|
bart
Oct 4, 2001, 2:09 PM
Post #1 of 5
(1056 views)
Shortcut
Registered: Aug 5, 2001
Posts: 278
|
What's worse for the rock itself: the sweat of your hands or the chalk? I mean, which one 'destroys' the rock the most?
|
|
|
|
|
pianomahnn
Oct 4, 2001, 2:15 PM
Post #2 of 5
(1056 views)
Shortcut
Registered: Feb 16, 2001
Posts: 3779
|
I believe it's the chalk or the sweat, it's the use itself. The constant friction and force placed on the rock is what damages it, makes it smooth, breaks it off, etc. I doubt chalk would be used if it actually hurt the rock, and sweat is merely water and salt, which doesn't do a whole lot. Hell, just everyday weather does worse than your sweat does.
|
|
|
|
|
marcsv
Oct 7, 2001, 8:42 PM
Post #3 of 5
(1056 views)
Shortcut
Registered: May 15, 2001
Posts: 358
|
although chalk may sometimes be unsightly (because it takes time for it to be removed, esp. when used in porous rocks), the chemical contents will not contribute to the erosion by weakening the chem. structure (if that is what you meant).
|
|
|
|
|
rrrADAM
Oct 7, 2001, 8:50 PM
Post #4 of 5
(1056 views)
Shortcut
Registered: Dec 19, 1999
Posts: 17535
|
Just a friendly FYI...
Erosion is caused by friction.
Corrosion is caused by caustic/chemical degradation.
rrrADAM
[ This Message was edited by: rrradam on 2001-10-07 20:51 ]
|
|
|
|
|
marcsv
Oct 8, 2001, 2:01 AM
Post #5 of 5
(1056 views)
Shortcut
Registered: May 15, 2001
Posts: 358
|
thanks for the info adam now i stand corrected
|
|
|
|
|
|
