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Superfluid spirals: Scientists control Kelvin waves for first timeIn a new study published in Nature Physics, researchers have developed the first controlled method for exciting and observing Kelvin waves in superfluid helium-4. First described by Lord Kelvin in ...
It's a first for me." Anne Wilkie posted on X. What she saw was a Kelvin-Helmholtz wave cloud, named after Hermann von Helmholtz, who discovered the atmospheric instability that leads to this ...
The pleasant rhythm of waves lapping at the lake shore is caused by wind blowing over the water at a faster speed than the ...
This causes the cloud to take on the shape of rolling waves. Called Kelvin Helmholtz clouds, or just wave clouds, these clouds are a sign of turbulence in the air. The cloud’s name comes from ...
A woman in Calgary, Alberta, Canada, saw a strange, wavy cloud in the sky on Feb. 22, 2025, and took to X, formerly known as Twitter, to crowdsource an answer. "Does anyone know what is happening here ...
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