Humanoid robots fall apart: the physics of a head-kicking blow
Humanoid robots are now fighting each other with kicks. A technical analysis shows impact forces reaching 800 Newtons, enough to tear a head clean off.
English · Original discussion in Spanish · Published
Humanoid robots fall apart: the physics of a head-kicking blow
The first videos of fights between humanoid robots are already circulating on social media. A well-placed kick rips the opponent's head off and sends it flying. It looks like Terminator, but the reality is more prosaic.
The mechanics of the blow
These prototypes carry hydraulic or electric servos delivering 150 to 300 Nm of torque at the main joints. According to calculations from the technical community itself, the impact of a kick peaks at 500 to 800 Newtons. The victim weighs between 30 and 50 kilos, and its neck is often a separate piece joined with weak fasteners to save weight. The combination of inertia and impact point turns the blow into a shear mechanism that tears through plastics and silicones. It is not brute force: it is bad engineering applied to entertainment.
Between spectacle and engineering
Commentary ranges from fascination with the spectacle to criticism of how fragile the designs are. Some compare them to footballers for how easily they end up on the ground. The absence of weapons, demanded by those who would rather see them wielding machetes, betrays a still-primitive stage. For now, these fights are more exhibition than real competition.
What to expect
If anyone decides to reinforce the joints or boost the servos' power, the picture will change. For the moment, heads flying off is a trick of cheap prototypes, not of ruthless killing machines.
The first videos of fights between humanoid robots are already circulating on social media. A well-placed kick rips the opponent's head off and sends it flying. It looks like Terminator, but the reality is more prosaic.
The mechanics of the blow
These prototypes carry hydraulic or electric servos delivering 150 to 300 Nm of torque at the main joints. According to calculations from the technical community itself, the impact of a kick peaks at 500 to 800 Newtons. The victim weighs between 30 and 50 kilos, and its neck is often a separate piece joined with weak fasteners to save weight. The combination of inertia and impact point turns the blow into a shear mechanism that tears through plastics and silicones. It is not brute force: it is bad engineering applied to entertainment.
Between spectacle and engineering
Commentary ranges from fascination with the spectacle to criticism of how fragile the designs are. Some compare them to footballers for how easily they end up on the ground. The absence of weapons, demanded by those who would rather see them wielding machetes, betrays a still-primitive stage. For now, these fights are more exhibition than real competition.
What to expect
If anyone decides to reinforce the joints or boost the servos' power, the picture will change. For the moment, heads flying off is a trick of cheap prototypes, not of ruthless killing machines.
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Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (17 replies).
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