'The Blacklist' Season 2 Spoilers: Liz Finds The Fulcrum In Episode 10 [RECAP] By On 02/05/15 AT 10:20 PM. Red (James Spader, center) and Dembe (Hisham Tawfiq, left) tracked down Braxton (Ron Perlman, right) in episode 10 of The Blacklist Season 2.
Normally the Danish physicist Hans Christian Ãrsted Ã¸rsted is said to have discovered electromagnetism while doing a lecture in. 1820 he was a professor at The university Of â¦ copenha gen at the. time
Heinrich Hertz discovered photoelectric effect in 1887. Although electrons were not discovered yet, Hertz observed that electric currents were produced upon the incidence of ultraviolet light. By the beginning of the 20th century, physicists confirmed that: