Goodness me !!
Now there's an interesting list ! Very comprehensive !
Someone's certainly been working hard on it.
Very cool … a handy reference to have when pondering possibilities or speculating about some aspect of nature. Sometimes its difficult to find out whether or not science views some issue as a problem or not, and also sometimes its hard to find out whether or not anyone else is pondering the same problems. This list helps tremendously in that regard.
I notice there are a few topics which some folk would argue aren't 'unsolved' any more (eg: the Pioneer Anomaly, Dark Matter's role in galaxy rotation etc).
Methinks choosing a criteria for what is 'unsolved' must be a very tricky topic in itself. I'm surprised there's not more debate on the 'Discussion' page!
Thanks Steven … will ponder some of the topics in more detail shortly … I reckon Alex would love to tackle solving some of them.
Whaddya reckon, Alex ?
Cheers