Half a croissant, on a plate, with a sign in front of it saying '50c'
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Upside-Down Fountain

Like a fountain, but upside down.
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Water pours out of a spout in the ceiling, falling down until it hits a jet of air coming out of the floor, where it splatters outwards a few feet from the ground. A ring of more powerful air jets surrounds this, which bend the path of the droplets and send them back up to the ceiling. At the top, a corresponding ring of vacuum nozzles collects the droplets and feeds them back to the main reservoir.

Coming soon, in the same series:

- Sideways Fountain, which uses far heavier use of air jets to suggest that everything else is the sideways party;

- Gallium Fountain, which freezes solid on cloudy days;

- Slow-Motion fountain, which spews lightweight oil within a room filled with Sulphur Hexafluoride;

- Stopped Fountain, made of solid glass;

- Fast-Motion Fountain, which runs in a centrifuge;

- Fast-Forward Fountain, which skips straight to the final stage in the life-cycle of all fountains -- a crumbling lump of concrete with no water.

mitxela, Oct 19 2017

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       If you could find a way of making water magnetically attractive, whilst still being water, it could be repelled for a short distance away from an electromagnetic ring surrounding the water output hole, but then pulled back to it.
Ian Tindale, Oct 19 2017
  

       With enough air jets and processing power one might be able to organise a rotating fountain to combine all these ideas.
pocmloc, Oct 19 2017
  

       Well, I should be ‘inspired’ by this idea and steal it and post my own version – “Upside down upside down fountain”. Just like this one, except would you believe it is upside down - it squirts out of the ground and miraculously falls back to the ground!
Ian Tindale, Oct 19 2017
  

       Yes, but that is baked.   

       Well, maybe soggy is a better word.
normzone, Oct 19 2017
  

       Cast your bread upon the waters, and it will get soggy.
mitxela, Oct 19 2017
  

       - Suspended fountain, powerful sheets of jetted air keep a volume of water perpetually spinning and travelling through mid-air as though spilling down an invisible water-slide.   

       Just spurt the water downwards into a denser fluid, such as mercury.
Wrongfellow, Oct 22 2017
  

       Can air be laminar flowed like water or light? I imagine that it doesn't have the stickiness over short distances so a ring of jets would have some complex air patterns.
wjt, Oct 22 2017
  

       Marcel duchamp’s new fountain can now be a shower instead of a urinal
DDRopDeadly, Nov 23 2017
  

       There's a fountain in the Miro museum in Barcelona in which liquid falls across several metal plates, splashing and trickling from one to another. It's only after a second or two of watching it that you realise the liquid is mercury - very weird.
hippo, Nov 23 2017
  
      
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