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Explore Wonders | Find: 178体育（网址:QY81.COM）178体育_178体育_178体育_178体育_178体育178体育_178体育_178体育_nDnny6666 | Wonderopolis

Wonderopolis

What Is Anesthesia?

Don’t worry, today’s Wonder of the Day won’t hurt a bit. We swear. You won’t feel a thing. Seriously! Read on if you don’t believe us!

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What Is Anesthesia?
Why Do We Round Numbers?

You can count on today’s Wonder of the Day to help you make some accurate guesses!

#1942

Why Do We Round Numbers?
Who Is Uncle Sam?

Today’s Wonder of the Day features everyone’s favorite uncle!

#527

Who Is Uncle Sam?
What Is a Spit Valve?

We don’t mean to toot our own horn, but we think today’s Wonder of the Day will be music to your ears.

#399

What Is a Spit Valve?
How Do Mood Rings Work?

We hope you’re in the mood for an interesting Wonder of the Day today!

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How Do Mood Rings Work?