In an age when nukes existed but pocket calculators did not, the potential damage of a nuclear strike could be quantified using cardboard slide rules like this one.
Generally, the government doesn’t meddle too much in Amish affairs—it doesn’t make them educate children after the eighth grade, for instance, ’cause of the First Amendment and all that. So it’s kind of surprising to see many Amish threaten to quit farming in a battle with the government over lojacking their livestock with the Mark of the Beast.