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Scientific workbench

Casimir pressure

What changes when the gap shrinks?

Casimir pressure

What changes when the gap shrinks?

An ideal-plate comparison. The two surfaces feel opposite forces; the assembly does not gain thrust.

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|P| = π²ℏc / (240d⁴)
Illustrative model · not measured data · not to scale

Check: at 100 nm the ideal pressure magnitude is about 13.0013 Pa. Finite conductivity, roughness, edge effects and temperature are omitted. This tool is a sensitivity calculation, not a material-specific prediction.

Research basis: H. B. G. Casimir, 1948.

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