Coronavirus updates: new virus strain may spread faster

Chicago, Pennsylvania now has quarantines for travelers from more than a dozen states. Texas Governor Greg Abbott issued a face-covering mandate statewide. Several Secret Service agents tested positive before Vice President Pence’s trip to Arizona. There is a new strain of the coronavirus that causes COVID-19, and health experts say …

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How to get rid of the coffee stain effect

Credit: University of Twente. The coffee stain effect is a well-known effect in physics and daily life in which a dark colored edge remains when a liquid containing particles evaporates. This is caused by an “avalanche” of particles moving toward the outer edge, scientists at the University of Twente showed …

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Power leads Indy GP practice

A flurry of action closed the only practice session in the NTT IndyCar Series for Saturday’s GMR Grand Prix at the Indianapolis Motor Speedway circuit, and at the end of the 90-minute start, Team Penske Power came on top of the 26 drivers present. . Power’s lap of 1m09.9487s at …

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