[Taken from Call of Duty Wikia]
On one of the bars above the screens on GKNOVA6 a number comes up, the number is 47093, which leads to an asteroid found in Croatia back in 1999, which leads to the possibility that the Russians didn't stop their research after the fall of Soviet Russia and found an asteroid that involved a much more stronger version of Element 115. This could also be hinting at the continuation of the Zombie storyline past Black Ops.
[Taken from Nikola Tesla's Wikipedia page]
Later in life, Tesla made remarkable claims concerning a "teleforce" weapon. The press ca