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2月11日,美国科学家宣布探测到来自遥远天体的引力波信号——他们观测到了两个恒星级黑洞13亿年前并合产生的引力波。100年前,爱因斯坦曾预测了引力波的存在。100年后,美国激光干涉引力波观测台(LIGO)实验组验证了爱因斯坦的伟大预言,令人兴奋。那么,什么是引力波呢?用爱因斯坦的话说,就是由于存在质量对时空的弯曲所造成的现象。可以设想一下,宇宙如同一张蹦床,丢入一根羽毛,什么也不会发生。但丢入一个球,蹦床就会在重量之下发生弯
On February 11, U.S. scientists announced the detection of gravitational signals from distant celestial bodies. They observed gravitational waves generated by the merger of 1.3 billion years ago between two star-level black holes. 100 years ago, Einstein had predicted the existence of gravitational waves. 100 years later, the experimental group of the United States Laser Interference Gravitational Wave Observatory (LIGO) verified the great prophecy of Einstein and it was very exciting. So, what is a gravitational wave? In the words of Einstein, it is the phenomenon of the bending of time and space caused by the existence of quality. Think of the universe as a trampoline, thrown into a feather, nothing will happen. But thrown into a ball, the trampoline will bend below the weight