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Physics

Rattleback

The averaged Garcia–Hubbard model shows energy exchange between spin, pitch and roll. Change skew and spin direction to observe asymmetric reversal times.

Rattleback — Actual application image
Actual application image

Try this

Compare both spin directions. Tapping supplies rocking energy. Averaged small-oscillation model; axes show the actual skew. Zero skew removes coupling.

Equations used in the module
Equations
I n′ = −Kp Ep + Kr Er − γ I n
Ep′ = (Kp n − γ) Ep; Er′ = (−Kr n − γ) Er
E = I n²/2 + Ep + Er
Garcia–Hubbard averaged model; Kp/Kr = ωp²/ωr²

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Bridge flutter — Actual application image

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