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Old 07-21-2009, 12:20 PM
Tom Tildrum Tom Tildrum is offline
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World's largest pane of glass?

Is this the sort of thing for which world records are kept? What/where is the largest single pane of glass?

No reason for asking; just curious.
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Old 07-21-2009, 12:31 PM
Magiver Magiver is offline
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depends how you define pane. The older telescopes would easily qualify as the largest piece of glass by volume. If you mean the flat surface area measurement that would be a different question.
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Old 07-21-2009, 12:41 PM
astro astro is offline
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Sydney - claimed as largest
http://www.jaunted.com/story/2009/7/...s+In+The+World

New York
http://content.techrepublic.com.com/...ml?tag=nl.e101
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Old 03-17-2017, 11:50 AM
RealityChuck RealityChuck is offline
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Originally Posted by astro View Post
I think these glass store front panes are among the largest in the world

The Sydney AU store claims to have the largest
Watch out. That link brings up a fake virus warning. You'll need to shut down your browser via task manager to quit it.

Last edited by samclem; 03-17-2017 at 12:18 PM. Reason: removed link
  #5  
Old 03-17-2017, 12:00 PM
Musicat Musicat is offline
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Originally Posted by RealityChuck View Post
Watch out. That link brings up a fake virus warning. You'll need to shut down your browser via task manager to quit it.
Fake, probably. But I was able to close the tab in Chrome to exit it with no problems.
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Old 07-21-2009, 01:17 PM
garygnu garygnu is offline
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Those don't look like single panes of glass. My guess is an aquarium. The viewing window at Okinawa, discussed in this thread, is claimed to be the second largest, but no clues about the largest yet. The Wikipedia entry on the Georgia Aquarium says, without citation, that its large viewing window is second largest, but again makes no mention of the one that beats it.
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Old 07-21-2009, 01:32 PM
Fear Itself Fear Itself is offline
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Quote:
Originally Posted by garygnu View Post
Those don't look like single panes of glass. My guess is an aquarium. The viewing window at Okinawa, discussed in this thread, is claimed to be the second largest, but no clues about the largest yet. The Wikipedia entry on the Georgia Aquarium says, without citation, that its large viewing window is second largest, but again makes no mention of the one that beats it.
Are those made of glass? I would be surprised if they are, I would expect them to be made of polycarbonate or some other polymer plastic
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Old 07-21-2009, 04:34 PM
garygnu garygnu is offline
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Are those made of glass? I would be surprised if they are, I would expect them to be made of polycarbonate or some other polymer plastic
It is described as acrylic glass, so it's not "glass" glass.

IIRC, the glass used in Disneyland's Haunted Mansion (actual glass this time) were the largest at the time, but they've probably been superseded by now.

Also, The New Republic was stained by Glass. The Kansas City Royals are a very plain baseball team owned by Glass. And finally, the US Supreme Court found in 1985 that Louisiana was not causing undue pain in Glass.
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Old 07-21-2009, 01:44 PM
Telemark Telemark is offline
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Those don't look like single panes of glass.
Are you sure? They look like single panes (as stated in the article) that are braced so they don't flex.
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Old 07-21-2009, 04:19 PM
BrandonR BrandonR is offline
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Are you sure? They look like single panes (as stated in the article) that are braced so they don't flex.
They appear to be several different pieces of glass rather than one continuous piece: http://www.bandlem.com/Xmas/2006/AppleStoreNY.jpg
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Old 07-21-2009, 01:52 PM
KneadToKnow KneadToKnow is offline
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"Music in Twelve Parts" should qualify as one of the largest pains of Glass.
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Old 07-21-2009, 02:02 PM
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"Music in Twelve Parts" should qualify as one of the largest pains of Glass.
Of course in the middle of the US there are Great Plains of Grass.
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Old 07-21-2009, 03:11 PM
Tom Tildrum Tom Tildrum is offline
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Of course in the middle of the US there are Great Plains of Grass.
Stay focused, people.

Some good answers so far.
  #14  
Old 07-21-2009, 03:44 PM
CC CC is offline
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What was a moderately interesting thread has now become a large pain in the ass.
  #15  
Old 07-21-2009, 04:40 PM
Whack-a-Mole Whack-a-Mole is offline
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Probably not glass but the world's largest viewing panel is at the Dubai Aquarium & Underwater Zoo. Pretty freaking big.
  #16  
Old 07-21-2009, 04:43 PM
Oukile Oukile is offline
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The main tank at Osaka Aquarium looks pretty big.


Quote:
The tanks used in the aquarium are made of 314 tonnes of acrylic glass - roughly 1.5 times the world's annual production. The largest single pane measures six meters by five meters by thirty centimeters and weighs roughly 10 tons.
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Old 07-21-2009, 04:46 PM
AncientHumanoid AncientHumanoid is offline
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never mind, the cite I found was bogus

Last edited by AncientHumanoid; 07-21-2009 at 04:50 PM. Reason: not really an answer, was it?
  #18  
Old 07-21-2009, 04:47 PM
Whack-a-Mole Whack-a-Mole is offline
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This guy claims the New Jersey Aquarium has the largest single pane of glass. I have found no backup for this assertion though so take with a grain of salt.

