River as a Mirror of the Universe ⚡ экспресс
Original: "Laboratory rivers extremize friction and are cosmological analogues"
The profile of a riverbed follows the same equation as the expansion of the Universe.
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A riverbed’s shape obeys a cosmic equation! It turns out that a river’s bottom profile follows the same law as the evolution of a negatively curved Universe. This means water flows to maximize friction. Perhaps this approach could help design more efficient canals or predict floods.
🎯 In a laboratory river, sand and water eventually settle into the very shape that most strongly slows the flow — as if by mutual agreement, without any outside interference.