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6 posts tagged with Physics by jjray.

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6 posts tagged with Physics by jjray.

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## Ice

## A Shory Biography of Emmy Noether

## riverrun, past Eve and Adam's, from swerve of shore to bend of bay, brings us by a commodius vicus of recirculation back to Howth Castle and Environs.

to talk about the concept of "time" before the big bang; the Cyclic Universe Theory proposes an alternative to the predominant Inflation Theory that led to this intuition. Now Gurzadyan and Penrose have observed low-variance rings in the CMB, supporting the notion that it makes sense

## The Circular Jump is a White Hole

Circular jumps (previously) form when you turn on your tap and the water lands in a thin circular disk with a raised lip. Jannes

*et al*have now shown that circular jumps are examples of hydrodynamic white holes: waves can escape the jump, but not enter it. [more inside]## Gravity is Optional

Physicist Erik Verlinde proposed in a recent paper that the force of gravity can be derived from the principles of thermodynamics. NY Times explains.

*[Physicist Lee] Smolin called it, “very interesting and also very incomplete.”*## The Unreasonable Effectiveness of Mathematics in the Natural Sciences

The Unreasonable Effectiveness of Mathematics in the Natural Sciences is a 1960 essay by Eugene Wigner. Via Steve Strogatz.

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