推荐回答（2个）
这是假的，盐和水根本就没有发电的可能的，若是水和盐就能发电的话很多山区里的农民就不用点焟点煤油灯了，他们就可能用盐和水发电来点灯照明了，因为这是骗人的把戏，所以盐和水是不能发电的。视屏上上传的用盐和水发电都是骗人的把戏，他把灯点亮的原因是，桌子下放有一台磁感特拉斯线圈机器，这机器启动运中时离近些就可以隔空点亮电灯，只拿一个电灯靠近就能无线传电感应让灯亮起来了，若离得离一些的话就要用磁铁来用磁感的反应来点灯电灯的，他特意做这种把戏出来误导观众的，这些只是表演的花样而已，等于表演魔术一样，总是这些都是假的，骗人的，这种事早几十年前我还是小屁孩的时候都见这些打游击的在街头小巷用这把戏出售他们自制的产品骗取大众们的钱了，这些不懂的老农真可怜，本来都穷了，为了能节省电费用，又以为他们的产品真的这么好，买了后当然被骗了，拿走开后这产品就不能用了，根本就没有电的，现场时见灯亮只是他们身上或包包里蔵有磁感（特接斯线圈）电器在给这些产品无线传感电源而已，以后见这种千万不要去买啊，不然会被骗。
1.我实验的硬币是一角（1997年，铝镁合金），五角（2003年的，钢芯镀铜合金），一元（2004年，钢芯镀镍），另外还借了我妈妈的金戒子和银钩子（项链上的）。
实验产地大概5cm×5cm×1cm的小水池，盐加到饱和为止。结果，万用表探针直接插入水池，电压大约20～30mv
五角硬币和一角硬币间电压，大约70～80mv
五角硬币和一元硬币间电压，大约20～30mv
银钩子和一角硬币间电压，大约10～20mv（可能银钩子太细了）
金戒子和一角硬币间电压，大约700mv～800mv，也就是0.7v～0.8v。金戒子和一角硬币之间的不正当关系着事出乎我的意料，也是所有测试结果中最高的，难道因为金戒子最贵，一角硬币最便宜？当然啦，实际电流不会很大，还得一个个并联加串联才能勉强使用，不过点亮功率超小的发光二极管是没有问题的。假象一下，如果一艘船底部一般用铜，一般用银，直接拿大海做盐水池，这样的船就能得到天然无污染的电力。嗯，等把各种金属都凑齐了再做一次实验吧
2.
准备一个烧杯，加半杯水~加盐进去加到饱和就可以准备锌和铜棒（没有的话可以用铜丝，主要是要用金属性不同的2种金属）（金属活动性参考表：钾钙钠镁铝锌铁锡铅（H）铜汞银铂金）把2种不同活动性的金属放到盐水中（2种不需要接触），露出一部分在空气中此时用万用表与这2种金属测量发现有电流存在
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