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Engineers are motivated to improve our quality of life, and they typically develop new products to achieve this goal. They use several steps in developing new products: design phase, testing phase, and production and maintenance phase. During the design phase, engineers specify the functional requirements of the product. They also produce a prototype to evaluate its overall effectiveness. They also consider cost, reliability, and safety. During the last two phases, engineers determine if any failures of the components are likely and where they occur. In these processes, engineers use computers to create designs, analyze functionality, and simulate how a machine, structure, or system operates.
(Source: DCMP)
Explore the dynamic work environment of an electrical engineer who oversees large industrial projects. Watch as engineers interact with one another and use cutting-edge 3-D modeling. Learn how to become a licensed professional engineer. Part of the "Career Connections" series.
Learn how scientists are attempting to enhance apples' defenses through genetic engineering. Viewers learn why it is important for organisms to have a wide variety of genes. Part of "The Botany of Desire" series.
Two MIT students discuss the relationship between photography and science. They use various methods and instruments to explain how long exposure photography can help measure the speed of an airplane, observe the rotation of the earth, or create light paintings.
Northwestern University Mechanical Engineering professor Todd Murphey and his team are engineering robots to mimic humans. With support from the National Science Foundation, the team is using algorithms to enhance a robot’s ability to adapt to human behaviors. Part of the "Science Nation" series.
Charles Drew set a standard of excellence unparalleled by most of his white contemporaries. In 1943, his distinction in his profession was recognized when he became the first black surgeon to serve as an examiner on the American Board of Surgery. Despite the prejudices of American society in the first half of the 20th century, Charles Drew persevered in his practice and was never afraid to stand up for his beliefs and racial equality.
Structural engineers at the University of California, Los Angeles are hoping to design earthquake-resistance buildings and communities. They are using data and computer modeling to design structures able to withstand major earthquake events. These models are meant to guide safety inspections following earthquakes and help engineers locate “hotspots” more quickly. Part of the “Science Nation” series.
Explore efforts to decrease the use of pesticides by genetically engineering resistance in plants. Viewers also consider the debate over the benefits and risks of genetically modified organisms. Part of "The Botany of Desire" series.
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 this episode, Mo Rocca explores a Medical MacGyver that makes health devices from toys, train spinning, computerized Smart Shopping Carts, and soda bottle lights.
Researchers at the state-of-the-art Structural Engineering and Materials Laboratory at the Georgia Institute of Technology are using a full-scale model building to test new ways to protect structures from earthquakes and potentially save lives. The three-story concrete building is based on designs common through much of the 20th century. It has been subjected to round after round of simulated temblors to test if materials such as carbon fiber or new shape-memory alloys can be used to reinforce the structure so it would remain standing in moderate to strong earthquakes. With support from the National Science Foundation, structural engineer Reginald DesRoches and his team have developed a series of retrofits of varying cost and intrusiveness to give building owners in quake-prone areas a range of choices for hardening their property.
The University of Washington is advancing research into deep brain stimulation, which is used to treat people with essential tremor, Parkinson's disease, and other conditions. At the Center for Neurotechnology, a team is designing and testing upgrades for devices to make them smarter and less intrusive. Along with enhanced brain sensors, new control algorithms, and machine-learning techniques to improve device performance, the team is ensuring the design meets the day-to-day usability needs of patients. Part of the "Science Nation" series.
Gloria Kolb, CEO of Elidah, gives advice to women wanting to study science and engineering. She encourages females to find their passion and develop their expertise in helping science make improvements in society. Part of the "Ask a Science" series.
With support from the National Science Foundation, device engineer Jason Heikenfeld of the University of Cincinnati and a multidisciplinary team are developing new technologies to take sweat biosensors to the next level. Their wearable patches allow tiny amounts of sweat to be captured and analyzed quickly and accurately with strong correlation to blood data. The researchers envision a day when data from continuous sweat monitoring will be an essential tool in health care, like blood tests. Part of the "Science Nation" series.
With support from the National Science Foundation (NSF), Forrest Masters and a team at the University of Florida are developing new technologies to help engineers and scientists better understand the strong, high-wind storms that batter communities along U.S. coastlines. The National Home Education Research Institute (NHERI) has the broad goal of supporting research that will improve the resilience and sustainability of civil infrastructure against the natural hazards of earthquakes and windstorms. Part of the "Science Nation" series.
Dr. Jeffery Friedman introduces the genes and circuits that control appetite, including the key role of leptin. Part of the 2004 Howard Hughes Holiday Lecture Series.
An important part of the conservation effort in Gorongosa National Park is to identify the species living in the park to ensure their protection and monitor their recovery. Every year, teams of scientists conduct biodiversity surveys in different areas of the park. Piotr Naskrecki leads a survey project in a particularly remote area, the limestone gorges of the Cheringoma Plateau, to study the bat population.
This animated short tells the story of Alfred Wegener, a German astronomer and atmospheric scientist, who came up with the idea that continents once formed a single landmass and had drifted apart. Continental drift explained why continents' shapes fit together like pieces of a puzzle and why distant continents had the same fossils. During Wegener’s time, the idea was met with hostility but after his death a large body of evidence showed that continents do indeed move. Today the theory of plate tectonics is a fundamental principle in geology.
Gene therapy is a method for treating inherited diseases by delivering corrective versions of genes to patients. Dr. Jean Bennett and Dr. Albert Maguire focused their careers on developing a successful gene therapy for an inherited form of childhood blindness called Leber congenital amaurosis (LCA). This documentary tells the story of how the LCA gene therapy was developed. Students will learn how autosomal recessive conditions are inherited, how scientists can use modified viruses to deliver human genes to cells, what makes the eye an ideal tissue for gene therapy, and how model organisms are used to test treatments before they are tested in patients.
The Darién Gap is a remote tropical forest that has been home to indigenous people for thousands of years. As pressures from outside human development encroach on the forest, these communities are protecting their land using a cutting-edge tool: drones. Through a partnership with a nonprofit organization, the Rainforest Foundation, they map their community boundaries to secure land titles, create sustainable land-use plans, and monitor their forests against logging and ranching.
Showing collections 1 to 4 of 4
Biology related concepts
A collection containing 59 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
