Source: Curium does not exist in nature. It is a synthetic element and it is produced in nuclear reactors by bombarding plutonium with neutrons. Isotopes: Curium has 15 isotopes whose half-lives are known, with mass numbers 238 to 252. Curium has no naturally occurring isotopes.
2017 Rolls-Royce Ghost Series II. Everything in life is relative, and perhaps no car illustrates this point as effectively as the Rolls-Royce Ghost. While it's technically the entry-level Rolls-Royce model, the Ghost's $250,000 base price puts it in the stratosphere of the overall automotive market.
The 2014 Rolls-Royce Ghost offers up a limited-edition performance package called V-Specification. For an extra $20,000 â a pittance for a Rolls-Royce owner â you get an additional 30 horsepower from the V12 engine, plus special wheels and embroidery. The V-Specification is available from January to July of 2014.