Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > 5 gallon glass carboys-OLD ones
Reply
 
Thread Tools
Old 08-12-2008, 07:59 PM   #31
Bopper
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2006
Posts: 2,002
Liked 3 Times on 3 Posts
Likes Given: 129

Default

Quote:
Originally Posted by Choguy03 View Post
How much for you glass? i will give you $5 a piece
I've already offered them up to a friend of mine as he uses glass. He's going to take all of them.



Bopper is offline
 
Reply With Quote
Old 08-12-2008, 08:38 PM   #32
jds
Feedback Score: 0 reviews
 
jds's Avatar
Recipes 
 
Join Date: Oct 2007
Location: Littleton, CO
Posts: 1,947
Liked 22 Times on 18 Posts

Default

Quote:
Originally Posted by Revvy View Post
That was my first thought....but doesn't glass get more and more brittle with age?
Nope

Quote:
Originally Posted by 7Enigma View Post
No need to claim, just go look at an old church's stained glass windows. Notice how they are much thicker at the bottom than the top. This is due to the glass "flowing" down over many MANY years.
Actually, that's a myth. The thickness variation in historical glass was an artifact of the manufacturing process, not due to room-temperature flow. The RT flow rate of glass is sufficiently slow that you can essentially assume it doesn't flow at all.

Ask yourself this question: If 300 year-old glass is so much thicker at the bottom, why aren't Egyptian glass artifacts (3,000 years+) puddles yet?

Here are a few links for reference:

http://www.newscientist.com/article/...shattered.html
http://www.math.ucr.edu/home/baez/ph...ass/glass.html
http://dwb.unl.edu/Teacher/NSF/C01/C...indowpane.html
jds is offline
 
Reply With Quote
Old 08-13-2008, 12:15 AM   #33
7Enigma
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Location: Havertown PA
Posts: 373
Liked 2 Times on 2 Posts

Default

Quote:
Originally Posted by jds View Post
Nope



Actually, that's a myth. The thickness variation in historical glass was an artifact of the manufacturing process, not due to room-temperature flow. The RT flow rate of glass is sufficiently slow that you can essentially assume it doesn't flow at all.

Ask yourself this question: If 300 year-old glass is so much thicker at the bottom, why aren't Egyptian glass artifacts (3,000 years+) puddles yet?

Here are a few links for reference:

http://www.newscientist.com/article/...shattered.html
http://www.math.ucr.edu/home/baez/ph...ass/glass.html
http://dwb.unl.edu/Teacher/NSF/C01/C...indowpane.html
See about 10 posts back.
7Enigma is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
2.5 gallon glass carboys slim chillingsworth Equipment/Sanitation 14 02-03-2011 06:20 PM
For Sale - 6.5 & 6 Gallon Glass Carboys For Sale c.n.budz For Sale 9 06-03-2009 09:38 PM
5 gallon glass carboys Cold_Steel Equipment/Sanitation 6 04-17-2009 04:23 PM
3-gallon glass carboys available KiltLifter Equipment/Sanitation 1 02-01-2008 04:21 AM
New 5 and 6 gallon glass carboys brewer92 Equipment/Sanitation 11 11-29-2006 08:10 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS