Dermot Mulroney. Biography by Rebecca Flint Marx. An actor whose versatility is matched by the unpredictability of many of his career choices, Dermot Mulroney has been appearing in films since the early 1990s. Born in Alexandria, Virginia, on October 31, 1963, Mulroney developed an early interest in acting.
The first rockets were invented in China sometime between the 9th and 13th centuries (A.D). These were black powder rockets that were essentially what we would call fireworks today, but were technically what are known as solid fuel rockets.
Atom Bomb Invention  Short answer: Leo Szilard invented the Atomic Bomb in 1933  and patented it in 1934.