Relationship between taste and smell
Think of all the wonderful sensations taste can impart to us – the delicious Thanksgiving turkey and gravy, mashed potatoes, cranberry sauce and pumpkin pie! Coffee, chocolate, lush strawberries – the list goes on and on! Receptors on our tongues bind to chemicals in our food and relay the information [...]
Your brain combines information from your eyes in surprising ways.
You have two eyes, yet you see only one image of your environment. If your eyes receive conflicting information, what does your brain do? Do receptors in the eye act independently, or do they influence each other? By looking through some simple tubes made from [...]
Create giant bubbles
Bubbles are fascinating. What gives them their shape? What makes them break or last? What causes the colors and patterns in the soap film, and why do they change?
Measuring cups and spoons. The strong mutual attraction of water molecules for each other is known as surface [...]
To see, or not to see
The eye’s retina receives and reacts to incoming light and sends signals to the brain, allowing you to see. There is, however, a part of the retina that doesn’t give you visual information. This is your eye’s blind spot.
One 3 X 5 inch (8 x 13 cm) card or [...]
Stare at color and see it change.
You see color when receptor cells (called cones) on your eye’s retina are stimulated by light. There are three types of cones, each sensitive to a particular color range. If one or more of the three types of cones becomes fatigued to the point where it responds less [...]
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