Social Worker Certificate Program Information. Social worker certificate programs, which may be offered at the bachelor's or graduate level, cover human behavior, social environments and laws, communication techniques, social welfare policy and more.
Explanation of Color From a Prism. Although no one knows who invented the prism, Sir Isaac Newton was the one who discovered that the rainbows they produced were merely the components of white light that had been separated. Usually just called light or âvisible light,â white light comes from the sun.
Compound microscope was invented in 17 th century. As to who invented the compound microscope is a question of controversy. There are three persons who claim to have invented it; Hans Lippershey, Zacharias and Hans Jansen and Giovanni Faber.