手机是现代人类必备的工具之一,为了给手机充电,科学家们一直希望找到更简便的方法。比如有人发明了可以在野外边煮食物、边为手机充电的火炉;还有人设计出可以用wifi信号为手机充电的便携式装置,等等。最近,有人突发奇想,打起了利用大脑给手机充电的主意。从生物学上来说,神经系统在将各种信号发送到大脑时,就会产生电流的流动,这就是说,大脑拥有着几千亿个导电“电线”。根据美国华盛顿大学的生物物理学家伯蒂尔·希勒的说法,每一次一个神经元发射信号时,就会产生一分钟的电流 Mobile phones are one of the essential tools for modern humans. In order to charge mobile phones, scientists have always wanted to find a more convenient way. For example, someone invented a stove that can charge for mobile phones while cooking food in the wild, and someone designed a portable device that could charge the phone with a wifi signal. Recently, some people whim, hit the idea of ​​using the brain to charge the phone. Biologically, the nervous system produces a flow of electricity as it sends signals to the brain, which means that the brain has hundreds of billions of conductive “wires.” According to Betil Shiller, a biophysicist at Washington University in the United States, a single minute of current is generated each time a neuron fires a signal