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Description
Get started on DIY project number two: use cardboard to build a tower capable of supporting a 100-pound gravity load and a 10-pound lateral load simultaneously. This exercise closely replicates problems faced by real-world skyscraper designers. In this lesson, use vector math to analyze the forces exerted on each structural element of the building.
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Design and build an 8-foot beam bridge capable of carrying a swarm of pedestrians across a small stream. First, consider three alternative concepts, with beams made of identical wood, but of different configurations. Then develop these designs, analyzing their stresses and failure modes before selecting the optimum, building it, and inviting your friends onto the span.
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Now tinker with helicopter aerodynamics by adapting the classic Penni model helicopter design used by many hobbyists. Discover the importance of countering the main rotor's torque, and investigate the mechanical genius of the rotor hub - fortunately simpler on our model than on full-size aircraft! With its 16-inch main rotor, your super-light helicopter can safely fly indoors.
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Taught by Professor Stephen Ressler of West Point, this course conducts you through 17 thrilling engineering projects that you can build at home - from a suspension bridge across a small stream to a low-altitude sounding rocket. Dr. Ressler walks you through the entire process, from design to build to test, showing you how to think like an engineer in approaching any problem.
85) Extreme Robots
Description
Walking and running robots, whether they move on four legs or two, offer some of the most extreme physical challenges in all of robotics. What are the advantages of legged robots that make them so attractive to roboticists? How do robots with legs balance themselves and move around in different environments?.
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Take to the air for an eye-opening look at aerial robots, from the autopilot features in commercial airplanes to unmanned drones that can deliver packages. Topics include the role of gyroscopic sensors and recent technological advancements that are extending the functionality and power of flying robots like never before..
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Begin the first of four lectures on telecommunications technology by tracking the landline telephone system, known in the trade as “plain old telephone service.” Follow the pair of copper wires from your landline phone to the multi-pair cables strung from power poles to the all-important local exchange and beyond..
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Who has not tied a paper cup to a helium party balloon to make a primitive airship? In this lesson, design and build a far more advanced version: a radio-controlled blimp that you can remotely pilot around your house. Calculate the volume of helium required to lift your blimp and its control unit, borrowed from a toy tank. Use two motor-driven propellers for thrust and control.
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Hospital robots have designs and functions meant to tackle the complexity of the modern medical workplace. First, discover how robots like HelpMate and Da Vinci work in patient wards, surgical theaters, and other settings. Then, delve into the burgeoning field of neuroprosthetics, which use the human nervous system for control of artificial limbs..
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Investigate the beauty and complexity of the public switched telephone network (PSTN). Optimized for transmission of the human voice, it comprises a vast array of conventional phone lines, fiber-optic cables, microwave links, and other media. Trace its evolution to the remarkable system in use today. Investigate the beauty and complexity of the public switched telephone network (PSTN). Optimized for transmission of the human voice, it comprises a...
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Because it’s a multidisciplinary field, there isn’t just one future for robotics, but instead multiple futures. What could some of them look like? Consider everything from companion robots that can coordinate our activities to surgical robots that can work autonomously inside our bodies using updates from a “robotic cloud system.”.
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What turns a remotely controlled machine into an autonomous robot? Self-control. So where does self-control in robots come from? Find out in this lecture on robot controllers: the computer-like part of robots that uses sensory information to decide how the robot should achieve its immediate and long-term goals..
Description
Delve into the history of the most potent artillery weapons in the era before gunpowder: catapults. Examine the workings of the ballista, onager, and trebuchet. Then get started on a model ballista capable of hurling a golf ball 200 feet. Analyze the machine's nylon torsion springs to ensure that they can store enough elastic energy to achieve the required 200-foot range.
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Dig deeper into aerodynamic science so you can choose an airfoil shape and appropriate wingspan, aspect ratio, fuselage length, and stabilizer dimensions for your model plane. Pay special attention to aerodynamic stability and such factors as the dihedral angle of the wings, noting these features on full-size aircraft. Then build the airframe, using wood, tissue paper, and metal wire.
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Amina Khan believes that nature does it best. In Adapt, she presents fascinating examples of how nature effortlessly solves the problems that humans attempt to solve with decades worth of the latest and greatest technologies, time, and money. Humans are animals too, and animals are incredibly good at doing more with less.
If a fly's eye can see without hundreds of fancy lenses, and termite mounds can stay cool in the desert without air conditioning,...
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How did somebody come up with the idea for bridges, skyscrapers, helicopters, and nightlights? How did people figure out how to build them?In 3D Engineering: Design and Build Your Own Prototypes, young readers tackle real-life engineering problems by figuring out real-life solutions. Kids apply science and math skills to create prototypes for bridges, instruments, alarms, and more. Prototypes are preliminary models used by engineers-and kids-to evaluate...
Description
Almost fifty years ago the first industrial robot was "employed" in an automobile assembly plant. Robots are regularly used for hazardous, super-heavy and difficult tasks in manufacturing, agriculture, entertainment, medicine, and space exploration. Welding robots with touch sensing and seam tracking abilities increase assembly plant efficiency, while robotic surgery results in less pain, quicker recovery and shorter hospital stays. NASA's robotic...
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Dig into different techniques for error correction. Start with a game called word golf, which demonstrates the perils of mistaking one letter for another and how to guard against it. Then graduate to approaches used for correcting errors in computer operating systems, CDs, and data transmissions from the Voyager spacecraft..
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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,...
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