Global News Podcast
US sends diplomats to Syria
Yannick Verbelen
It just looks like a tiny piece of glass that's a few millimetres in size and only 200 micrometer stick. So if you would see it on the street, you wouldn't even bother picking it up because it really does look unspectacular. And the key is in this very unique radioisotope, carbon-14, which is actually a naturally occurring radioisotope. It's formed in the atmosphere.
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