"Cool Met Stuff": When Frozen Crystals Lose Clarity

5 June 2026

Despite being made of the same water molecules, why is water transparent, while ice can either be clear or cloudy, and snow is white? In this new episode of "Cool Met Stuff", we introduce the science behind the unique appearance of these frozen crystals.

The video is now available on the "MyObservatory" mobile application and the Observatory's website for your viewing (programme broadcast in Cantonese).

Welcome to view "Cool Met Stuff" from this link (broadcast in Cantonese).
Broadcast schedule of various TV channels can be found here.