Normal sparking from an electrical outlet. When that power is suddenly diverted to an appliance, there will be a quick draw on the available power, causing a brief spark. Once the electrons are flowing freely, there should be no reason for a spark to form.
Alfred Kastler (3 May 1902 â 7 January 1984) was a French physicist, and Nobel Prize laureate.
Hermann Ebbinghaus (1850 â 1909) was a German philosopher and psychologist who pioneered numerous experimental studies of memory. He is famous for his discovery of the forgetting curve. Ebbinghaus also introduced fundamental scientific techniques to the field of psychology.