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Author Topic:   Chalk takes millions of years to form
New Cat's Eye
Inactive Member


(1)
Message 7 of 57 (713269)
12-11-2013 12:28 PM
Reply to: Message 1 by Tangle
12-11-2013 11:10 AM


Chalk takes millions of years to form
If chalk is calcium carbonate, and calcium carbonate is hard water scale, then the fact that I can get hard water scale on my showerhead in the order of weeks seems to suggest that it does not take millions of years for chalk to form.

This message is a reply to:
 Message 1 by Tangle, posted 12-11-2013 11:10 AM Tangle has not replied

Replies to this message:
 Message 11 by Dr Adequate, posted 12-11-2013 12:40 PM New Cat's Eye has replied

  
New Cat's Eye
Inactive Member


(1)
Message 12 of 57 (713276)
12-11-2013 12:46 PM
Reply to: Message 11 by Dr Adequate
12-11-2013 12:40 PM


Ah, okay. That makes sense. You couldn't write on a chalkboard with a hunk of hard water scale from your showerhead like you can with a piece of chalk.
Given that coccoliths are individual plates of calcium carbonate:
You can envision how the plates would slide off each other and leave behind that nice sheet of chalk that makes it such a good writing utensil.
ABE:
So yeah, given this:
Holy shit that a whole lotta Coccolithophores (single celled algae)!
Yeah, that's gonna take a while...
Edited by Catholic Scientist, : No reason given.

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New Cat's Eye
Inactive Member


(1)
Message 18 of 57 (713287)
12-11-2013 4:58 PM
Reply to: Message 17 by Tangle
12-11-2013 4:40 PM



This message is a reply to:
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New Cat's Eye
Inactive Member


(1)
Message 40 of 57 (713375)
12-12-2013 5:20 PM
Reply to: Message 38 by AZPaul3
12-12-2013 4:31 PM


Re: It's been all bot up.
Of those 197 visitors fully 344 of them are mindless searchbots
Wait, that doesn't add up. I checked on my calculator. Typo?
How many of the visitors do you really think are searchbots?
(yeah, that's how insidious they are)
I hope you didn't use 344 out of 197 on purpose as a joke.

This message is a reply to:
 Message 38 by AZPaul3, posted 12-12-2013 4:31 PM AZPaul3 has replied

Replies to this message:
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