Doctor Who (2013 specials) Doctor Who (2013 specials) The 2013 specials of the British science fiction television programme "Doctor Who" are two additional episodes following the programme's seventh series. In addition to the traditional Christmas episode, which has been a feature of the revived series since 2005, there was also a special celebrating the 50th anniversary of the programme. Both episodes starred Matt Smith as the Eleventh Doctor and Jenna Coleman as Clara Oswald. The 50th anniversary special, "The Day of the Doctor" saw the guest returns of former series leads David Tennant and Billie Piper. The 2013 Christmas special, "The Time of the
One World or None One World or None One World or None (1946) is a instructional documentary short film produced by the National Committee on Atomic Information in conjunction with Philip Ragan Productions. Made just months after the Atomic bombings of Hiroshima and Nagasaki, it is considered the first postwar "atomic scare" film. "One World or None" established that throughout history, scientists from many nations have made great advances and discoveries and have shared that knowledge globally. The periodic table was developed by Russian chemist Dmitri Mendeleev, British scientist J. J. Thomson and his team discovered the principle of the electron, and German theorist