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Physics

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Electric vehicle sales nearly doubled worldwide as automakers rolled out new models. Many consumers bought EVs to avoid burning oil, but others went for the quick acceleration and crisp handling. Shares of Tesla, the world's EV leader, were up more than 40% as of Dec. 22. An order of 100,000 Teslas from Hertz generated outsize enthusiasm from investors. Amazon-backed startup Rivian soared after going public even though it hasn't made a profit.

Punch holes can occur after a plane flies through the cloud if the cloud droplets are supercooled, with their temperatures below freezing.

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The sea ice cover in the Arctic Ocean is a key part of our climate system. The sea ice brightness reflects more solar energy to space than open water.

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This one is for the extremists. Your car has to use more energy to start in the morning if you live in an area where the wintertime temperature routinely drops below zero. Depending on the temperature and the condition of your vehicle, it might struggle to start up at all. You can take some of the stress off by using an engine block heater.

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Quite a few electric vehicles are set to debut in the coming months, and among this group the Ioniq 5 looks to be a standout. It’s about the same size as a typical small SUV and boasts impressive interior space and all of Hyundai’s latest tech features.

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