h a l f b a k e r y
"Bun is such a sad word, is it not?" -- Watt, "Waiting for Godot"
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Some things, possibly obsidian, get sharper when they
fracture, peraps narrowing from flaking.
I think it could be possible to electron beam, cold or
microwave treat silicon
nitride or artificial diamond drill bits (heads) to do the
thing with micro fracturing. That way at oil wells
mineral applications the drill heads would actually get
sharper, thus lasting longer.
||//...thus lasting longer// - or actually lasting shorter, as they're constantly fracturing
||You need to gain a greater (i.e. non-zero) understanding of how
DU kinetic penetrators act on their target.
||[-] nonexistent comprehension of physics and physical chemistry.
||[8th] I changed it a little, got rid of the depleted uranium