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How does one become a jet engine mechanic? The researchers in the A to Z Career Lab investigate the roles and responsibilities of jet engine mechanics, and they report their findings to inquisitive students. Part of the "I Can Be Anything I Want to Be A to Z" series.
(Source: DCMP)
Meet three mechanical engineers who are designing the next generation of jet engines at a major U.S. company. They explain how their curiosity about how things work led them to advanced engineering degrees and cool careers with aircraft engines. Part of the "Career Connections" series.
Tracy Drain is a flight systems engineer at NASA's Jet Propulsion Laboratory in Pasadena, California. As a child she became interested in space, and now she makes sure all the parts and systems in a spacecraft work as expected. She enjoys solving new, complicated problems. Part of the "Design Squad Nation" series.
Engineers and architects are creating bridges that combine the best of both art and design. Bridges are no longer just a tool to get from one side of the river to the other. Some bridges have the goal of being aesthetically pleasing and efficient for pedestrians. Others rely on the cantilever design to span a distance equivalent to three and a half jumbo jets. Bridges are often classified by their structure and how the forces of tension, compression, bending, torsion and shear are distributed. Shows how designs vary depending on the function of the bridge, the environmental factors, the materials, and technology used to construct them.
It was a decade of big bands and big bangs. During the Second World War, the 1940s bring some of the greatest inventions of all time. And in the peaceful years that followed, all that inventing know-how would carry on in ways never imagined. Featured inventions include: the jet engine, the computer, the microwave oven, kitty litter, and the Crash Test Dummy.
Humans have always been intrigued by the idea of flight. Experiments with Hot Air Balloons led to a pig and duck being the first air travel passengers. From there, the Wright Brothers created the first airplane, and aviation was off to the races. From the jet engine and military aircraft to passenger planes, worldwide travel is now a matter of hours rather than days or weeks.
Volcanic ash is known to present hazards to aviation, infrastructure, agriculture, and human and animal health. Airborne ash coats the exteriors of aircraft, enters modern jet engines and melts while coating the interior parts thus causing damage and failure. With support from the National Science Foundation, Volcanologist Dork Sahagian and his colleagues are learning more about the aerodynamic properties of ash, and how long different sizes and shapes stay in the atmosphere. They use a wind tunnel to study how ash travels in the atmosphere during and after volcanic eruptions. They want to develop ways to predict when and for how long damaging ash will fill the skies, and when it’s safe to fly again.
Scientists at NASA’s Jet Propulsion Laboratory conduct scientific investigations and engage in the engineering design process as part of their everyday operations. In this segment, they offer an overview of the five steps involved in creating science fair projects. Part of the “How to Do a Science Fair Project” series.
To traverse the surface of the Moon or Mars, a vehicle must be able to think for itself. At NASA's Jet Propulsion Laboratory's testing ground, a team of scientists demonstrates the rover that will soon wander over the Martian landscape.
A scientist from NASA explains the basic characteristics of a comet. Students will make their own comet by using a wide range of craft materials. Part of the “DIY Space Classroom Activities” series.
A scientist from NASA explains how to build an icy model of a comet, complete with shooting jets. This activity provides an opportunity for students to make observations, discuss changing states of matter, and demonstrate measuring skills. Part of the “DIY Space Classroom Activities” series.
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.
Typically, diesel fuel is made from crude oil, but scientists can make high-grade diesel from coal, natural gas, plants, or even agricultural waste, using a process called Fischer–Tropsch (FT). FT Diesel is the ideal liquid transportation fuel for automobiles, trucks, and jets. It’s much cleaner burning than conventional diesel, and much more energy-efficient than gasoline. But, FT Diesel is expensive to make and generates lots of waste. With support from the National Science Foundation and its Center for Enabling New Technologies through Catalysis (CENTC), chemists around the United States are working together to improve the cost and energy efficiency of alternative fuels. Part of the National Science Foundation Series “Science Nation.”
Amanda Parkes reveals some of her latest engineering projects and helps us find out what it’s like to be a design engineer.
Environmental scientist Tamar Losleben explains how environmental engineers research and plan the best ways to use resources to satisfy both human and environmental needs.
Anita Kalathil shows some of the latest chemistry projects taking place at Proctor & Gamble and what her typical day is like inside and outside the lab. Find out what it’s like to be a chemical engineer.
Agricultural engineers explain their work and how they use biology and engineering to make farms energy efficient and the food supply safe and plentiful. They describe what drew them to this profession and also discuss their education and career paths.
The engineers at NASA are studying cellphones and computers as a means to create a mini-satellite called a CubeSat. CubeSats are small but highly capable of performing a variety of space missions. Part of the “Crazy Engineering” series.
The journey of NASA's Cassini spacecraft around Saturn is coming to an end. The Cassini mission has been exploring the Saturn system for nearly 13 years and has rewritten the textbooks on the ringed planet and its moons, but the spacecraft is pretty much out of fuel. However, a lot of work from engineers designed the spacecraft and programmed its flight path, and they used astrodynamics to navigate the spacecraft between the rings of the planet. Part of the "Crazy Engineering" series.
Leila Madrone is a mechatronics engineer who works at Otherlab. She leads an engineering team that is trying to improve large solar power fields. Before she joined Otherlab, she worked at NASA, where she created a device for taking high-resolution panoramic images. She chose to become an engineer because she wanted to help create a better world. Part of the "Career Spotlight" series.
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Biology related concepts
A collection containing 59 resources, curated by Benetech
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