Quote:
The round 760,000 gallon Open Ocean Tank is about 17 feet deep except in a section that is called the Abyss. Here the bottom has been deepened (24 ft) and the steel wall has been replaced by the world's largest single pane of glass

SOURCE: http://divemar.com/divermag/archives.../aquarium.html
  #19  
Old 07-21-2009, 04:53 PM
The Hamster King The Hamster King is offline
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There was an article in the L.A. Times a few weeks ago about the 50th anniversary of the Stahl House. It mentioned that the house was designed to use the largest size of commercially available plate glass at the time it was built. Presumably glass tech has improved some since 1959.

Last edited by The Hamster King; 07-21-2009 at 04:54 PM.
  #20  
Old 07-21-2009, 04:52 PM
Whack-a-Mole Whack-a-Mole is offline
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I have seen a couple of cites stating that this ranch has the largest single pane of glass in North America. It measures 33'x10'.

Lima Peaks Ranch

Last edited by Whack-a-Mole; 07-21-2009 at 04:52 PM.
  #21  
Old 07-23-2009, 01:44 AM
t-bonham@scc.net t-bonham@scc.net is offline
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Quote:
Originally Posted by Whack-a-Mole View Post
I have seen a couple of cites stating that this ranch has the largest single pane of glass in North America. It measures 33'x10'.
I think we're back to optical telescopes as the largest, then.

The largest is 10.4 meters diameter, and there are several of 10 meters. That's quite a bit larger face area than these panes of glass. Even if we don't consider that they are thicker, and much more complicated than a simple sheet of window glass, they are still larger.
  #22  
Old 07-23-2009, 01:57 AM
Whack-a-Mole Whack-a-Mole is offline
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Originally Posted by t-bonham@scc.net View Post
I think we're back to optical telescopes as the largest, then.

The largest is 10.4 meters diameter, and there are several of 10 meters. That's quite a bit larger face area than these panes of glass. Even if we don't consider that they are thicker, and much more complicated than a simple sheet of window glass, they are still larger.
Yeah.

Guess the OP has to define a "pane" of glass. Just the biggest hunk-'o-glass there is or an actual pane? And for biggest are we talking surface area or weight?
  #23  
Old 07-21-2009, 08:45 PM
gotpasswords gotpasswords is offline
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Quote:
Originally Posted by The Hamster King
Presumably glass tech has improved some since 1959.
It's improved a lot just in the past few years.

In 2003, 2.5 x 6 meters was just about the biggest piece of laminated glass on the planet.

Five years later, in 2008, the laminated glass at Apple's Sydney store is two and a half times taller.

I'm not sure how they're measuring - probably in terms of single, non-laminated pieces - but Schott claims several "largest" records. They say they made the largest piece of glass in the world - an 8-meter diameter telescope mirror.

And, you probably won't catch me on the world's largest self-supporting glass staircase. (As of 2006, at least) The ones at the Apple stores give me the willies as it is, but this one is much more open - no risers, no bolts and much less hardware to provide visual assurance that the thing isn't about to collapse.
  #24  
Old 07-23-2009, 02:00 AM
Whack-a-Mole Whack-a-Mole is offline
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Originally Posted by gotpasswords View Post
And, you probably won't catch me on the world's largest self-supporting glass staircase. (As of 2006, at least) The ones at the Apple stores give me the willies as it is, but this one is much more open - no risers, no bolts and much less hardware to provide visual assurance that the thing isn't about to collapse.
I live in Chicago and the Apple staircase gives me the willies too. That seemingly unsupported one is downright disconcerting...cool but disconcerting.

We must be weird though. I point out to my friends when we go to that store that the staircase is glass and they literally seem to not process that at all. It's a staircase to them...who cares what it is made out of? Then I watch them blithely trot up the stairs and watch the stair flex under their weight and I cringe.

The stairs are pretty damn cool though.

Last edited by Whack-a-Mole; 07-23-2009 at 02:01 AM.
  #25  
Old 10-21-2009, 02:05 AM
bugme bugme is offline
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just dropped by because i was looking for the same thing
wikipedia says that Monterey Bay Aquarium has the largest single paned window, the citation link mentions it under "How much water is in the Outer Bay Waters exhibit?" I would also be interested in seeing a list of these things,
  #26  
Old 10-21-2009, 05:13 AM
Francis Vaughan Francis Vaughan is offline
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I would be inclined to disqualify acrylic - it isn't a glass. It is a cast resin. It is only glass in so far as it is a transparent sheet.

