How to repair the underside of a ship’s hull, still in the river, in -50˚C Yakutsk!

https://eugene.kaspersky.com/2022/04/26/how-to-repair-the-underside-of-a-ships-hull-still-in-the-river-in-50%CB%9Ac-yakutsk/
Narrative

It gets so cold in Siberia, that you can repair a ship’s hull by letting it freeze in a river, then cutting out the ice around it.