The sun is a giant nuclear fusion reactor, converting hydrogen into helium and releasing massive amounts of energy in the form of heat – and sound. Sound is essentially vibration and needs a medium to travel through.
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Work-life balance
Овечкин продлил безголевую серию в составе Вашингтона09:40
這不是個案。那些曾經斥責子女「別老盯着屏幕」的父母，如今自己卻成了最難放下手機的人，過年回家管控父母手機使用，已成為中國年輕人心照不宣的「新年俗」。