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So hydraulic power might allow Prime to walk, but the hydraulic system itself would create a different set of problems. Belote, "hydraulic pumps are necessary; a secondary power source must be used to power the pump; valves are necessary to meet the appropriate pressures and flow rates." In addition, a hydraulically-powered Prime would have to be lined with piping to carry the hydraulic fluid. These pipes, along with Prime's fuel lines and electrical wiring, would have to remain undamaged or even untouched during transformation. After surviving the transformation to robot form, Prime would then have to walk as a biped. Belote describes what it would take for this to happen: Since traditional semis frequently exceed 30 tons in weight, the final weight of Prime could easily be in the 35 to 40 ton range. Compare this to the world's best "walking" robot, Honda's ASIMO robot, which has a total weight of 119 pounds and yet can only walk for about 40 minutes (electrically powered) and at a max speed of less than 2 mph.|Image Gallery: NASCAR NASCAR races into the 21st century with RACEf/x car-tracking technology. See more ­NASCAR pictures. The millions of NASCAR fans that tune in to watch Winston Cup races every weekend of the NASCAR season are watching the races like never before. The race cars of their favorite drivers are glowing as they whip around the track at breakneck speeds. What's causing this mysterious glow? SportvisionTM, the same company that brought you the superimposed 1st and TenTM line in football, has created RACEf/xTM technology to enhance the viewer's experience. That puck-tracking system used television cameras to track the hockey puck on the ice rink, making it appear to TV viewers that the puck was glowing. Sportvision is doing the same thing to your favorite NASCAR race cars. As you watch the race on TV, commentators choose a car that they are talking about. Then, using GPS satellite receivers in car sensors and television cameras, the RACEf/x system tracks that car and places a glowing halo around it. Acoustic levitation allows small objects, like droplets of liquid, to float. Unless you travel into the vacuum of space, sound is all around you every day. But most of the time, you probably don't think of it as a physical presence. You hear sounds; you don't touch them. The only exceptions may be loud nightclubs, cars with window-rattling speakers and ultrasound machines that pulverize kidney stones. But even then, you most likely don't think of what you feel as sound itself, but as the vibrations that sound creates in other objects. The idea that something so intangible can lift objects can seem unbelievable, but it's a real phenomenon. Acoustic levitation takes advantage of the properties of sound to cause solids, liquids and heavy gases to float. The process can take place in normal or reduced gravity. In other words, sound can levitate objects on Earth or in gas-filled enclosures in space.|You’re actually accomplishing a lot less when multitasking than if you focus on one main goal. It's probably time to strike "excellent multitasker" from your resume in favor of something with a more positive implication. That's right, although trying to do two or more things at a time seems like it would be beneficial in today's hyper-productive workforce, science (with a dash of common sense) indicates that you're actually accomplishing a lot less when multitasking than if you focus on one main goal. Dr. Melissa Gratias. What we commonly refer to as multitasking is better described as task-switching because the brain is not capable of intently focusing on two serious tasks at the same time. Switching cost refers to the cognitive price you pay each time you switch tasks. Whenever you transition from one task to another it takes a moment for your brain to becoming fully engaged in the activity. gay jokes

















































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