What Causes an Echo?
What Causes an Echo? An echo occurs when sound bounces back from an object. When we speak or shout, sound waves travel through the air. We first hear the sound when the...
Read MoreWhat Causes an Echo? An echo occurs when sound bounces back from an object. When we speak or shout, sound waves travel through the air. We first hear the sound when the...
Read MoreWhat Is the Origin of the Word Ragamuffin? “Ragamuffin,” is one of those funny words usually used to describe a child who is dressed in rags and is usually...
Read MoreWhen Were Crossword Puzzles Invented? Crossword puzzles originally appeared as a parlor game in the 1800’s. They were simple word squares in which a group of...
Read MoreWhen Was Music First Written down? No one is certain when music was first written down. We do know, however, that the ancient Greeks wrote music with the letters of...
Read MoreWhy Is It the Last Letter in the Alphabet? “Z,” the 26th letter of the alphabet, comes from a sign the ancient Egyptians used in their picture writing that...
Read More