I'm pretty sure I've searched those terms myself, looking up how high and low explosives are used as detonation lenses in atomic bombs.

I also looked up whether PLA can be made conductive and if it shows up normally in x-rays, to determine if I could legally 3D print the lower receiver for a handgun in my state.

...come to think of it, I wouldn't be surprised if I tripped some queries, and they just realized I'm an insatiably curious but harmless nerd and left me be.