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Recursos > eyes

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Seeing Straight and Responding Quickly: Peripheral vs. Central Vision

Discover how quickly our fingers respond to what our eyes se. Learn the anatomical and physiological differences between central and peripheral visual systems. Learn about the functions of the photo ...

Spectrum Spinners

Hipervinculo Física

Spectrum Spinners

Demonstrate that white light is a blend of the spectrum colors (red, orange, yellow, green, blue, indigo, and violet) and investigate how certain color combinations can produce other colors.It is an e ...

Retinal Blind Spots

The lens of the eye bends light so that the light can enter the eye through the pupil. After entering the eye, light passes through the vitreous body – which most people think of as the eyeball. The r ...

Long Distance Short Distance Eyesight

Determine how age affects the speed that someone can change the focus of their eyes between near sightedness and far sightedness.It is an educational content by clicking on the title ...

Onions and Lachrymal Glands

This project is about exploring why onions make people cry and what can be done to prevent this reaction. The goal is to learn about enzymes in onions and lachrymal glands in the eye.It is an educati ...

What Affects the Appearance of Afterimages?

This project is about after-images and what possibly affects them. An after-image is an image that is generated in the eye and stays with you even after you have stopped looking at the object. Human s ...

Optical Illusions

The eye and brain are both easily fooled. There are many kinds of optical illusions. Some involve color and/or contrast. Others use perceived shapes. Still more require the image to move to create the ...

What Causes Dilated Pupils?

Your eyes are amazing organs. Look in the mirror, and you’ll see three colors in your eyes: the white part (sclera), the colored part (iris), and a small black dot (the pupil).The iris helps control t ...

Seeing With Your Brai? Basic

Discover what optical illusions are and how they demonstrate the role of the brain in vision.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged i ...

Seeing Re? Basic

Hipervinculo Física

Seeing Re? Basic

Learn how a middle school student applied the technological design process to invent a device that strengthens eye muscles and prevents eyestrain.

It is an educational content of CK-12 Foundation (to a ...

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