MIT's New Robot Cheetah Is Terrifying

MIT's New Robot Cheetah Is Terrifying

The future is here — and it's apparently a robot cheetah.

MIT's cheetah robot, designed to mimic the form of the animal and emblazoned with cheetah spots, can run unleashed and untethered — without support wires — at 10 mph. With a potential to outpace human running records at 30 mph, MIT's achievement will scarily exceed human capability. Funded by DARPA, the cheetah's quiet, functional and swift technology will likely be used in rescue missions. 

"Our robot can be silent and as efficient as animals," Sangbae Kim, associate professor of mechanical engineering at MIT, told the university's News Office. "The only things you hear are the feet hitting the ground. This is kind of a new paradigm where we're controlling force in a highly dynamic situation. Any legged robot should be able to do this in the future."

Source: YouTube

This is a remarkable development in the robotics fieldespecially considering that the team behind this beast based it on the movements of the world's fastest land animal. This is the latest in several steps toward developing robots that mimic natural locomotion without human aid, from the likes of Harvard's soft robot that functions without human communication or Boston Dynamics' Wildcat, which ran unassisted outdoors at 16 mph.

Kim said that unlike other robots, the cheetah isn't weighed down or slow but moves with agility and stability. Additionally, the "cheetah-bot" can sprint over hurdles as well, jumping over obstacles as high as a foot.

"Most robots are sluggish and heavy, and thus they cannot control force in high-speed situations," Kim said. "That's what makes the MIT cheetah so special: You can actually control the force profile for a very short period of time, followed by a hefty impact with the ground, which makes it more stable, agile, and dynamic."

How does it work? Kim and his colleagues built a "custom-designed high-torque-density electric motor." They developed an algorithm for a leg's exerted force while running based on how much time the leg is on the ground and in the air. That calculation enabled the team to control the robot's speed and vertical leap. 

Kim compared the approach to running with one famous Jamaican sprinter. 

"Many sprinters, like Usain Bolt, don't cycle their legs really fast," Kim said. "They actually increase their stride length by pushing downward harder and increasing their ground force, so they can fly more while keeping the same frequency." 

The takeaway: Robots are no longer a thing of science fiction; they are very capable and increasingly independent machines. Robots like MIT's cheetah are becoming so common that there's even a case being made that the U.S. now needs a Federal Robotics Commission. But MIT's achievement means that we may finally have an agile, effective robot who can actually perform tasks without human input in the field. The cheetah-bot is boldly taking its first steps into the world — and it's totally unrestrained. 

h/t Gizmodo

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Jenna Kagel

Jenna Kagel covers global and national social injustices. She also focuses on political dysfunction, the intersection of money and policy, and the US criminal justice system.

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