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Published on 23 Feb 2013 | over 3 years ago

!!!COOL OPTICAL TRICKS!!! (Optical Hole In Hand Trick)

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!!!COOL OPTICAL TRICKS!!! (Optical Magic Tricks)

Crazy Chris is putting a hole in his hand and shows you how to do a cool optical trick by putting a hole in your hand!

Objective: to understand how your eyes combine images.

Materials Needed:
~ Your Eyes
~ Your Hand
~ Paper Towel Tube

Step 1) Place a paper towel tube, or a toilet paper tube up against one of your eyes.

Step 2) Place you hand and the end of the paper towel tube or in the middle of a toilet paper tube and slowly move your hand towards your face.

You might think that you see with your eyes but you actually see with your brain. As light passes through your eye it actives the rental cells. These cells take light waves and turns it into electrical energy. This signal is sent down a cord known as the optic nerve. This information passes through a part of your brain known a the corpus Col lo sum a portion of the brain that connects both sides of your brain as well as where eye signals cross over to the other side of the brain. here the electrical signals are matched up and similar signals or strong signals get over lapped. The strong image from your left eye and the strong image from your right eye over lap each other which is why you see a hole in your hand. This upside down single image is sent to the back of your brain to an area known as the visual cortex. Here the electrical signals from the bottom of the eye are interpreted as up and the images you see are right side up. For about 1-2 weeks babies see 2 of everything upside-down until the brain is able to get used to the world and form the connections needed to combined and turn the images right side up.

!!!COOL OPTICAL TRICKS!!! (Optical Hole In Hand Trick)

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!!!COOL OPTICAL TRICKS!!! (Optical Hole In Hand Trick)

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