What Is a Bitcoin and How Does It Work?
What Is a Bitcoin and How Does It Work? Bitcoin is a cryptocurrency (sometimes called virtual currency or digital currency). It’s a new type of money that’s...
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What Are Ingots?
What Are Ingots? Ingots are blocks of cast metal from which other things are made. You have probably heard of cast iron. Casting is the process by which molten metal is...
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Who Was the European Inventor of Printing?
Who Was the European Inventor of Printing? Yet, despite this evidence, the invention of printing with movable type is regarded as a European discovery of the 15th...
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How Is Cheese Made?
How Is Cheese Made? All cheeses are made in basically the same way: by curdling milk so that it separates into curds and whey. Curds are solid white lumps, and whey is...
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What Keeps an Igloo Warm Inside?
What Keeps an Igloo Warm Inside? If you were an Eskimo living in the far north of Canada, you might build your winter house from blocks of snow and sleep on a bed of...
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