对着大块的金属咬下去,这更像是淘金热时期的人可能做的事情,目的是测试刚淘出来的金光闪闪的石块是否只是黄铁矿或者愚人金。根据莫氏硬度表,人类牙齿的硬度比黄金大但比黄铁矿小。这意味着迅速咬一下真正的黄金,会留下牙印。而使劲咬黄铁矿则可能会毁掉你的牙齿。
The practice also once served to see whether coins were solid gold or just gold-plated over a cheaper metal, Today I Found Out explains.
《今日发现》解释称,这一做法也曾用来判断硬币是纯金的,还是用较便宜的金属镀金的。
With that in mind, it’s likely that Old West/pirate lore led to someone once biting their Olympic medal in a spontaneous, “Is this real life?” moment, and the photographers thought it was cute. Because if someone really was hoping to discover whether that gold medal is pure gold, their smiles would quickly fade.
考虑到这一点,在怀疑“这一切都是真的么?”的获奖时刻,很可能是西方古代或海盗的传说曾使某个人自发地咬了一下奥运金牌,而摄影师认为这个动作很可爱。因为如果真有人希望测试那枚金牌是不是纯金的,他们的笑容很快就会消失。
Olympic gold medals are actually just 1.34 percent gold. The rest is sterling silver. And much of it is recycled silver this time around, which makes the 20-16 Rio medals “the most sustainable ever made,” according to Forbes magazine contributor Anthony DeMarco. DeMarco says the materials that make up a “gold” medal are worth $564.
【英语说奥运:为啥奥运选手老爱咬金牌? 】相关文章:
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