Re: Non-invasive Pressure Gauge?

[PanFan]

"wle" <[email protected]> wrote in news:1115520130.906372.169990
@o13g2000cwo.googlegroups.com:

> oh.
>
> i don;t mind a valve being there.
>
> what annoys me is that with presta valves, you usually let out several
> psi just measuring the pressure.

Heisenberg once said something about this in principle; exactly what, I am
uncertain.

 

[Tom Orr]

PanFan wrote:
> "wle" <[email protected]> wrote in news:1115520130.906372.169990
> @o13g2000cwo.googlegroups.com:
>
>> oh.
>>
>> i don;t mind a valve being there.
>>
>> what annoys me is that with presta valves, you usually let out
>> several psi just measuring the pressure.
>
> Heisenberg once said something about this in principle; exactly what,
> I am uncertain.

I think he said that when we measure or detect something we interact with it
and hence change it. But he was talking about sub-atomic particles or
Schroedinger's cat or something.

Tom.