What Were the Earliest Building Materials Made Of?
What Were the Earliest Building Materials Made Of? The very first building materials were probably leaves, branches, and animal hides. However, these did not last very...
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Why Is Cheddar Cheese Orange?
Why Is Cheddar Cheese Orange? Cheddar cheese is a relatively hard, yellow to off-white, and sometimes sharp-tasting cheese originally made in the English village of...
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Why Are Scissors an Ancient Tool?
Why Are Scissors an Ancient Tool? Man’s earliest implements were sharpened stones, from which the modern scissors have evolved. Scissors first appeared in the Bronze...
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Who Was Antonie Philips Van Leeuwenhoek?
Who Was Antonie Philips Van Leeuwenhoek? Antonie Philips van Leeuwenhoek (1632-1723) was a Dutch scientist whose experiments with microscopes led to his becoming the...
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Why Do We Say That Plants Provided Early Man with Ropes?
Why Do We Say That Plants Provided Early Man with Ropes? From the earliest times, ropes have been used for many things – for hunting, pulling, fastening,...
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What Is a Bungalow?
What Is a Bungalow? The term is first found in English from 1696, where it was used to describe “bungales or hovells” in India for English sailors of the...
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How Did the Doctors’ Hippocratic Oath Originate?
How Did the Doctors’ Hippocratic Oath Originate? The Hippocratic Oath binding physicians to observe the medical code of ethics is named after Hippocrates (about 460-377...
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What Makes Wrinkles?
What Makes Wrinkles? Just as clothes hang in folds when they are old and have been stretched and washed a lot, so does the skin. The skin ages in five different ways....
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Why Are Young Babies Fed on Milk?
Why Are Young Babies Fed on Milk? Young babies are fed on milk because it is their natural food. The females of all backboned animals whose young are nourished with...
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When Does the Brain Begin to Decline?
When Does the Brain Begin to Decline? The brain begins to show signs of decline after a certain proportion of the nerve cells or neurons of which it is formed have...
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