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.
Augustine Fresnel. Then in 1822 a French Physicist named Augustine Fresnel invented a lens that would make his name commonplace along the coasts of Europe and North America. A fresnel lens looks like a giant glass beehive, with a light at the center.