Uploaded October 2013 | Updated September 2026, 9 hours ago

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It was theorized that the ripples on icicles are the result of surface tension effects in the thin water film that flows over the ice as it forms. A new investigation revealed that the actual culprit is salt.

Source: Univ. of Toronto

Read more: laboratoryequipment.com/videos/2013/10/salt-creates-rippled-icicles