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More energy from the sun hits the Earth in one hour than is consumed on the planet in a whole year. Caltech chemical engineer Sossina Haile and University of Minnesota mechanical engineer Jane Davidson are working to expand the nation’s renewable energy storage capacity. Their mission is to put the heat of the sun to work creating renewable fuels from sources that don’t need to be drilled out of the ground. Part of the National Science Foundation Series “Science Nation.”
(Source: DCMP)
Revolutionary technologies now make it possible to harness a completely renewable energy resource-the natural power of the sea. Explores ways that electric power can be drawn from tidal forces or from fluctuations in ocean currents. Highlights several innovations, including a tide-driven rotor off the coast of Cornwall in the United Kingdom, a multi-rotor locks system in the English Channel, an OTEC (i.e., ocean-thermal energy conversion plant) in southern Japan, and another OTEC facility in Hawaii. Commentary from the inventors, designers, and managers of these systems is included along with animation that illustrates how each mechanism works.
Solar power is defined as the energy produced by converting sunlight into heat or electricity. It is one of the most abundant and affordable sources of energy available. However, it is difficult to harness (and even impractical) in some parts of the world, so it is important to explore the process of converting sunlight to power. Shows three primary ways to produce solar power on a large scale: solar power–generating plants, photovoltaic cells, and solar thermal heaters.
Learn about powerful cyclones happening on Saturn. From a distance, Saturn appears to be serene; however, the Cassini spacecraft has provided detailed views that show the planet's active atmosphere.
Students demonstrate the process for making cheese and how the composition of milk aids the cheese making process.
Learn the differences between sedimentary, metamorphic, and igneous rocks.
Scientists at MIT's D-Lab are turning trash into treasure. They are using trash to heat homes and cook in developing countries. Part of the "Science Out Loud" series.
The Hubble Space Telescope, flawed when launched in 1990 and repaired in 1993, helps scientists study the universe. Highlights Hubble from design, construction, and repair to a range of spectacular images taken from beyond earth's atmosphere.
Explore some properties of water with Petunia and Pinky. It's all about those hydrogen bonds. Terms discussed include adhesion, cohesion, surface tension, and specific heat. Part of "The Amoeba Sisters" series.
What makes a glow stick glow? And why doesn't it heat up from the light? The answer lies in the processes taking place during chemiluminescence.
Stuart Rowan, a professor at Case Western Reserve University, has created polymers that are able to self-heal when heat is applied using a special light. Part of the Fast Draw Series.
Tests the heat zones of a Bunsen burner and shows some elements' coloration when placed in the flame. Notes that chemistry is everywhere, in both natural and man-made components.
What's the difference between thermoplastics and thermoset plastics? The primary physical difference is that thermoplastics can be remelted back into a liquid, whereas thermoset plastics always remain in a permanent solid state. Part of the "Ask a Scientist" series.
Unpredictable, stormy weather is a natural outcome of a warmer planet. As things heat, they become more volatile. From entire floating neighborhoods to massive harbor floodgates, cities around the world are trying to engineer their way to a safer future. Everything from farming to the insurance industry to building codes will have to change.
This video describes the five main forms of energy and how to differentiate between them. Students will learn how to calculate potential and kinetic energy. Everyday examples illustrate the impact of energy on daily life. Other topics covered include chemical energy, nuclear energy, electromagnetic energy, heat energy, mechanical energy, and the law of conservation of energy.
Graphene could make it possible for electricity to move effortlessly through computer chips, thereby allowing computer systems to run faster than ever before. Savings in both heat and energy costs could have graphene replacing silicon as the basis of computer chip construction. Part of the Fast Draw Series.
Sarah Don, a graduate student in Nuclear Science and Engineering at MIT, answers the question, "What does the future of nuclear science look like?" Part of the "#askMIT" series.
Mars is actually cold. Mars is about 50 million miles farther away from the Sun than Earth. That means it gets a lot less light and heat to keep it warm. Part of the “Mars in a Minute” series.
Go behind the scenes with Angelina and investigate the equipment and engineering skills needed to recreate ocean habitats. Explore a typical workspace of an aquarium and get a feel for the everyday problem solving skills needed as an aquarist. Part of the "Aquarist" series.
Introduces the concept that everything is made of matter, and examines the three states of matter. Defines and examines a range of solids, liquids, and gases. Uses graphics to show the effects of heat on atoms and molecules in solids. Summarizes each segment.
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