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.
The first invented is the optical microscope. The name of this inventor is hard to pin down. The first compound microscope appeared in the Netherlands by the 1620s, maybe the inventor was Cornelis Drebbel. Galileo Galilei had a compound microscope in 1625 which he called the little eye.