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    Here is an archive documentary telling the story of the London Underground railway system right from when the first line opened in 1863 up to 1994 when this documentary was published.

    The Story of London's Underground


    Here is an archive documentary telling the story of the London Underground railway system right from when the first line opened in 1863 up to 1994 when this documentary was published.

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    See what happens if you leave a tooth in a glass of Soft Drink for 24 hours? Does it dissolve or not?
چی ڕوو ئەدات ئەگەر ددانێک لە خواردنەوەیەکی گازیدا هەڵبگریت بۆ ماوەی ٢٤ کاژێر؟

It doesn't dissolve

    What happens to a tooth if you leave it in Soft Drink for 24 hours?


    See what happens if you leave a tooth in a glass of Soft Drink for 24 hours? Does it dissolve or not? چی ڕوو ئەدات ئەگەر ددانێک لە خواردنەوەیەکی گازیدا هەڵبگریت بۆ ماوەی ٢٤ کاژێر؟ It doesn't dissolve

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    Showing how Phosphoric acid (E338) dissolves the enamel of a wisdow tooth over time. The tooth was soaked in cola. In three months all the enamel was gone.
More info of the experiment here:
http://sol

    How colas dissolve teeth enamel


    Showing how Phosphoric acid (E338) dissolves the enamel of a wisdow tooth over time. The tooth was soaked in cola. In three months all the enamel was gone. More info of the experiment here: http://sol

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    FRANCE 24 live news stream: all the latest news 24/7

Subscribe to France 24 now http://f24.my/YouTubeEN

Watch France 24 live news: all the latest news live broadcasted  from Paris, France.
Le DIRECT

    FRANCE 24 live news stream: all the latest news 24/7


    FRANCE 24 live news stream: all the latest news 24/7 Subscribe to France 24 now http://f24.my/YouTubeEN Watch France 24 live news: all the latest news live broadcasted from Paris, France. Le DIRECT

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