an introductory overview, the composition of blood-its plasma, erythrocytes, leukocytes, and platelets-is analyzed, blood types and Rh factor are considered, the role of hemoglobin in transporting oxygen is explained, and the anatomy and function of the heart is examined....
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2009
View online at AVOD
Summary: In lesson one, heat is used to distill ethanol. Iodine distilled from seaweed demonstrates the chemical phenomenon of sublimation. The principle of chromatography is explored by studying color pigments in water-base pens. Lesson two studies salt dissolution. Degrees of solubility are measured by dissolving quantities of boric acid at different temperatures. Recrystallization is achieved. In...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: In Germany, more than 4 million pints of blood are donated annually. Nearly 900,000 more pints per year are required to satisfy the transfusion needs of German hospitals. How will this gap be closed? Blood-economizing measures used by surgeons and some of the research efforts to create synthetic blood are the focus of this program. A scientist is filmed in Mexico working with the hemoglobin...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2009
View online at AVOD
Summary: Using the analogy of an automobile's system of fuel intake and exhaust, this program explores the makeup and functions of the respiratory system. Topics include the processes of respiration; the organs involved in respiration; why cells need oxygen; structure and functions of the lungs; relationship between the brain and the respiratory system; and a detailed look at what's behind the "simple"...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: In lesson one of this program, experiments are conducted on five white "mystery" powders to determine chemical content and reaction. Salt is fused into a solid block. By feeding gaseous oxygen into a plastic bag of liquid nitrogen, we observe the resulting changes in gases; argon condenses into liquid, then turns to gas upon being removed from liquid nitrogen. Lesson two shows the three states...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: Proteins, the essential biochemical foundation of the cell, fulfill a variety of tasks within the human body. This program provides insights into their structure and several of their functions, including their role in catalytic biochemical reaction and reproduction. How proteins recognize the "packaging" of smaller molecules is explored. Using a photosynthetic protein-a proton pump-as an...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: Lung disease-or pulmonary fibrosis, to use a more clinical term-is actually a set of illnesses that cause progressive scarring inside the lungs. This program takes a close look at the disease, the ways in which it is often detected, and current strategies for treating it. Showing how, over time, pulmonary fibrosis replaces healthy lung tissue with scar tissue, the program demonstrates how this...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
View online at AVOD
Summary: Lesson one looks at copper atoms using a Scanning Tunneling Microscope connected to a computer. Several demonstrations of combustion include burning firecrackers under water. Lesson two shows combustion of an industrial diamond. Thermite reaction produces iron metal from iron oxide. Tatara, the traditional Japanese steelmaking process, is described. Lesson three studies chemical reactions...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: This program examines how oxygen and carbon dioxide are transported throughout the body, guided by the brain as it reacts to internal and external stimuli. The process of breathing is modeled by a swimmer, the control of breathing by the brain is analyzed, and oxygen intake by the lungs and transport by red blood cells are discussed. The complementary actions of the circulatory and respiratory...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
View online at AVOD
Summary: A fire needs heat, fuel, and oxygen. This Science Screen Report examines that triangle of ingredients, and how scientists study it in order to combat-or harness-fire. With detailed examples of firefighting techniques, the program demonstrates the removal of heat from a class A blaze through the use of water or sprayed polymers, and the elimination of oxygen, a strategy used in fighting oil...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: This program explains why the body needs regular supplies of air and how it gets them. The camera follows the process of breathing through the ultra-thin membrane of the lung into the blood, showing how the varying demand for oxygen is met by the exchange of information between the brain and the chest muscles and how the body rids itself of carbon dioxide.
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: Three billion years ago, bacteria polluted the atmosphere with a new gas, oxygen, and changed the planet forever. This new "poison" gas became the catalyst for life to emerge. But today, humankind is also creating new gases, along with altering the composition of the atmosphere by building dams and removing forests. This program examines the possible consequences of our actions.
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2007
View online at AVOD
Summary: This program follows the journey of a red blood cell around the circulatory system to demonstrate the efficient and elegant design of oxygen and food delivery to all parts of the body and the removal of wastes before they can do harm. It shows how the veins and arteries are structured to perform their tasks: muscular arteries to transmit the force of the heartbeat, veins with valves to insure...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2005
View online at AVOD
Summary: This program dramatizes the titanic rivalry between Scottish researcher James Dewar and Dutch physicist Heike Onnes, who plunged cold science to the forbidding realm at which oxygen and then hydrogen turn into liquids. The quest continues today as scientists pioneer super-fast computing near absolute zero—the ultimate chill of 459.67 degrees Fahrenheit—where atoms slow to a virtual standstill.
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2008
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Summary: The five extinctions that have impacted the Earth over the past 400 million years-the Ordovician-Silurian, Late Devonian, Permian-Triassic, End Triassic, and Cretaceous-Tertiary-may be set to include another one on a massive scale. This alarming program assesses the extent to which Homo sapiens is provoking the planet's sixth extinction. According to scientists, wholesale destruction of...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2006
View online at AVOD
Summary: As we reach and move beyond our 40s, imperfections in our physiology-many that we have unknowingly carried for years-begin to reveal themselves. This episode explores the human body's ability to draw on its own reserves when things go wrong. During a routine checkup, 53-year-old Alan is found to have a life-threatening thoracic aneurysm in the blood vessel supplying his vital organs. Viewers...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2008
View online at AVOD
Summary: Until the 17th century, the building blocks of the natural world were a mystery. Of elements there were believed to be four - air, earth, fire, and water - and the science of chemistry had yet to be born. This program identifies some of the first chemical elements to be discovered by spotlighting the work of Hennig Brandt, Robert Boyle, Henry Cavendish, Joseph Priestly, Antoine Lavoisier, and...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2010
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Summary: Is a humane and painless execution method possible, and if so, would death penalty proponents support its use? Or is pain the whole idea? Examining what many see as the cruelty of current procedures, this program searches for a viable alternative. Experts in the death business-retired executioners, toxicologists, biomechanics specialists, and others-explain disturbing flaws in the use of...
Format: software, multimedia
Publisher / Publication Date: Films Media Group 2008