WASHINGTON/BEIJING (Reuters) - The United States said on Monday it still did not know the origin or purpose of three aerial objects that its military shot down over the weekend, as Washington and ...
Chemists and physicists shed light on a crucial aspect of friction: how things begin to slide. Using fluorescence microscopy and dedicated fluorescent molecules, they are able to pinpoint how and when ...
Scientists have made an insight into superlubricity, where surfaces experience extremely low levels of friction. This could benefit future technologies by reducing energy lost to friction by moving ...
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