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兩百年前早在十八世紀就知道,电火花不知怎的能使物質起变化:罌粟花受到它的作用会变色;一小塊紅色的朱砂顏料,放在萊頓瓶的火花当中,会出乎意外地分解出銀色的水銀滴來;封住玻璃管的一头,而把开的一头浸在水中,并使电火花通过管內,管內的空气容積就会縮小,而水里就出現一种什么酸味。电也不讓水保持安寧而把它变为气体;如果讓电火花通过这些气体,它就啪的一声消失,又变成了水。这些令人驚奇的現象,有的是科学家偶然碰到的,有的是它們特意去引起來的,但是不論怎样,都是同样难解。早在1765年,我們偉大的同胞
Two hundred years ago, as early as the eighteenth century, it was known that sparks somehow changed the material: poppies were discolored by its effect; a small piece of red cinnabar was placed in the sparkle of the Leiden bottle, Accidentally breaking down the silver droplets of mercury; sealing one end of the glass tube, and dipping the open end in water, and passing sparks through the tube, the volume of air in the tube will be reduced, and water will appear in the tube. What kind of sour taste. Electricity does not allow water to remain calm and turn it into gas; if sparks are allowed to pass through these gases, it will disappear with a bang and become water again. Some of these amazing phenomena were accidentally encountered by scientists, some of them deliberately caused, but in any case, are equally difficult to solve. As early as 1765, our great compatriots