41.   The laser would be used partly to simulate the extreme temperatures and pressures of a nuclear blast.

42.   The great shocker was that the doors would open and it was like a nuclear blast because it was complete daylight.

43.   The second compares the appearance of seismograph readings of an earthquake, a mining blast, a nuclear blast and the mystery event.

44.   These rumbles are carefully studied to try to find underground nuclear blasts hidden among the natural din of earthquakes small and large that occur regularly.

45.   Those explosives start the nuclear blast by collapsing the pit and creating a critical mass of plutonium and a nuclear chain reaction.

46.   Typically, the shock waves from nuclear blasts begin with a very distinct wave or spike as earth and rock are violently compressed.

47.   We carried our chairs over our heads and walked out to those cliffs, the only shelter close enough to shield us from the effects of a nuclear blast.

48.   While an explosion would still occur, it would be much smaller than a full-scale nuclear blast.

49.   With computerized go-aheads, hundreds of underground nuclear blasts rocked the test site in Nevada, a desolate expanse of desert bigger than Rhode Island.

50.   With the sanctions slapped on Pakistan after the recent nuclear blasts, the flow of international capital into the country has slowed markedly.