>> You talk absolute rot Mr Fourwinds chalk washes away quite easily
I didn't say it doesn't wash away did I? I might do, but may I refer you to this:
http://www.brewingtechniques.c[...]ackissues/issue2.3/miller.html
"Carbonate and bicarbonate differ, however, in that bicarbonates are considerably more soluble than carbonates. <b>Calcium carbonate (chalk), for example, is only slightly soluble in neutral (pH 7) water </b>; calcium bicarbonate is considerably more soluble."
You see it doesn't desolve, but particles of it will get carried in the water. If it's on a rough rock surface then it gets stuck in the surface and can not get washed away, beacause sufficient water can't get behind it to lift it up and carry it away.
School chalk isn't actually pure chalk (or even actually chalk at all in some cases) and has bits added to it to make it disolve in water.
So, next time you say someone's talking rot make sure that they are, otherwise your amazing lack of knowledge might be noticed by a few people :-)
This topic is locked | Posted by FourWinds 31st March 2005ce 16:34 |
Graffiti at WKLB. (jimit, Mar 29, 2005, 11:18)- Re: Graffiti at WKLB. (PMM, Mar 29, 2005, 11:56)
- Re: Graffiti at WKLB. (doktoratomik, Mar 29, 2005, 12:47)
- Re: Graffiti at WKLB. (andygreyweather, Mar 29, 2005, 14:01)
- Re: Graffiti at WKLB. (mike croley, Mar 29, 2005, 17:34)
- Re: Graffiti at WKLB. (Pete G, Mar 29, 2005, 17:38)
- Re: Graffiti at WKLB. (mike croley, Apr 02, 2005, 11:12)
- Re: Graffiti at WKLB. (nigelswift, Apr 02, 2005, 12:06)
- Re: Graffiti at WKLB. (goffik, Apr 04, 2005, 18:40)
- Re: Graffiti at WKLB. (mike croley, Apr 04, 2005, 19:04)
- Re: Graffiti at WKLB. (Jane, Apr 04, 2005, 19:57)
- Re: Graffiti at WKLB. (Pete G, Apr 04, 2005, 20:28)
- Re: Graffiti at WKLB. (mike croley, Apr 04, 2005, 23:45)
- Re: Graffiti at WKLB. (Pete G, Apr 04, 2005, 23:50)
- Re: Graffiti at WKLB. (Jane, Apr 05, 2005, 09:11)
- Re: Graffiti at WKLB. (Kammer, Apr 05, 2005, 09:38)
- Re: Graffiti at WKLB. (Wiggy, Apr 05, 2005, 10:24)
- Re: Graffiti at WKLB. (Wiggy, Apr 05, 2005, 10:29)
- Re: Graffiti at WKLB. (goffik, Apr 05, 2005, 10:47)
- Re: Graffiti at WKLB. (wolfnighthunter, Apr 05, 2005, 19:48)
- Re: Graffiti at WKLB. (mike croley, Apr 05, 2005, 22:10)
- shorty! (Pete G, Apr 06, 2005, 01:44)
- Reclaiming unacceptable symbols (goffik, Apr 06, 2005, 07:56)
- Re: Reclaiming unacceptable symbols (morfe, Apr 06, 2005, 09:24)
- Re: Reclaiming unacceptable symbols (mike croley, Apr 06, 2005, 10:13)
- Re: Reclaiming unacceptable symbols (morfe, Apr 06, 2005, 11:15)
- Re: Reclaiming unacceptable symbols (cameltoe, Apr 06, 2005, 11:17)
- Re: Reclaiming unacceptable symbols (Squid Tempest, Apr 06, 2005, 12:14)
- Re: Reclaiming unacceptable symbols (goffik, Apr 06, 2005, 12:34)
- Re: Reclaiming unacceptable symbols (Wiggy, Apr 06, 2005, 12:38)
- Re: Reclaiming unacceptable symbols (anthonyqkiernan, Apr 06, 2005, 10:32)
- Re: You're Creepy, Mr Croley! (follow that cow, Apr 06, 2005, 14:05)
- Re: You're Creepy, Mr Croley! (mike croley, Apr 06, 2005, 14:17)
- Re: You're Creepy, Mr Croley! (rocknicker, Apr 06, 2005, 14:46)
- Re: You're Creepy, Mr Croley! (jimit, Apr 06, 2005, 18:10)
- I really AM showing my ignorance now, but... (goffik, Apr 07, 2005, 07:30)
- Re: I really AM showing my ignorance now, but... (FourWinds, Apr 07, 2005, 07:30)
- Re: I really AM showing my ignorance now, but... (Blonde, Apr 07, 2005, 17:31)
- Re: I really AM showing my ignorance now, but... (doktoratomik, Apr 07, 2005, 20:00)
- Re: Graffiti at WKLB. (Wiggy, Apr 07, 2005, 08:52)
- Re: Graffiti at WKLB. (Wiggy, Apr 07, 2005, 11:09)
- Re: Graffiti at WKLB. (Moth, Apr 07, 2005, 17:27)
- An out-of the-way ornament (Littlestone, Apr 07, 2005, 23:09)
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