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Stylized blueprint portrait of Robert Hooke

Robert Hooke

1635 – 1703

Elasticity's founder: as the extension, so the force.

A polymath of the early Royal Society, Hooke gave us the law of elasticity in 1678 — as the extension, so the force — the foundation of all of strength of materials. He also coined the word 'cell' and did pioneering work in microscopy and astronomy.

Famously prickly and in lifelong rivalry with Newton, Hooke nonetheless supplied the linear spring relation behind the spring, beam, and stress calculators here.

Portrait: a stylized blueprint-line rendering, not a photograph.

Contributions in the toolbox

  1. 1678

    'Ut tensio, sic vis' — the linear spring law published.

    Coil Spring Rate
  2. 1678

    Linear elasticity — 'ut tensio, sic vis'.

    Axial Stress & Strain
  3. 1678

    The linear spring — the oscillator's restoring force.

    Natural Frequency (Spring–Mass)

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