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Today, people send emails, text messages, and status updates instantaneously. But not so long ago, messages were handwritten and travelled no faster than people could carry them. With the invention of the telegraph and then the telephone, instant communication was born. Radio and television created an industry for mass entertainment that continues to grow, and the computer age changed how data is crunched. With the invention of the internet in the 1980s, the world of communication has truly shrunk.
(Source: DCMP)
First in the series of three productions designed to let students learn by doing, guiding them through the science and history behind the Wright Brothers' invention of powered flight. This first component contains six ten-minute segments that explore (1) humankind's historical preoccupation with the idea of flight and the life and times of the Wright Brothers; (2) the science concepts of control, lift, and propulsion; and (3) evolution of the science of flight since the Wright Brothers.
Stephen Fry, writer and actor, gathers a team of craftsmen to help him build a copy of Gutenberg's printing press and sets himself the task of learning how to make the paper and type to print as Gutenberg once did. These practical trials and tests demonstrate the brilliance of Gutenberg's invention and bring the man and his machine to life. Also investigates why printing mattered so much to Gutenberg and his contemporaries, exploring the political and religious turmoil that shaped Gutenberg's world.
Harnessing energy from the waves of the world’s oceans seems like the ultimate in renewable fuel. With funding from the National Science Foundation, Electrical engineer Annette von Jouanne is leading efforts to capture wave energy, by creating simple, powerful devices that can withstand heavy winds, monster waves, and corrosive salt water. Oregon State University research now underway is based on ocean buoy generators. As ocean swells hit the buoy, electrical coils inside move through a magnetic field, inducing a voltage, and creating electricity.
Imagine if there were electronics able to prevent epileptic seizures before they happen, or electronics that could be placed on the surface of a beating heart to monitor its functions. The problem is that such devices are a tough fit. Body tissue is soft and pliable while conventional circuits can be hard and brittle--at least until now. Materials scientist John Rogers at the University of Illinois Urbana-Champaign is working to develop elastic electronics.
For centuries, land travel was restricted to how fast and far humans or animals could walk. In the 19th century, the invention of the bicycle transferred human energy to a set of wheels. During the Industrial Revolution, the invention of the steam engine led to the railroad, a change in transportation that created the tourist industry. In the early 20th century, the invention of the automobile forever changed how humans travel, and with the assembly line, Henry Ford forever changed how goods are manufactured.
With support from the National Science Foundation, wildlife ecologist Chris Wilmers and his team developed a collar to help them learn more about the behavior, metabolism and habitat preferences of mountain lions. In addition to its location, the animal’s behavior and physiology are recorded in unprecedented detail. They’re learning more about how the cats respond to different stimuli, such as climate, and interactions with other animals, and changes in the landscape created by development. Part of the National Science Foundation Series “Science Nation.”
Access to safe drinking water is a global problem for nearly a billion people. For approximately 200 million people, many in Africa, high levels of naturally occurring fluoride in the water cause disfiguring and debilitating dental and skeletal disease. University of Oklahoma environmental scientist Laura Brunson is back from Ethiopia where, with support from the National Science Foundation, she’s developing fluoride filtering devices that use inexpensive materials readily available right there in the villages.
In recent years, the number and scale of wildfires in the U.S. has risen, threatening cities and forests and forcing large-scale evacuations. NSF is supporting the WIFIRE initiative, led jointly by UC San Diego and the University of Maryland, to better monitor, predict, and mitigate wildfires in the future. Part of the National Science Foundation Series “Science Nation.”
The cloning of Dolly the sheep can trace its origins all the way back to Charles Darwin's trip to the Galapagos Islands in the 1800s. Darwin's evidence for evolution was overwhelming, but scientists still didn't know how traits passed from parent to offspring. As microscopes improved, scientists were able to see cells divide and eventually discovered the genes that make up DNA. This, along with other technological advances, has opened up an exciting new area of scientific study: nanotechnology.
The researchers are building scaffolds that mimic the three dimensional structure of human tissue. They use a machine called a biofabricator to deposit cancer cells at strategic locations inside the 3D structures, just like tumors in human flesh. These structures are high fidelity test systems. Burg and her team can culture cancer cells in them, experimenting to see which treatments are the most effective, with the ultimate goal of personalizing a treatment or a vaccine for individual patients. Part of the National Science Foundation Series “Science Nation.”
Host Lisa Van Pay visits the scientists and engineers working to make the electric car of the future a reality today. One of the toughest parts is storing enough potential energy in the battery. Graduate student Katharine Stroukoff from the University of Texas-Austin explains how her research may help build a better battery, while Mike Nawrot and Dan Lauber, members of the MIT electric vehicle team, describe the advantages of their fully electric Porsche 914.
With support from the National Science Foundation, biomedical engineer Bin He and his team at the University of Minnesota have created a brain-computer interface with the goal of helping people with disabilities, such as paralysis, regain the ability to do everyday tasks. Currently, they’re testing out their system using a flying object known as a Quadcopter, which is controlled with someone’s thoughts. Part of the National Science Foundation Series “Science Nation.”
Imagine robots no bigger than a fingertip scrambling through the rubble of a disaster site to search for victims or to assess damage. That’s the vision of engineer Sarah Bergbreiter and her research team at the University of Maryland. With support from the National Science Foundation (NSF), they’re building micro-robots to create legs that will ultimately allow a millimeter-scale robot to traverse rough terrain at high speeds. Part of the National Science Foundation Series “Science Nation.”
Using mud, clay, and tons of stone, ancient civilizations built buildings and monuments that are still standing today. The Egyptians built the Great Pyramid with an accurate measuring system, the ability to calculate areas and volumes of triangles, and a tremendous workforce that transported 1,000 tons of stone each day for 15 years. Other civilizations, such as the Romans, created marvels of engineering like the dome of the Pantheon, and built clean cities that included conveniences such as water management and sewers.
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.”
With support from the National Science Foundation, Center Director Doug Keszler and his team in the College of Science at Oregon State University are developing the next generation of electronic circuits, starting with the basic computer chip. In the manufacturing process, they want to replace bulky carbon compounds with metal oxides, in order to put more transistors onto a chip. The new process would be cleaner, faster and cheaper. Part of the National Science Foundation Series “Science Nation.”
Modern emails, pagers, faxes, and cell phones! It's all about communication with Timeblazers Sam and Jen, who travel back to test out different communication methods. The message-in-a-bottle tactic proves it could be a long wait before the tide comes in to carry the bottle to sea. It wasn't that long ago that to "log on" meant to throw a log on the fire to send smoke signals. There was the Pony Express and horse-drawn stagecoaches in the 1800s. Then came carrier pigeons, the telegraph, telephones, the Post Office, and overnight delivery.
This University of Miami residence hall may look typical, but students in one of the apartments are participating in research involving one of the planet’s most precious commodities--water. With support from the National Science Foundation (NSF), environmental engineer James Englehardt and his team created a net zero water system, which serves most of the residents’ daily needs, including dish washing, showering and laundry. All of the water is treated just outside the building, and reused in a sustainable loop. Part of the National Science Foundation Series “Science Nation.”
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. Two inches tall and trapped in a bathroom at Wanda's house, the kids have to get out before Wanda's mother discovers them. The kids use what they've learned about structures to construct a series of towers and bridges across the bathroom to an open window.
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A collection containing 12 resources, curated by Charles LaPierre
