Today I Found Out

Why Olympians Bite Their Medals (2016x159)

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→Subscribe for new videos every day! https://www.youtube.com/user→’s fairly pure, you should be able to leave some teeth marks in it by biting it. The practice of biting precious metals also allowed people to see if perhaps the gold object was really just gold plated, with something like lead at the center. If so, the gold plating could be scraped off with your teeth and, given the often bitten gold coins weren’t that thick, the plating tended to be fairly thin, so you didn’t have to bite too hard to discover whether it was relatively pure gold or not. Want the text version?: http://www.todayifoundout.com/index.php/2012/08/why-do-olympians-bite-their-medals/ Sources: http://www.amazon.com/gp/product/0440508347/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=0440508347&linkCode=as2&tag=vicastingcom-20 http://www.amazon.com/gp/product/0140444130/ref=as_li_ss_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=0140444130&linkCode=as2&tag=vicastingcom-20 http://www.denverpost.com/london2012/ci_21235406/why-medal-biting-running-down-odd-quirks-at http://en.wikipedia.org/wiki/Gold_coin http://sports.yahoo.com/video/why-olympians-bite-medals-221316431.html http://en.wikipedia.org/wiki/Gold http://en.wikipedia.org/wiki/Numismatics http://en.wikipedia.org/wiki/Depleted_uranium http://www.slate.com/articles/news_and_politics/explainer/2006/02/why_do_athletes_bite_their_medals.html http://en.wikipedia.org/wiki/Tungsten http://en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness