To begin with, when talking about light or sound, someone might have used the phrase “sound-waves” or “light-waves,” but do you actually know what that means? 

You might have used a telescope at a park or somewhere high-up to see distant figures and places, but do you know how telescopes actually work? 

Have you ever wondered how humans touched the moon? It took a tremendous amount of work, with 400,000 people at NASA collaborating together to get astronauts into space.

Contradicting popular belief, Thomas Edison was not the inventor of the lightbulb, at least not the originator…

The idea of an atom was first proposed by John Dalton in 1803, who realized that all matter was made up of smaller particles or units. He believed that atoms were small, dense “billiard balls.”