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August 22, 2012

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Susan Shea

Camille, I'm sitting here with my about-to-start-third grader, who said, when I read it, "Oh, I already knew about that." I'm not sure either he or I REALLY knows the why of it - thanks for getting us started on the topic.

Camille Minichino

Fun! See if he likes the video - it shows how the image is formed by tracing the rays.

Ann

I remember when I showed my kids this "spoon trick" way back when. They were fascinated! I didn't get into a "real/virtual" discussion with them about it, though... :-)

Camille Minichino

Good training, Ann! No wonder they're both so smart!

Michael A. Black

I guess they need to change the title of that show from Are You Smarter Than a Fifth Grader to a Third Grader.

Camille Minichino

The truth, Michael!

Mysti

Wow...I balance a spoon on my nose, but never looked at my reflection. You can't capture the right side up version? How can I be this old and not know that?

Camille Minichino

You might remember an optical bench, Mysti, where you use a meter stick as a "bench" and move lenses and "objects" (usually a piece of cardstock with an arrow drawn on it), and a screen (another piece of cardstock), and light source, back and forth and look at the image. If you can pick up an image at any point on the bench, on the card, it's "real."
Here's a link to a drawing of a set up: http://www.scientificsonline.com/economy-optical-bench.html

Camille Minichino

oops, I think the link is to a kit that you can by, not a drawing.

rita lakin

Sneaky pete. you get math and physics in every chance you get.
wish I'd had you for my math teacher. maybe I wouldn't have failed.

Camille Minichino

Hey, Rita, you noticed the physics huh?

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