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 electromagnetic lens was developed in 1926 by Hans Busch. According to Dennis Gabor, the physicist LeÃ³ SzilÃ¡rd tried in 1928 to convince Busch to build an electron microscope, for which he had filed a patent.