Pump Up Inner Tube without Pump?

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Velominati

Well-Known Member
Location
West Country
It seems perfectly clear from the post that there is only one puncture proposed in the experiment/scenario. There is no pre-existing puncture in the scenario.

It's still completely bonkers.

BB
I was under the impression that the proponent of the hypothesis had indicated that the experiment should have two punctures, (1) the original puncture and (2) a deliberate second puncture which would be used to inflate the tube, thus revealing where the original puncture was, I feel that the experiment which is known as LCvCS 'Lung Capacity Versus Common Sense' is quite interesting but I had obviously not read the formula for the experiment correctly, I now understand that the original hypothesis was regarding a single puncture only, the hypothesis was not about repairing a puncture but inflating a tube with a puncture using lung capacity only. I will follow the experiment closely although I fear, that Dr Callum may not be successful in his endeavours.
 
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A close examination of the original hypothesis reveals only the single puncture. The opening statement refers only to the pumping phase but not any pre-existing hole-derived deflation state. Therefore the punctive state is only in the singular.

As the Nobel Prize for Aerobic Outrageousness is currently seeking nominations, I, too, will follow Dr Callum's analysis with keen eyes.
 

Profpointy

Legendary Member
Or you could carry an already pumped up spare tube over your shoulder. The extra weight of air would likely be far less than carrying a pimp.

And to the OP why would you want to make another hole rather than blow it up via the valve (ignoring for a moment that you wouldn't be able to puff 100psi in the first place without your lungs bursting)
 

screenman

Squire
If you cut right through the tube at the point of the original puncture, tie one end in a knot and blow up from the other end. This will enable you to get a fair bit of pressure in it, once pressurized tie that end in a knot.

Not sure about the next bit though so it may be a good idea to carry a spare and a pump.
 

Velominati

Well-Known Member
Location
West Country
A close examination of the original hypothesis reveals only the single puncture. The opening statement refers only to the pumping phase but not any pre-existing hole-derived deflation state. Therefore the punctive state is only in the singular.

As the Nobel Prize for Aerobic Outrageousness is currently seeking nominations, I, too, will follow Dr Callum's analysis with keen eyes.

This may be of some help:
23mm%2BTire%2BPressure%2BCalculation.png
 

Velominati

Well-Known Member
Location
West Country
Or you could carry an already pumped up spare tube over your shoulder. The extra weight of air would likely be far less than carrying a pimp.

And to the OP why would you want to make another hole rather than blow it up via the valve (ignoring for a moment that you wouldn't be able to puff 100psi in the first place without your lungs bursting)
I'm afraid you jumped the gun a bit there, we are still trying to determine if the experiment is possible.
 

Velominati

Well-Known Member
Location
West Country
If you cut right through the tube at the point of the original puncture, tie one end in a knot and blow up from the other end. This will enable you to get a fair bit of pressure in it, once pressurized tie that end in a knot.

Not sure about the next bit though so it may be a good idea to carry a spare and a pump.

OMG....I seriously believe that you are onto something here, why hasn't anyone else thought of this, that's the problem with the world today, we need people that think outside of the box...
 

Velominati

Well-Known Member
Location
West Country
Or you could carry an already pumped up spare tube over your shoulder. The extra weight of air would likely be far less than carrying a pimp.

And to the OP why would you want to make another hole rather than blow it up via the valve (ignoring for a moment that you wouldn't be able to puff 100psi in the first place without your lungs bursting)

Call me old fashioned but I have never carried a pimp on my bike. I have to ask, why would the OP want to carry a pimp? am I missing something.......

images?q=tbn:ANd9GcTTQWpWAsfD7x6kJ3F6OO0Dd9LJHvVsjRxWqaYAItoj28gvrq4s.jpg
 
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Or you could carry an already pumped up spare tube over your shoulder. The extra weight of air would likely be far less than carrying a pimp.

And to the OP why would you want to make another hole rather than blow it up via the valve (ignoring for a moment that you wouldn't be able to puff 100psi in the first place without your lungs bursting)

One would need to make a hole in order to try fixing it. See above: there is no existing puncture in the planned exegesis.
 

Velominati

Well-Known Member
Location
West Country
Well the experiment is certainly possible, I'm just concentrating on the theoretical side
I see, yes the experiment itself is possible but the outcome is unknown, I'm wondering if the little understood matter of friction would come into play, if you think about it, inflating a tyre with a hand pump can generate an incredible amount of heat, does the OP run the risk of 'Spontaneous Combustion'?
 
I see, yes the experiment itself is possible but the outcome is unknown, I'm wondering if the little understood matter of friction would come into play, if you think about it, inflating a tyre with a hand pump can generate an incredible amount of heat, does the OP run the risk of 'Spontaneous Combustion'?

Or friction-burn. An experiment best not attempted while naked.
 
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