Each eye is seeing something very different and as your brain tries to make a sensible single image, it combines bits from...

At home 5-11 11-14

When you’re wearing the hat you can only see with one eye at a time. Without your normal, two-eyed, binocular vision you can’t...

At home 5-11 11-14

You'll see the pendulum moving in a circle or ellipse, instead of a straight line. When you put the lens in front of your...

At home 5-11 11-14

When you hold the card close to you and look through the pinhole at some writing on the screen, it should be magnified and...

At home 5-11 11-14

You should see a moving 3D image appear to float within the pyramid. Some light from each image is reflected off of the...

At home 5-11 11-14