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Samuel Bendett, a research analyst who follows Russian robotics at CNA, a nonprofit research and analysis organization based in Arlington, Va., says in an email that FEDOR was first developed in 2016 by Russia's Foundation of Advanced Studies, that country's equivalent of the Pentagon's research arm, the Defense Advanced Research Projects Agency, or DARPA. It was envisioned as a multi-purpose robot for work in dangerous environments - such as places with chemical or radioactive contamination, and natural disasters - on Earth, as well as for use in space. Unlike simpler Russian robots and drones, the android is designed for jobs where multitasking is required, he said. Alex Ellery, an associate professor of mechanical and aerospace engineering at Canada's Carleton University who worked on the European Space Agency's ExoMars robotic rover, says that FEDOR, because of its complexity, faces some difficult challenges operating in space. Judging from photos, "it's a pretty sophisticated kit," he explains. First, gravity is a force that causes objects to attract one another. The simplest way to understand gravity is through Isaac Newton's law of universal gravitation. This law states that every particle in the universe attracts every other particle. The more massive an object is, the more strongly it attracts other objects. The closer objects are, the more strongly they attract each other. An enormous object, like the Earth, easily attracts objects that are close to it, like apples hanging from trees. Scientists haven't decided exactly what causes this attraction, but they believe it exists everywhere in the universe. Second, air is a fluid that behaves essentially the same way liquids do. Like liquids, air is made of microscopic particles that move in relation to one another. Air also moves like water does -- in fact, some aerodynamic tests take place underwater instead of in the air. The particles in gasses, like the ones that make up air, are simply farther apart and move faster than the particles in liquids.|MacGyver was a master of ingenious solutions. You don't need to live his life of peril to put these handy tips to work, though. As far as the writers of the TV series "MacGyver" were concerned in the late '80s, a bar of chocolate could stop a sulfuric acid leak -- and as it turns out, they were right. Sometimes, the easiest solutions are right in front of us, with simple tools and uncomplicated methods. Despite our desire for ease, studies show that in the long run, we may be able to make ourselves smarter by doing things the hard way. What researchers have found is that every time we learn a new skill, solve a problem or complete a task that needed to be thought through (for example, planning your route rather than relying on your GPS mapping program to do it for you), you're boosting your working memory. disney stock

















































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