“反重力”帆船漂浮在水面之下

小物体在漂浮的水层两侧浮动

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在这张数字化着色的图像中,两艘小帆船中的一艘漂浮在蓝色水层的底部。研究人员在容器中注入粘性液体,并以高频率剧烈振动。快速振动导致液体在容器内“悬浮”。稳定的气泡位于其下方。科学家们发现,在那里,小物体(质量高达7克,长度或直径为2.5厘米)可以在水层的底部漂浮,看起来是倒置的。他们推测,这种“反重力”效应是由快速振动在容器内形成的波动重力产生的。

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Andrea Gawrylewski is chief newsletter editor at 大众科学. She writes the daily Today in Science newsletter and oversees all other newsletters at the magazine. In addition, she manages all special collector's editions and in the past was the editor for 大众科学 Mind, 大众科学 Space & Physics and 大众科学 Health & Medicine. Gawrylewski got her start in journalism at the Scientist magazine, where she was a features writer and editor for "hot" research papers in the life sciences. She spent more than six years in educational publishing, editing books for higher education in biology, environmental science and nutrition. She holds a master's degree in earth science and a master's degree in journalism, both from Columbia University, home of the Pulitzer Prize.

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