Maybe RC did some deletions, but that wouldn't make sense either, since having the duplicates visible helps define what's going to work and what's not.
@kenorb You can't edit a closed question into something else simply to misappropriate those votes for a question they were not cast for. You know better and crap like that will get an account suspended.
The other dupe pair that I can recall isn't there now. or not in the top page anyway. Both were something about rifle barrels. Twists or repair, or replace. Something like that. But I don't see the second one so it might have been deleted by the OP.
I've got a pert answer for what's the difference between the two atomic bombs dropped in WWII. :)
