| 21. | These solid fuel thermonuclear bombs were far easier to handle, requiring no cryogenic temperature materials or cooling system.
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| 22. | Place it under a thermonuclear bomb?
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| 23. | Rocky Flats made plutonium triggers for thermonuclear bombs until 1989, when it was shut down for numerous safety problems,
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| 24. | The Mark 39 design was a thermonuclear bomb ( see Teller-Ulam design ) and had a yield of 3.8 megatons.
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| 25. | :See atomic bomb, then fission bomb and thermonuclear bomb ( a hydrogen fusion bomb being the most common type ).
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| 26. | "One design, " it said, " would require new pit fabrication, " referring to the atomic triggers of thermonuclear bombs.
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| 27. | While the thermonuclear bomb designs tested by the UK during " Operation Grapple " were successful, they were never serially produced.
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| 28. | Later, in April 1957 she sailed to Christmas Island as part of " Operation Grapple ", Britain's first thermonuclear bomb tests.
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| 29. | Generally, a research program with the capacity to create a thermonuclear bomb has already mastered the ability to engineer boosted fission.
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| 30. | Many such devices at the lab contain information on weapons ranging from chemical explosives to thermonuclear bombs capable of vaporizing cities.
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