How Do We Hear Sounds?
How Do We Hear Sounds? When sounds are made, they set up movements in the air. These movements are called sound waves. The cup-like shape of the outer ear collects the...
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How Can Ice Cream Make Your Teeth Hurt?
How Can Ice Cream Make Your Teeth Hurt? Sometimes a bite of ice cream will make your teeth hurt or give you an “ice cream” headache. The nerves in your...
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Why Does an E-mail System Require Servers?
Why Does an E-mail System Require Servers? An e-mail system consists of two different servers running on a machine. One is called the SMTP server, where SMTP stands for...
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Why Do We See Stars When We Bump Our Heads?
Why Do We See Stars When We Bump Our Heads? The “Stars” we see if we receive a hard blow on the head are really a sensation of light caused by the nerves of the eye....
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Where Does Pepper Get Its Heat from?
Where Does Pepper Get Its Heat from? When you eat a pepper, capsaicin, a chemical present in the pepper comes in contact with pain receptors in your mouth. These pain...
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