I have no idea if an aquifer floor tile on its own will act as a water drain. I know that it will dump water downwards. But if it was suspended in water by itself would it act as a drain? No idea.
Anyone else have any mysteries of dwarf fortress they want to share?
The science that I have performed thus far on aquifers has shown that the water in aquifers springs forth from the exposed edges of unmined aquifer tiles (the floor being the bottom 'edge' in this case). Thus, once you expose the actual 'floor' of the aquifer tile, it ceases to produce or absorb water, from either above or below.
Disclaimer: This is my personal experience, maybe I was 'doing it wrong' or had something anomalous going on in the forts where I have messed with aquifers, so if someone else has done any experimentation with this and has come up with differing results, let me know.
What I
don't know???
How to use burrows well... I have yet to even attempt to place a burrow in 2010, I am not even sure why I have avoided them.
How to use the military screen beyond activating a couple dwarves, forcing them to use some gear, then sending them to places or giving kill tasks with the 's'quad menu...[/i] Forget setting up any sort of schedule or training, I train my military by stationing them over some spike traps, or by locking them in a room with random creatures I have caught in cage traps and releasing the animals.
How to make hospitals work well and not be annoying... I have attempted to make hospitals a few times and they always end up either spawning grounds for creeping death of various sorts, or a place for dwarves with broken legs to chill for eternity while the doctors take turns playing with a bucket by the water source... In my forts, injured dwarves fend for themselves, the closest thing to a hospital I build is a bed dropper so I can dump all the wounded in some magma and leave it at that. Thankfully I do not have many casualties, as I tend to engineer for safety and try to take care of as many threats as possible without getting face to face to them with the military.