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Cake day: October 6th, 2023

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  • The latter. Mercury bromide is highly toxic (I’m pretty sure all mercury salts are highly toxic). Its also a solid, not a liquid.

    But mercury and bromine are the only two liquid elements at room temperature in their elemental form, which is why they’re “water”. One is silver, the other reddish brown and syrupy.












  • Z values are measurement of how many standard deviations something is from the mean. 95% of your values fall between -2 and +2. Most “interesting cases” are about outliers, something that’s very uncommon. If it’s common, you don’t tend to write a paper about it. Nobody cares if someone had a slightly above average tumor, but if they have 50kg tumor, that’s publishable.

    The survivorship bias plane shows a world war 2 chart of where the bullet holes were on planes. The conclusion famously isn’t to armor those parts often hit, but to armor the parts that weren’t hit, because no planes hit there returned to be recorded.