In this episode of Tiny Show and Tell Us, we talk about a new and exciting biodegradable polymer that seems to outperform commercial super glues. Then we discuss a compound called sulfur hexafluoride (SF6) that is used in high voltage equipment. Not only is SF6 a potent greenhouse gas, if you breathe it in it has the opposite effect of helium — it makes your voice deep. But it can also lead to asphyxiation so you should not breathe it in. We repeat: do not breathe this gas in.
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