“吸血鬼树”何处吸取养分？盘点2019年最怪异10项科学研究_BEC初级作文

“吸血鬼树”何处吸取养分？盘点2019年最怪异10项科学研究

在新西兰的森林深处，一个不起眼的树桩紧紧吸附着旁边针叶树的根部，吸取它们来之不易的水分和养分。科学家在新西兰的西奥克兰徒步时偶然发现了这个植物“吸血鬼”，它周围是数百棵贝壳杉——一种能够长到165英尺（约合50米）高的针叶树。白天，这些参天大树把水从树根输送到树叶。到了晚上，那个矮树桩会把临近树木根部里剩余的水分和养分抽取到自己的根部。作为研究报告作者之一的新西兰奥克兰理工大学副教授塞巴斯蒂安·洛伊青格在一份声明中说：“或许我们不应该把树当作个体，而应该把森林当作一个超级有机体。”

conifer [ˈkɒnɪfə(r); ˈkəʊnɪfə(r)]：n.针叶树；松柏科植物

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.