Krakatoa
Clapping your hands is pretty loud. When a whole audience applauds it can be deafening. Bu...
Have you ever heard of a Stradivarius? It's not a disease or a dinosaur species. It's a kind of violin. In Italy during the 1700s, Antonio Stradivari came to be known for making the best violins. Any violin he made is called a Stradivarius. They are prized by musicians. One Stradivarius even sold for over three million dollars! Stradivari used special materials and methods, some of which are unknown today. Three kinds of wood were used in the instrument. Each wood was best for different parts of the violin because each made a different sound when the instrument was played. Stradivari also treated the wood with natural chemicals and fastened together the pieces of wood with handmade glues. His painstaking efforts resulted in the greatest sound quality. To try to solve the mystery of this sound, scientists have x-rayed and analyzed the violins. But how Stradivari got that great sound is still a mystery. It always will be.
Clapping your hands is pretty loud. When a whole audience applauds it can be deafening. Bu...
Washington, D.C. is the capital of the United States. It is located between the states of ...
The Boston Massacre was one of several events that helped to start the American Revolution...