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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)
Nate Ball uses science to develop mechanical devices that help improve life. Some of his designs push technology to its limits, like his portable, refrigerated vaccine backpack.
Communication between people and cultures initially stemmed from trade and commerce. With Guttenberg's invention of the printing press, information was available to people beyond the elite and wealthy for the first time. Trade drew explorers out into the oceans, and mapmakers outlined their treacherous journeys. These basic maps are what led Columbus to believe he could reach the East by sailing west. Instead he found America, and established trade routes between America and Europe.
Robotic arms are cool, useful, and fun to make. In this video from "Design Squad Nation," students design and build controllable mechanical arms and use their "robo" arms to lift objects and play a series of games. As they build their mechanical arms, the students use the engineering design process, apply a variety of science concepts, and learn how NASA uses robotic arms in many of its missions. Part of the "Design Squad Nation" series.
Using only gasoline to power cars back in 1905 was cheaper and easier, so the hybrid car was forgotten-until recently. The modern hybrid car has two distinct power sources working together to make it run: gas and electric power. Since the fuel widely used now is a non-renewable resource and becoming increasingly less affordable, the hybrid car is making a comeback. The benefit of the hybrid is that instead of running on gas, it uses non-polluting electric power when possible. Also, it helps cut pollution and saves drivers money at the gas pump.
A shark attack survivor now knows what it feels like to be part bionic man. 23-year-old amputee Craig Hutto has volunteered to help test a state-of-the-art prosthetic leg with powered knee and ankle joints. With support from the National Science Foundation and continued support from the National Institutes of Health, Vanderbilt University mechanical engineer Michael Goldfarb has spent several years developing the leg, which operates with special sensors, an electric motor, a battery, and computer technology. Sensors monitor the user's motion and microprocessors figure out what the person is trying to do. Goldfarb says the powered leg reduces the lag time between a real leg and a prosthetic one. Hutto confirms that the powered prosthetic is much better at anticipating his next move.
