| 21. | The motivation behind the composite core was to make better use of the available fissionable material.
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| 22. | Cut to Libya, where Gadhafi has purchased nuclear know-how and fissionable material from corrupt Pakistani scientists.
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| 23. | In traffic, though, those words become fissionable material.
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| 24. | But they agreed that improved safeguards of fissionable material and nuclear power stations were urgently needed.
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| 25. | In some cases, she added, there were no computers available for keeping track of fissionable material.
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| 26. | As a result, fissile materials ( such as uranium-235 ) are a subset of fissionable materials.
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| 27. | The resulting explosion does not release fissionable material.
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| 28. | I would rather smear fissionable materials on my face than figure out what's going on with pantyhose.
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| 29. | The large nuclear infrastructure was destroyed and the fissionable material was removed from Iraq by the IAEA.
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| 30. | In the interior of a critical mass sphere, neutrons are being spontaneously produced by the fissionable material.
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