Sampo - its definitely the size of the bubbles ;) On 1 July 2017 at 12:37, Sampo Syreeni <de...@iki.fi> wrote:
> On 2017-06-30, Augustine Leudar wrote: > > its not the heat Dave - its the humidity (100 percent) that destroys >> speakers , that and the ants . Who funded that ? >> > > Also what mostly throws off your naïve sound speed calculations. > Temperature and the humidity which typically goes along with it jointly > behave somewhat counter-intuitively when you input them into the full wave > equation, dealing with multiple mixed gases at the same time. > > BTW, that brings to mind a totally unrelated thingy. It's a standard pop > physics question why does a boiling pot seem to go from higher to lower > sounding noise. Most plausible accounts of the phenomenon I've seen speak > high-falutin stuff about average sizes of bubbles and whatnot. > > Then a theoretical physics friend of mine once offered a (seemingly) quite > different, unexpected and in hindsight obviously correct answer: the > viscosity of water drops just as that of pretty much any fluid we consider > normal while its temperature rises. When you input the two numbers > representing that into the relevant equations, your first order > approximation just drops out. If you want to do something second order or > further, you'll have to start speaking about bubble sizes and whatnot, but > they too scale with temperature and viscosity, at first linearly around the > phase transition from whence they come. > > Goes to show, you're exactly right: a change of viewpoint from temperature > to humidity, from energy level to how water behaves in it, often explains > more and more simply than temperature by itself. 8) > -- > Sampo Syreeni, aka decoy - de...@iki.fi, http://decoy.iki.fi/front > +358-40-3255353, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -- Augustine Leudar Artistic Director Magik Door LTD Company Number : NI635217 Registered 63 Ballycoan rd, Belfast BT88LL -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20170701/323e7ab0/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
