Liquid Nitrogen

Droplets of Liquid Nitrogen on Table Top

桌面上的液氮液滴

Droplets of liquid nitrogen on a table top will zip around like tiny hovercraft, suspended on a cushion of nitrogen gas from the rapidly evaporating droplet. The droplets of liquid may also oscillate and rotate rapidly. If placed on a dusty surface, they will pick up dust and carry it with them.

桌面上的液氮滴会像微型滑翔机一样四处飞溅，悬浮在迅速蒸发的液氮滴所形成的氮气膜上。液氮滴也可能快速振荡和旋转。如果放在有灰尘的表面上，它们会拾取灰尘并将其携带走。

A good way to form large droplets with interesting motions is to dip a long strip of foam packing material into the liquid nitrogen. It will take up a considerable amount of the liquid, which can then be transferred to the table top in large droplets.

一种形成大液滴并产生有趣运动的好方法是将一卷泡沫包装材料浸入液氮中。它会吸收大量的液体，然后可以将其转移到桌面形成大液滴。

Droplets of Liquid Nitrogen on Table Top

桌面上的液氮液滴

Droplets on liquid nitrogen on a table top will zip around like tiny hovercraft, suspended on a cushion of nitrogen gas from the rapidly evaporating droplet. The droplets of liquid may also oscillate and rotate rapidly. If placed on a dusty surface, they will pick up dust and carry it with them.

桌面上的液氮滴会像微型滑翔机一样在空中滑行，悬浮在迅速蒸发的液滴所产生的氮气气垫上。液滴也可能快速振荡和旋转。如果放在有尘的表面上，它们会拾取灰尘并将其携带在一起。

Drops were often accompanied by a plume of condensed water vapor as they moved across the table top.

在移动过程中，往往伴随着一股凝结的水蒸气云。