How Did Killer Whales Get Their Name?
How Did Killer Whales Get Their Name? Some people might consider Orcas (formerly known as killer whales), to be unfairly named, since they are tame and playful in...
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Who Started the Diamond Engagement Ring Tradition?
Who Started the Diamond Engagement Ring Tradition? Fiancées can thank Archduke Maximilian of Austria for starting the diamond engagement ring tradition. It all began in...
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Where Does Salt Come From?
Salt comes from lakes, wells, underground mines, and from the sea. Most of the salt that we sprinkle on our food is mined from thick salt beds, or large layers, deep in...
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Do Elephants Really Have Good Memories?
Do Elephants Really Have Good Memories? The theory that elephants have good memories has been greatly exaggerated. The elephant does remember many things, but its...
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When Was Silk Discovered?
When Was Silk Discovered? The history of silk is very ancient, and no one knows for sure when it was discovered. But historians do know that silk was first used in...
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Do Squirrels Remember Where They Hide All of Their Nuts?
Do Squirrels Remember Where They Hide All of Their Nuts? Squirrels don’t always remember where they have hidden all their nuts. Every autumn, the tree squirrel...
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What Is the Highest Mountain in the World?
Mount Everest is the world’s highest mountain. It lies in the Himalayas, on the Tibet-Nepal border, and rises to a height of about 29,028 feet 9 in (8,848 meters)...
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What Is the Use of Having Two Eyes?
The fact that we have binocular vision – that is, vision through two eyes – helps us to perceive depth. Our eyes measure about two and a half inches from...
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When Was Soda Pop Invented?
When Was Soda Pop Invented? In 1767, Joseph Priestley found the secret of giving water that soda fizz over 200 years ago. His invention of carbonated water (also known...
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Why Is the Flame of Candle Different Colors?
Why Is the Flame of Candle Different Colors? At first glance, a candle flame appears to be one color, a sort of yellow-orange. But if you study the flame closely, you...
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