Obtaining Gemological Training. 1  1. Match your desired career path to a gemology school. 2  2. Enroll in a comprehensive diploma program. 3  3. Enroll in a gemologist certification program.  4. Take the courses specific to your 1  program. 5. Take a comprehensive final exam.  6. Obtain an apprenticeship.
Russia launches its most powerful submarine ever, capable of blasting nuclear warheads at targets 1,500 miles away. Russia has launched its most powerful submarine ever which is said to be capable of blasting nuclear warheads at targets 1,500 miles away on land. The Project 885 Yassen class fourth-generation Kazan nuclear submarine has been under construction since 2009 ahead of its launch on Friday Severodvinsk in northern Russia.
United States. While the United States Navy is runner up on this list of the 10 largest submarine fleets in the world, it is arguably the most capable. While most of the countries on this list have fleets that are largely diesel-electric, the entire fleet of the US Navy is nuclear powered. The US has a large number of Los Angeles class attack submarine.