Wonderopolis

Why Do Some People Need Glasses?

Today’s Wonder of the Day is creating a spectacle in Wonderopolis. Why don’t you join us? It’d be so nice to see you.

#113

Why Do Some People Need Glasses?
How Was the Telescope Invented?

When you look through today’s Wonder of the Day, you won’t believe your eyes!

#1606

How Was the Telescope Invented?
How Do Contact Lenses Work?

You can see right through today’s Wonder of the Day!

#1422

How Do Contact Lenses Work?
How Does a Magnifying Glass Make Things Appear Bigger?

Caution: today’s Wonder of the Day may appear bigger than it actually is!

#1396

How Does a Magnifying Glass Make Things Appear Bigger?
How Does a Round Camera Lens Produce a Rectangular Picture?

Say "Cheese!" Wonderopolis goes behind the lens today!

#1311

How Does a Round Camera Lens Produce a Rectangular Picture?
How Does a Submarine See Above Water?

Today’s Wonder of the Day may be underwater, but we think you’ll still be able to see it!

#624

How Does a Submarine See Above Water?
Where Is the Tallest Lighthouse?

Today’s Wonder of the Day will help light your way!

#846

Where Is the Tallest Lighthouse?
Where Do Red Eyes Come From?

Look carefully! Today’s Wonder of the Day may be gone in a flash.

#390

Where Do Red Eyes Come From?