In college I worked in the chemistry lab part time. We decided to take on the task of cleaning and organizing it. Along with countless bottles of chemicals so old the labels had corroded off, we found 3 bottles of mercury with scotch tape for lids.
We had no idea what to do with that mess, so our professor took us to a seminar called "So you spilled a little mercury". There they demonstrated, using the same method used in the video, how much vapor truly comes off of a small amount of mercury; it looked like the steam from a mug of hot coffee. They told us that a drop of mercury the size of a pea is enough to condemn a house; well, how much mercury do you think you have in each tooth? In the video, they say the silver amalgam is 50% mercury!
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