Who Makes Federal Laws?

Federal laws are made by the Congress, which is composed of two branches: the Senate and the House...

What is the Internet?

The Internet is an enormous network of billions of computers, which allows people to communicate...

Who is Amedeo Avogadro?

Avogadro's work influenced the development of the metric system, and he established educational...

Who Was Aristarchus?

He is remembered for his model of the universe, which included a stationary Sun, planets orbiting...

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Why Is Physical Science Important? Who Was the Youngest US President? Who Was the US President During World War II? Who Was the President of the US During WW1?