在弗兰克·索看来,目前使用的大多数夜视设备装着一大堆电子元件,需要几千伏特的工作电压。为了让画面更加逼真,夜视镜的镜头与镜头之间必须保持真空状态,因此整个装置比较沉重。
Most night vision devices today use massive amounts of electricity -- often several thousand volts, according to So -- and heavy, glass lenses that maintain a vacuum to make the night come alive.
电浆每立方公分大约含有1018个电子(一般的数量),可以产生峰值电场高达每公尺1000亿伏特的电磁波。
A plasma containing 1018 electrons per cubic centimeter (an unexceptional number) can generate a wave with a peak electric field of 100 billion volts per meter.
电浆每立方公分大约含有1018个电子(一般的数量),可以产生峰值电场高达每公尺1000亿伏特的电磁波。
A plasma containing 1018 electrons per cubic centimeter (an unexceptional number) can generate a wave with a peak electric field of 100 billion volts per meter.
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