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 is a lot of controversy regarding the inventor of compound microscope. Though, there are three contenders-Hans Lippershey, Zacharias Jansen-Hans Janssen and Giovanni Faber who coined the name 'Microscope' for Galileo Galilei's compound microscope in 1625. Galileo used to call it the 'Occhiolino' or 'Little eye'. However, Zacharias Jansen and Hans Janssen are widely regarded as the inventors of compound microscope. Zacharias Jansen was a Dutch spectacle-maker from Middelburg. He is also known as Zacharias Janssen and Sacharias Jansen. During 1590-1595, zaccharias janssen and his son hans, while experimenting with several lenses in a tube, discovered that nearby objects appeared greatly enlarged.