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[USEC_OFFICER]

So, I'm wondering whether anybody has ever tried to use water to push items up several z-levels? I assume that if it works, the water has to be pressurized, right? This would make an idea I have for my current fort much more feasible.

EDIT: Looks like I'll have to try this for !!SCIENCE!!

[NecroRebel]

Water does not normally push objects up z-levels. Nothing floats, you see. So, you can (sometimes, and unreliably) push objects horizontally or downwards with water flows, raising them upwards has to be done with dwarf-power or (even less reliably) bridge-apults.

[Sphalerite]

I am fairly certain that moving water will never under any circumstances move objects upwards.  However, a retracting bridge driven by a repeater will throw objects up to 3 Z-levels upwards, so you might be able to do something with bridges.

[USEC_OFFICER]

Water does not normally push objects up z-levels. Nothing floats, you see. So, you can (sometimes, and unreliably) push objects horizontally or downwards with water flows, raising them upwards has to be done with dwarf-power or (even less reliably) bridge-apults.

I was afraid of that.

[xellas84]

Water cannot ever push objects up, because water never flows up in DF.

'Flow' only occurs sideways and down.  Pressure moves water by 'teleporting' through full 7/7 stacks.  A 7/7 stack has no innate flow, even when water is teleporting through it.

[USEC_OFFICER]

Drat. Wish I knew that before I almost flooded my fortress.

[Urist McMick]

If you don't want the chamber to go to waste you could make it a Hydrostatic Environment Lifting Platform!, A HELP! Named so for the screams of the dwarfs within.

[BodyGripper]

This gave me an idea (which I'm pretty sure is still on-topic):
1.  Creature (who can swim) gets sealed into shaft.
2.  Shaft fills with water.
3.  Creature swims up Z-levels.
4.  Floodgate on side of shaft opens, creature and water exit through it.
5.  All the water gets drained somewhere.

Has something like this been done?  If not, is it doable?

[Urist McMick]

That's more or less the point behind a HELP! Dwarf gets sealed in, lever 1 pulled. Water flows, Dwarf gets lifted up. lever 2 pulled, drawbridges close and floodgates open, water is recycled through grates. This makes your fortress totally impenitrable, as the only way in is a lever operated tunnel.

[USEC_OFFICER]

If you don't want the chamber to go to waste you could make it a Hydrostatic Environment Lifting Platform!, A HELP! Named so for the screams of the dwarfs within.

Sadly, the chamber was for testing purposes only, and as such, can only be used for testing part 2 of my experiment. (Which is the ciritial part)

[xellas84]

http://df.magmawiki.com/index.php/DF2010:Water

Magmawiki is your friend.

[USEC_OFFICER]

Part 2 has failed. Falling objects do no seem to hurt or wound. Shame.

[xellas84]

Part 2 has failed. Falling objects do no seem to hurt or wound. Shame.

Unless it's a cavein, most objects that fall deconstruct or are destroyed when they hit a solid surface.

[USEC_OFFICER]

Part 2 has failed. Falling objects do no seem to hurt or wound. Shame.

Unless it's a cavein, most objects that fall deconstruct or are destroyed when they hit a solid surface.

Yes, but they don't hurt any creatures in the same tile that they land on. I can't have falling rocks crush the incoming goblin hoards, unless it is a cave in.

[Urist McMick]

Or a stonefall trap