Tag Archives: dick rogers

Who invented the umbrella?

When it rains, we may put up an umbrella to help keep the water off.  But actually the umbrella was not invented as protection against rain. The first umbrellas were used as shades against the hot sun.  in fact, the umbrella gets its name from an old Latin word meaning “little shadow.” No one knows …

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Why do we feel pain when we are hurt?

Heat of the candle flame sends pain messages to the brain through long threads of nerve cells. Consider yourself  lucky that you can feel pain.  Pain is your protector.  It warns of possible danger to the body.  If you did not feel pain from touching something hot, you might not jerk your hand away in …

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How are bricks made?

The ordinary bricks that a bricklayer uses to build a brick house are usually made from clay that is baked in an over. To make bricks, he brick makers grind the clay and mix it with water.  Some sand is added, too. A brick making machine pushes the soft clay through a hole to form …

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How are natural diamonds formed?

Diamonds are formed in dying volcanoes.  As the hot lava cools, great pressure and heat act on the carbon found in the lava and change the carbon into diamonds. You may know that a diamond is simply a crystal of common carbon, of which coal is largely formed. Diamonds were formed millions of years ago in …

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How are glass bottles made?

Glass bottles, such as pop bottles and mil bottles, are made by machines which blow and mold the glass at the same time into the right shapes. In the bottle-making factory, a gob of red-hot molten glass with just enough material to make the finished bottle is dropped into a metal mold. A blast of …

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What does ‘dew point’ mean?

The dew point is the temperature at which moisture in the air begins to condense. Perhaps the air doesn’t seem damp at all.  It does, however, have many tiny, invisible bits of water moving about in it.  We call these tiny specks of moisture “water vapor.” Cold air cannot hold as much moisture at warm …

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Why is the season of autumn called fall?

Autumn is the season of the year that comes between summer and winter.  For those of us who live where there is a marked changed of season, we know it’s autumn when the leaves change color and the crisp air pinches our cheeks. Americans often call this season “fall” because it is the time of …

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What were centaurs?

Ancient Greek legends or tales tell of centaurs (pronounced SET tors), which were beastlike creatures half-man and half-horse. They were said to live in the mountains of Thessaly and Arcadia in Greece. Centaurs were often wild, lawless creatures.  They liked to fight and destroy things using rough branches of trees as weapons. The most famous centaur …

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How did the boxing ring get its name?

Boxing contests take place in a “ring” which is actually a square platform enclosed by ropes supported by posts at each corner.  The modern boxing “ring” probably got its name from the circular arena that Roman boxers once fought in. These early boxers wrapped each fist in a leather thong called a “cestus,” which was …

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What causes colored snow?

Did you know that snow is not always white?  Red, blue, yellow and even black snow is sometimes seen in many parts of the world. The snow is not really these colors!  If you live in a dusty place, bits of yellow dust in the air may stick to the falling snowflakes and make them …

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