Feb 18, 2020

The Fastest Spinning Object Ever Could Detect the Elusive Vacuum Friction

Posted by in category: particle physics

Scientists at Purdue University have made the fastest spinning object ever, a tiny ball of silicon dioxide that rotates 300 billion times per second. They positioned the microscopic silica balls in a vacuum and blasted them with two different lasers that induce the spin.

In 2018, scientists at the Institute for Photonics at ETH Zurich (a small, elite science university) created the first billion-RPM object and said they hoped it would accelerate, so to speak, the discovery of wild and unpredictable things. And that has certainly borne out, because the Purdue team has shown that even in a near vacuum, the spinning silica particles create measurable friction.

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