What Is an Axilla?
The axilla (or armpit, underarm, or oxter) is the area on the human body directly under the joint where the arm connects to the shoulder. It also provides the under-arm...
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Where Did the Saying “jiminy Christmas” Come From?
Where Did the Saying “jiminy Christmas” Come From? “Jiminy Christmas” is an English-language example of what’s called a minced oath, a way to avoid referencing...
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Where Do Volcanoes Begin?
Where Do Volcanoes Begin? Volcanoes begin deep inside the earth. The earth’s crust is made up of giant pieces of rock called plates. Volcanoes are located where...
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How Does a Dam Produce Electricity?
How Does a Dam Produce Electricity? Much of the electricity we use is produced by power plants located in huge dams. Such plants, called hydroelectric plants, are run...
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How Does Yeast Make Dough Rise?
How Does Yeast Make Dough Rise? Yeast causes bread dough to rise by forming bubbles of gas in the dough. Yeast is a plant. The whole plant is made up of one cell which...
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When Was the Hot Dog on a Bun Invented?
When Was the Hot Dog on a Bun Invented? The first hot dogs on buns were served at the Chicago World’s Fair in 1893, the Colombian Exposition brought hordes of...
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How Does the Radio Antenna Work?
How Does the Radio Antenna Work? The radio antenna on a car or on your home set is like an ear, listening for radio waves sent out by broadcasting stations. The radio...
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How Do Chickens Chew Their Food?
Chickens, like all other birds, have an unusual way of chewing their food. The work of chewing is done by the gizzard, the part of the bird’s stomach where the...
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What Are Clouds Made Of?
Clouds are made up of very tiny drops of water or tiny crystals of ice that float in the air. Clouds form when warm air, containing moisture evaporated from the...
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Do Men Get Manicures and Pedicures?
Do Men Get Manicures and Pedicures? While manicures and pedicures may sound like something that only women would get, that’s certainly not the case. Men who want...
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