12.This polywater, made by ex posing very f glass capillanes to a saturated atmosphere of water vapor, was very viscous, dense and had a refractive index similar to that of glass.

• 通过将非常纤细的玻璃毛细管放在饱和的水蒸气中产生的这种“聚合水”的粘滞性和密度都很大，其折射系数与玻璃的相似。