Mark 21 nuclear bomb
The Mark 21 nuclear bomb was a United States nuclear gravity bomb first produced in 1955. It was based on the TX-21 "Shrimp" prototype that had been detonated during the Castle Bravo test in March 1954. While most of the Operation Castle tests were intended to evaluate weapons intended for immediate stockpile, or which were already available for use as part of the Emergency Capability Program, Castle Bravo was intended to test a design which would drastically reduce the size and costs of the first generation of air-droppable atomic weapons (the Mk 14, Mk 17 & Mk 24). At long, in diameter, and weighing , the Mk-21 was half the length and one-third the weight of the Mk-17/24 weapons it replaced. Its minimum yield was specified at four megatons.
Dwayne Bravo
On the West Indies tour of Australia in 2005, Bravo was controversially not picked for the first Test at Brisbane in which the West Indies were beaten convincingly. He was recalled for the second Test in Hobart and made a superb 113, after coming in at a very difficult stage for the West Indies. His innings lifted the West Indies and helped them regain some pride, forcing the Australians to bat for a second time in the match. In the third and final match of the series at Adelaide, he bowled a superb spell in the Australians first innings taking 6 for 84.