A bit off-topic but...
I've heard of some lakes having a contest to see who can guess when the ice will go out.
They make a contraption and put it on the ice and it has something that eventually falls through the ice and it records the day and time.
I'd like to make one for our lake but I can't figure out how. And I haven't been able to find any solutions online.
Anyone here familiar with one?
I'd say that my biggest problem is the timer. How to keep that running and how it would record the drop?