Why does a flame not "fall" under the action of gravity? What happens to flames under weightlessness?
We know that all objects on Earth are subjected to the action of gravity. If there were no gravity, the entire Earth would be in chaos...
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I am in Guangzhou and can no longer afford to ride a shared bike
I'm a bit curious: how many people are still riding shared bicycles among social animals like me?It seems that the tide of the internet has receded, and few people care about the story of shared bicycles. And as aAs an ordinary office worker, sharing a bike has still become one of the connections in my daily lifeImage source networkI am probably a seasoned user of shared bicycles: from the initial Little Yellow Car OFO and Orange Car Mobil, to the only remaining three giants - Meituan Bicycle, Haro Bicycle, and Qingju Bicycle;Over the past 7 years, almost every working day, shared bicycles have connected my social and livestock journey in GuangzhouI initially used Xiaohuangche OFO and paid a full deposit of 199 yuan...
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