贝尔法斯特大学的科学家使用飞秒激光器发现，与预期相反，黄金在极端温度下变得更硬、更强，并且需要更多的能量才能达到其熔点。 Belfast University scientists, using femtosecond lasers, discovered gold becomes harder and stronger at extreme temperatures, contrary to expectations, and requires more energy to reach its melting point.

由贝尔法斯特一所大学领导的一组科学家通过一系列突破性的实验发现了有关黄金的秘密。 A team of scientists, led by a university in Belfast, have discovered secrets about gold through a series of ground-breaking experiments. 在实验中，使用高强度激光将金加热到极端温度，以便在原子水平上观察其效应。 In the experiments, high-intensity lasers were used to heat gold to extreme temperatures in order to observe the effects at the atomic level. 与预期相反，黄金在超过一定的热阈值后变得更硬、更强，而不是熔化。 Contrary to expectations, gold became harder and stronger past a certain heat threshold rather than melting. 这需要越来越多的能量来将黄金推至熔点。 This required increasingly more energy to push the gold to its melting point. 实验中使用的飞秒激光器在微秒时间尺度上运行。 The femtosecond lasers used in the experiments operate on microsecond timescales.