X射线是有声音的

　　If scientists shoot tiny X-ray lasers at a stream of water, does it make a sound? Oh, yes it does. This year, researchers created what may be the loudest possible underwater sound, using just this setup. Contained within a vacuum chamber, pulsing beams from an X-ray laser collided with a razor-thin water jet, instantly splitting the jet in two and vaporizing the fluid on each side. Pressure waves rippled out from the point of contact and released a 270-decibel sound that would make NASA's loudest-ever rocket launch sound hushed by comparison. If the sound were any louder, it might have boiled the very liquid it was traveling through.

　　如果科学家向一股水流发射极细的X射线激光，它会发出声音吗?是的，它会。今年，研究人员利用这样一种装置制造出了可能是最响亮的水下声音。在真空容器内，X射线激光的脉冲光束与像刀片一样薄的水射流相撞，瞬间将射流一分为二，并使两侧的液体汽化。压力波从接触点开始扩散，发出270分贝的声音，比美国国家航空航天局史上最响亮的火箭发射声音还要大。如果声音再大一点，就有可能令它穿过的液体沸腾。