Continuing the discussion from Link for discussion of January 2022 update:
The engrave was successful, @dan . Unfortunately (or maybe fortunately), it didn’t pop.
But I had the butter ready, just in case.
Video, 4x speed:
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As soon as you put a hole in the shell the ability to hold the pressure is gone so they cannot pop.
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Oh, yeah. I forgot that’s how popcorn works. 
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Yeah, when the water in the kernel flashes to steam - 
An incredible amount of energy is released in that phase change. It helped power the industrial revolution. Steam pushed trains across the continent.
Most of my life I had thought of steam as what you see coming out of a tea kettle. it’s not, that’s water vapor. if you can see it, it’s not steam. Steam is that 1/2 inch beyond the kettle spout where there is nothing to see, but it will burn you like a torch flame.
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It’s not as impressive as engraving on a grain of rice as @Jules has done, but it’s the smallest thing I’ve ever engraved on . It gave me hope for making use of the large pile of scrap I’m accumulating.
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I am constantly amazed at the tiny detail you can get on a GF!
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