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Welcome back to Cool Stuff Ride Home.

I'm Reggie Rizu alongside Marcus Paff.

On today's episode, what do you say when you get hurt?

We dive into the research around the universal language of pain and how one company is making

strides towards the first nuclear fusion reactor.

Plus, on this day in history, the announcement that helped shape the U.S. using the philosophy

of Manifest Destiny.

That's all coming up on cool stuff.

Turning first to the Scientific American and author Alison Parthal. What would you say if you suddenly stubbed your toe on a doorframe? Depending upon how much it hurt, you might cry out

in pain, unleash a stream of expletives, or utter a very specific exclamation such as ouch or owl.

Most languages have a word that serves as interjection for expressing pain.

In Mandarin, it's Ayo, in French, it's Ayi, and in several indigenous Australian languages,

...