the.com/mumetal
the alloy that doesn't block magnetic fields so much as politely redirect them elsewhere
compositionRoughly 80% nickel with iron, copper, molybdenum
name originNamed for mu, the symbol for magnetic permeability
the trickGuides field lines through itself, shielding what's inside
handle gentlyBending or dropping ruins its shielding power
real jobsProtects MRI machines, old CRTs, sensitive lab instruments