[yor_on]

Ah Rosy Rose, it's you then, is it?

Now Missus Rose, what i first noticed enjoying your picture was that 'burning determination' shown in your eyes, as you created that majestic pillar of water.

If 'looks could kill' then that teacup would have been decimated eons before.
And of course as Mr Chem ever so politely points out, the more than sufficient lung capacity shown here.

And now I will hide under my table again.

[wolfekeeper]

According to my calculations

How do you calculate something this?

The maximum height is determined by the 'head'. You just need to estimate the height of the jet and then use that to calculate the head in terms of meters of water, the amount of head the lady supplies determines the maximum height it will spurt.

So in the picture the jet has gone less than a 0.3 m upwards; so you need a head pressure of 0.3m. One atmosphere is about 10m head (14.7 psi) so it's 0.3/10*14.7 =~ 0.5 psi.

There's also some losses due to viscosity of the liquids flow in the nozzle, I could calculate it, but the calculation is a bit messy, and that shouldn't be too bad at these low speeds.

[wolfekeeper]

Yeah, I just tried it in my shower... there's now a wet patch on the ceiling and my fringe is a bit damp. [] The biggest problem was sealing the teapot with my mouth. The other problem I had was the angle of the spout of the teapot I was using was a bit flat to get a really good height.

[Madidus_Scientia]

Can you resistance-train your diaphram muscles?

[Bored chemist]

The teapot is a red herring (possibly belonging to Mr Russel, but that's another story).
If you can spit a jet of water like that then there's not a lot of difference between doing so and blowing it out of the teapot.

[wolfekeeper]

Can you resistance-train your diaphram muscles?

You probably can, but you've got to be careful with that kind of thing, lungs don't take high pressures very well- they can actually rupture, even some musical instrument players have been known to have problems with that kind of thing, although they don't usually die, they can get leaks of air into their chest; and blowing up water bottles is actually pretty dangerous.

FWIW I used my lungs, not just my mouth to blow, I don't think you'd get a good strong jet with just your mouth.

[yor_on]

*Bravely putting head above table*

Reading "lungs don't take high pressures very well"

That's probably why it's a lovely lady doing it Mr Wolfekeeper.
As we all can see, their lungs are so much more, than us mere mens.
We just can't reach those aesthetic heights of delightful proportions.

*Most astutely hiding under that same table, just before the pie lands*

[Chemistry4me]

(Ah, yes) *a table is always good to hide under* []