42:I[185,["/_next/static/chunks/08z4tkzvltetr.js","/_next/static/chunks/121~yigv24_j6.js","/_next/static/chunks/0jo3du-icy6v2.js","/_next/static/chunks/15cy49d~_zsjj.js","/_next/static/chunks/0..ktetnpeix7.js","/_next/static/chunks/08cz-ztcfuxe..js","/_next/static/chunks/0i6hzvr84kc1r.js"],"SendEmailButton"] 48:I[45269,["/_next/static/chunks/08z4tkzvltetr.js","/_next/static/chunks/121~yigv24_j6.js","/_next/static/chunks/0jo3du-icy6v2.js","/_next/static/chunks/15cy49d~_zsjj.js","/_next/static/chunks/0..ktetnpeix7.js","/_next/static/chunks/08cz-ztcfuxe..js","/_next/static/chunks/0i6hzvr84kc1r.js"],"SignupCTA"] 3b:["$","h1",null,{"className":"max-w-[22ch] font-display text-[clamp(32px,4.5vw,48px)] font-medium leading-[1.05] tracking-[-0.02em] text-[color:var(--fg-1)] text-balance","children":"Why doesn't the USA fully use the Metric system?"}] 3c:["$","div",null,{"className":"flex flex-wrap items-center gap-x-4 gap-y-1 font-mono text-[12px] uppercase tracking-[0.1em] text-[color:var(--fg-3)]","children":[["$","time",null,{"dateTime":"2023-07-26T06:00:00.000Z","children":"July 26, 2023"}],["$","span",null,{"aria-hidden":true,"children":"·"}],["$","span",null,{"children":"00:18:11"}],false]}] 43:T412,

How was the Metric system invented? What are feet and meters based on? Which Measurement system is better?

Grown-Ups:

Be a better you in 2024 with Babbel, the science-backed language-learning app that actually works. Get 55% off at Babbel.com/SMARTED. Rules and restrictions may apply.

Say hello to HelloFresh! Go to HelloFresh.com/smartedfree and use code: smartedfree for FREE breakfast for life! One breakfast item per box while subscription is active.

Have you started your FREE TRIAL of Who Smarted?+ for AD FREE listening, an EXTRA episode every week & bonus content? Sign up right in the Apple app, or directly at

Get official Who Smarted? Merch: tee-shirts, mugs, hoodies and more, at Who Smarted?

For more information about our other projects, including bespoke branded podcasts and series for your company, check out Atomic Entertainment.

44:Tb21,