Differential Works
Cut open an ideal automotive differential and control its carrier, spider and two wheel speeds.
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Slow, step and inspect a modeled lever escapement through unlock, impulse and free-swing phases.
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Lockstitch Theatre
Orbit a live 301 lockstitch cutaway, inspect five modeled parts, freeze four formation beats and shift the interlock through fabric.
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Four Signals
Solve three-dimensional receiver position and clock bias from four modeled GPS pseudoranges.
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Zipper Works
Operate a transparent Y-channel, inspect five modeled part families and close 36 independent elements past a removable pair.
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Space Elevator
Ride a cable to orbit: scrub a cinematic ascent up a carbon-nanotube tether from blue sky to weightlessness at geostationary altitude, watching gravity fade to zero as Earth becomes a marble below.
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Span Drive
Build mixed-material bridges and carry six gravity-tuned vehicles across 100 handcrafted physics challenges.
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