So this is brilliant, because it's this wonderful interaction of all sorts of things. It's a physical process. The reason the bubbles come out as the… - Helen Czerski

We know how that graph goes... Wind speed... along the x-axis, some measure of gas flux... along the y-axis, and we knew at the time that the graph only went so far to the right... [W]e were putting dots... on the graph that had not been there before... So there's that added thing of being there with the right equipment at the right time to... measure something that has not been measured directly before...

If you pour milk into your tea and give it a quick stir... liquids mix in beautiful swirling patterns... not... merging instantaneously. ...If you look down on Earth from space, you... often see... similar swirls in the clouds... where warm... and cold air waltz around... instead of mixing directly. In Britain... they form at the boundary between cold polar air... and warm tropical air... We know these swirls as depressions or s...

So penguins use bubbles, and I think that's brilliant!