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.
The Castle Bravo test, with a yield of 15 megatons, is the most powerful nuclear weapon tested by the United States, but not the most powerful ever. That distinction belongs to the device known as âbig Ivanâ detonated by the Soviet Union 13,000 ft (4,000 m) above a test field on Novaya Zemlya island on October 30 1961.