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English

In 1950, calculations by the Polish mathematician Stanislaw Ulam and his collaborator Cornelius Everett, along with confirmations by Fermi, had shown that not only was Teller's earlier estimate of the quantity of tritium needed for the H-bomb a low one, but that even with higher amounts of tritium, the energy loss in the fusion process would be too great to enable the fusion reaction to propagate.

Chinese

波蘭數學家斯坦尼斯瓦夫·烏拉姆,及其合作者康尼留斯·厄瓦特、驗算者費米於1950年所作的計算不但指出泰勒之前所估計的氫彈所需氚的量太少,而且即使加大氚的用量,聚變過程中的能量流失也會大得使反應無法進行下去。