Science

Physicists Discover a Simple Fluid That Can Crack Like Glass

2 min read · 2026-07-12

Pour honey fast enough and you'd expect a splash, not a snap—yet physicists just watched a plain, springless fluid crack apart like glass, breaking a rule scientists trusted for decades.

0units of elasticity the cracking fluid had

The facts

  • 1Physicists observed cracks forming in a simple, non-elastic fluid, something long thought to be impossible for ordinary liquids.
  • 2Liquids normally flow smoothly around objects, while only solid, springy materials were believed able to fracture under stress.
  • 3This fluid had no elastic 'memory' or springiness, yet it still split into clean crack lines when stretched quickly enough.
  • 4The finding challenges the long-held idea that elasticity is required for any fluid to fracture instead of just flowing.
  • 5Better fracture models could improve fields like oil drilling, food processing, and manufacturing, where fluids sometimes crack unexpectedly.

Why it matters

If simple fluids can fracture without elasticity, engineers and scientists may need to rethink models used in drilling, 3D printing, and food production where liquids behave unpredictably under fast stress.

Sources

  • Quanta Magazine
  • Simons Foundation

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