Arisha on Instagram: "Human metapneumovirus (HMPV) is a negative-sense single-stranded RNA virus of the family Pneumoviridae and is closely related to the Avian metapneumovirus subgroup C. It was isolated for the first time in 2001 in the Netherlands by using the RAP-PCR technique for identification of unknown viruses gr... 日本利用压电瓷砖将脚步转化为电能。这些瓷砖捕捉来自你脚步的动能。当你行走时,你的重量和动作会对瓷砖产生压力。瓷砖会轻微弯曲,从而产生机械应力。 瓷砖内部的压电材料将这种应力转化为电能。每一步都会产生少量电荷,而数百万步结合在一起就能产生足够的电力来驱动LED灯、数字显示屏和传感器。在像涩谷车站这样繁忙的地方,每天大约有240万个脚步为这一系统作出