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.
There are other claims that the microscope and the telescope were invented by Roger Bacon in the 13th century, but this is not substantiated. Giovanni Faber coined the name microscope for Galileo Galilei 's compound microscope in 1625 (Galileo had called it the  occhiolino  or  little eye ).