Did you know that if you mix two innocent chemicals and light the mixture on fire, the ensuing reaction will give birth to something straight out of Guillermo Del Toro's dream journal? A mixture of mercury(II) thiocyanate and ammonium chromate looks like flour, but if you light it on fire, it'll produce the biscuits of your nightmares.
When the powder is ignited, structures resembling hellish tentacles start to appear, growing rapidly and not stopping until long after you and Mother Nature have both given up trying to make sense of everything you ever thought you knew about reality.
Fortunately for everyone's sanity, once the powder is all burned up, the underworld tendrils stop growing. But that doesn't mean you should try this experiment outside of a laboratory setting, as basically every single facet of this is hilariously toxic to humans. Of course, that didn't stop our intrepid ancestors from selling these (and similarly dangerous) chemicals as toys for children as "Pharaoh's Serpents."
Instead of doing the crazy experiment yourself, there's a Pharaoh's Cursed Cobra LEGO project you can try.
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