Facts About All

Lava is red-hot liquid rock which comes from deep within the earth and breaks through the top of a volcano when it erupts. Millions of years...

Another name for astrology is "stargazing." Long ago it was the custom in some countries to call in an astrologer when a baby was ...

asbestos fibres The name "asbestos" comes from a Greek word that means "will not burn." There is nothing surprising a...

A magnifying glass is a convex lens, its makes objets look larger than they really are. The glass is thicker in the middle than it is at its...

Gutenberg Bible All the books that were printed when printing was in its babyhood -from the year 1455 to 1500- are called "cradle bo...