University of Washington researchers say they used a laser to turn hot water into cool water. Five engineers from the university are the first in the 50-year history of the laser to refrigerate liquids under normal conditions with light beams._________________________________华盛顿大学的研究人员称,他们实现利用激光将热水转化成冷水. 在针对研究激光近五十年的历史中,五位来自该大学的工程师在正常条件下,首次实现通过激光光束冷却液体._________________________________
