也许你要把建造通量电容器的计划搁置下来：实验室下的大爆炸理论模型表明时间旅行也许根本不可能。

You may want to put plans for building that flux capacitor on hold: a "toy" big bang created in the lab suggests time travel may not be possible after all.

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电容器不依靠电-化学转化。 相比电池，电容器能够更快的充电和放电，持续使用时间更长，并且更轻。

Without the chemical-electrical conversion, a capacitor can be charged and discharged much more rapidly than a battery, last longer and weigh less.

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但是，相比电池，电容器储存的能量不足以维持任何比闪光时间长的时间，而闪光时间还不足一秒。

However, in contrast to batteries, a capacitor cannot store enough energy to power anything that lasts longer than a flash — some fraction of a second.

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