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Trung Phan
@TrungTPhan
An engineer that built this 400m-running humanoid robot explained the wild form: ▫️initially designed it with human arm swing ▫️but swinging arms too much put heavy load on shoulder joints, led to overheating (and robot couldn’t finish 400m) ▫️robot invented the new running style on its own (hands held up near face to reduce shoulder load while legs could keep trucking) ▫️per Global Times, “in a simulated learning environment…the team gave the robot continuous rewards, and through repeated iteration on the data it gradually settled into a posture that suited it better.” *** Full read here (fascinating): globaltimes.cn/page/202608/13 x.com/ErenChenAI/sta
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CCL
@CCL2K30
OMG what is this style
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Duck Troller
@Duck_Troller
Slowed down the form makes a lot more sense. You can see how it offsets the inertia from the legs swinging. Still looks like mad arm flailing in real-time though.
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程肯
@KenCCheng
Humans run with a crossbody arm swing. You don't see the hands up high, but the elbows. It's just a natural consequence of the shoulder rock. Look at how much more the robots' shoulders rock, the hands follow as a counterbalance.
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JohnL
@johnL_99
Possibly required due to its hips being so wide (some women run this way)? Also, it’s constantly tipping to the left or right - need a better way to maintain balance.
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Alexandre Williams
@thealex
Crazy to think a ROBOT may have just made us humans rethink how to run. It looks ridiculous, of course but something about the swing left to right motion may need to be studied more.
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Jay
@ItsJayRS1
Amazon execs thinking if these bots can hold packages while running and not dropping them.
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Jacques Broquard
@jacquesBroquard
There's a lady in my neighborhood that power walks like this due to what looks like a mobility injury she had at some point in her life. Whatever works!
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Modmax
@modmax0
This is impressive Humanoidrobot are taking over ?
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Modmax
@modmax0
Threadguy watching humanoid robots play tennis in Beijing: “this has gotta be more human than robotic, how technically difficult is this?” 🤖🎾
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@JavidNeru
Somebody in school many years back, used to run exactly like this. He was fairly short and could run very fast.
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Loong🐉
@LoongUp
the arm-restricted gait isn't choreography — the robot invented it because arm swing was destroying its shoulder joints. that's reinforcement learning on a real actuator budget, not a stunt. embodied AI benchmarks are getting weird in the right way.
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Joel A. Adejola
@joeladejola
The other practical constraint was that they wanted to build a machine that could win the race, not simply emulate humans. A few things follow: — Practical humanoids will inevitably diverge, in their mechanics, from ours. — Outcome-based constraints (win a race) seem to
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Văn
@vanveobn
Fascinating insights! It's intriguing how design iterations like the arm swing can lead to unexpected challenges. This adaptive approach not only showcases engineering creativity but highlights the importance of biomechanics in robotics. Can't wait to see the next version!
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