There are a lot of single piece 8 metre diameter telescopes - they are spin cast by Roger Angel. This size is the technical limit of his process. The trick is that a spun liquid will form a parabaloid. So he fills a mould with glass pieces, starts it spinning around its axis, heats it up, lets the glass melt, form the right shape in the mould and then slowly (very slowly) cools it. Two advantages - the mirror's surface is already close to the right shape, so a lot less work is needed. But more importantly - you don't have huge changes to the internal stresses of the glass from removing all that extra glass. So making a single slab mirror that keeps its shape is possible. Bigger than this it gets pretty difficult.
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Old 06-12-2011, 08:58 AM
SuperStu SuperStu is offline
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Largest Glass Pane

I work in the glass industry and the largest I have worked with is a panel of 15000mm x 4000mm x 25mm. This panel was a technical challenge to say the least and moving this from the factory in Northern China to the store where it was installed cost nearly $300,000 alone.
I guess this qualifies as the largest.

Stuart
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Old 03-17-2017, 09:08 AM
emathias emathias is offline
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Originally Posted by SuperStu View Post
I work in the glass industry and the largest I have worked with is a panel of 15000mm x 4000mm x 25mm. This panel was a technical challenge to say the least and moving this from the factory in Northern China to the store where it was installed cost nearly $300,000 alone.
I guess this qualifies as the largest.

Stuart
These panes being installed in Chicago's new Apple store being constructed on Michigan Avenue at the Chicago River look to be nearly that size:

http://i.imgur.com/9TZ2QV4.jpg
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Old 03-17-2017, 12:09 PM
Leaffan Leaffan is offline
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Originally Posted by emathias View Post
These panes being installed in Chicago's new Apple store being constructed on Michigan Avenue at the Chicago River look to be nearly that size:

http://i.imgur.com/9TZ2QV4.jpg
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  #30  
Old 03-17-2017, 02:20 PM
beowulff beowulff is online now
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Quote:
Originally Posted by Francis Vaughan View Post
I would be inclined to disqualify acrylic - it isn't a glass. It is a cast resin. It is only glass in so far as it is a transparent sheet.

There are a lot of single piece 8 metre diameter telescopes - they are spin cast by Roger Angel. This size is the technical limit of his process. The trick is that a spun liquid will form a parabaloid. So he fills a mould with glass pieces, starts it spinning around its axis, heats it up, lets the glass melt, form the right shape in the mould and then slowly (very slowly) cools it. Two advantages - the mirror's surface is already close to the right shape, so a lot less work is needed. But more importantly - you don't have huge changes to the internal stresses of the glass from removing all that extra glass. So making a single slab mirror that keeps its shape is possible. Bigger than this it gets pretty difficult.
I know that this is a Zombie, but for anyone interested the Steward Mirror Lab gives tours, and you can see the mirrors in production. When I went there, they were polishing the dual-profile mirror for the Large Synoptic Survey Telescope.
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Old 06-12-2011, 11:03 AM
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Thanks SuperStu! 15m x 4m. Was the glass for use just as a window? or some specialized purpose?
  #32  
Old 06-13-2011, 01:39 AM
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glass zombies want ...... paaaaanes!

Some people above cite 10 meter telescope mirrors. I believe all such are segmented, usually with 36 segments making up the entire mirror.

AFAIK, the 8 meter mirrors that Francis Vaughan mentions are the largest single-piece telescope mirrors around.
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  #33  
Old 03-17-2017, 11:09 AM
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I would look near volcanoes. Obsidian is a type of glass. What is the largest single piece of obsidian?
  #34  
Old 03-17-2017, 11:47 AM
DrCube DrCube is offline
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I would look near volcanoes. Obsidian is a type of glass. What is the largest single piece of obsidian?
I would argue that a "pane" of glass is by definition man-made.
  #35  
Old 03-17-2017, 01:24 PM
Darren Garrison Darren Garrison is offline
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It is just a photograph. Your content blocking software is a moron.
  #36  
Old 03-17-2017, 02:15 PM
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garygnu:

Quote:
The Kansas City Royals are a very plain baseball team owned by Glass.
A bit less plain in recent years.
  #37  
Old 03-17-2017, 04:33 PM
Evan Drake Evan Drake is offline
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If the OP's still around:

Quote:
Originally Posted by Tom Tildrum View Post
Is this the sort of thing for which world records are kept? What/where is the largest single pane of glass?

Pilkingtons invented modern float glass back in 1953. I'd guess if anyone keeps records of glass history it would be them. You could send an email.





Between 1953 and 1957, Sir Alastair Pilkington and Kenneth Bickerstaff of the UK's Pilkington Brothers developed the first successful commercial application for forming a continuous ribbon of glass using a molten tin bath on which the molten glass flows unhindered under the influence of gravity. The success of this process lay in the careful balance of the volume of glass fed onto the bath, where it was flattened by its own weight. Full scale profitable sales of float glass were first achieved in 1960.

Wikipedia --- Float Glass
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