How Your Laptop Charger Conquered the World

Logosofia no Dia a Dia · Apr 17, 2026 · 30m

That slim, universal laptop charger in your bag is a marvel of modern engineering, rendering bulky voltage converters obsolete. This episode digs into the key innovation—the switch-mode power supply—that allows our gadgets to work anywhere from Tokyo to Texas. We also explore the surprising categories of everyday appliances where this global compatibility still fails, and why physics and economics keep them locked to a single voltage. Episode 2270 — myweirdprompts.com/n/2270 (permanent short link: myweirdprompts.com/125004)