What Is a Binary System and Why Do Computers Use It?
What Is a Binary System and Why Do Computers Use It? Computers and other electronic systems work faster and more efficiently using the binary system, because the...
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How Does a Kidney Machine Work?
How Does a Kidney Machine Work? A kidney machine filters the poisons from the blood of a person whose kidneys are not operating properly. The machine also known as the...
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Where Are the Metatarsals?
Where Are the Metatarsals? The metatarsal bones are found in your feet. The foot is made up of the tarsus, or ankle, which consists of seven bones; the metatarsus,...
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Why Do We Grow Old?
Why Do We Grow Old? Scientists have evolved three main theories to explain why we grow old. The first concerns the loss of cells or of irreplaceable parts. Brain cells...
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When Were Antiseptics First Used?
Antisepsis was recommended by Hungarian physician Ignaz Semmelweis in 1847 but, tragically, he was ignored. Antiseptics were first used in 1865 by a surgeon called...
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Why Do Animals Need Oxygen?
Why Do Animals Need Oxygen? We must have oxygen to live. Every living animal cell needs oxygen for its vital metabolic activities (the process of converting fuel to...
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Where Is Your Funny Bone?
Where Is Your Funny Bone? Your funny bone is in your arm. It is the long, almost straight nerve which extends from your shoulder to your elbow. At the top end it is...
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Why Can You Not Breathe When You Swallow?
Why Can You Not Breathe When You Swallow? You are not able to breathe when you swallow because your respiratory (breathing) system is closely linked to your alimentary...
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What Is the Uvula?
What Is the Uvula? The uvula is a small mass of muscle covered by mucous membrane that hangs down from the middle of the soft palate at the back of the mouth. The soft...
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Why Do You Stir Some Drinks and Shake Others?
Why Do You Stir Some Drinks and Shake Others? The debate of shaken versus stirred drinks is hot, especially when you’re looking through cocktail recipes...
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