Here's a Question!

Announcer: Frostbite Theater presents... Cold Cuts! No baloney!

Joanna and Steve: Just science!

Joanna: Hi! I'm Joanna!

Steve: And I'm Steve!

Joanna: Here's a question for you...

Steve: The image of a lightbulb is projected onto the back of a pinhole camera.

Joanna: The right half of the pinhole is then covered with a piece of aluminum foil.

Steve: What happens to the image?

Joanna: Does the right half disappear?

Steve: Does the left half disappear?

Joanna: Is the whole image visible, but it's dimmer?

Steve: Or, is the whole image visible, but it's brighter?

Joanna: Pause the video now if you'd like to think it over before we show you what happens.

Joanna: What do you get when you cover part of a pinhole? You get a smaller pinhole.

Steve: Since it's smaller, less light gets in, so the image is dimmer.

Joanna: But, it's still a pinhole, so you still get a complete image.

Thanks for watching. I hope you'll join us again soon for another question!