Comments by "raw beef" (@-whackd) on "TED-Ed" channel.

  1. Lithium is not even the main chemical component in a lithium ion battery. Plus batteries can be recycled.
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  2. When I lived in Korea I could see it in public. All the grandmothers and grandfathers there havs wide mouths with no crowding of their teeth, and nearly everyones grandparents had their wisdom teeth come in. My grandmothers did too, and she was from a village in India. 2 generations of processed foods later and everyone needed their wisdom teeth taken out.
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