Template:Did you know nominations/Glass

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Glass

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A glass building facade

A glass building facade

• ... that glass is an amorphous solid in which crystallisation is prevented by rapidly cooling the molten form? Source: Richard Zallen, "The Physics of Amorphous Solids" John Wiley & Sons, 11 Jul 2008, pages 1-8 https://books.google.co.uk/books?id=fHoJn0P_XwYC&lpg=PP1&pg=PA7#v=onepage&q&f=false
  • ALT1:... that glass is an amorphous solid formed from a supercooled liquid? Source: Richard Zallen, "The Physics of Amorphous Solids" John Wiley & Sons, 11 Jul 2008, pages 1-8 https://books.google.co.uk/books?id=fHoJn0P_XwYC&lpg=PP1&pg=PA7#v=onepage&q&f=false

Improved to Good Article status by Polyamorph (talk). Self-nominated at 08:02, 9 March 2020 (UTC).

QPQ not required - less than 5 DYK noms. Polyamorph (talk) 11:44, 9 March 2020 (UTC)

Regardless: Reviewed: J. Havens Richards Polyamorph (talk) 12:21, 9 March 2020 (UTC)

Template:U Thanks for confirming. As a fairly new DYK reviewer, I wasn't sure if I was checking in the right place. BennyOnTheLoose (talk) 15:09, 9 March 2020 (UTC)

No worries, thanks for your review.Polyamorph (talk) 15:31, 9 March 2020 (UTC)

May I suggest some additional hooks that are less technical? "Amorphous solid" doesn't really do justice to such a common topic.

ALT2: ... that glass production dates back to at least 6000 years?

ALT3: ... that glass can form naturally from volcanic magma?

ALT4: ... that glass is formed from a supercooled liquid? feminist (talk) 05:26, 10 March 2020 (UTC)

Thanks Template:Ping, I like ALT3 but ALT4 would be my preference. I added amorphous solids because I wanted to emphasise the distinction that unlike most solids glass is not a crystalline material but at the same time not promote the myth that glass is a liquid. More suggestions:

ALT5: ... that glass is a non-crystalline solid formed from a supercooled liquid?

ALT6: ... that glass has an atomic-scale structure characteristic of the supercooled liquid from which it is formed? Polyamorph (talk) 07:18, 10 March 2020 (UTC)

It's your choice, but my point is that a non-scientific fact may attract more lay readers. You may of course disagree. feminist (talk) 07:20, 10 March 2020 (UTC)

A piece of volcanic obsidian glass

A piece of volcanic obsidian glass

It's a good sugestion Template:Ping and I agree it should be as accessible to the lay reader as possible. How about:

ALT7: ... that glass can form naturally from supercooled volcanic magma? Polyamorph (talk) 07:27, 10 March 2020

ALT7 is now my preferred hook but the image of obsidian volcanic glass would be more suitable in that case, as shown which appears in the article. Polyamorph (talk) 09:21, 10 March 2020 (UTC)

Template:Ping and Template:Ping does the ALT7 hook need to be approved? (it can't be me!) Also since this is a vital article with a readership of over 600,000 annually I would like to request this DYK be the first hook in its set.Polyamorph (talk) 09:16, 12 March 2020 (UTC)

Template:Ping I'm happy with the ALT7 hook. BennyOnTheLoose (talk) 12:06, 12 March 2020 (UTC)

I like ALT7. However, since I proposed similar hooks, I can't approve it. BennyOnTheLoose's comment above can be taken as an approval of ALT7. feminist (talk) 14:35, 12 March 2020 (UTC)

• 16px Hi, I came by to promote ALT7, but there is close paraphrasing from the sources which needs to be put in quotes or rewritten in your own words:
• Source: Recently we presented evidence that an isotropic non-crystalline metallic phase (dubbed “q-glass”) could be formed by growth from a melt.
• Article: In 2004, NIST researchers presented evidence that an isotropic non-crystalline metallic phase (dubbed "q-glass") could be grown from the melt. Template:Tq
• Source: This phase is the first phase, or “primary phase,” to form in the Al-Fe-Si system during rapid cooling of the melt.
• Article: This phase is the first phase, or "primary phase", to form in the Al-Fe-Si system during rapid cooling.
• Source: There is a nucleation barrier, which implies an interface between the glass and the melt.
• Article: Yet there is a nucleation barrier, which implies an interfacial discontinuity (or internal surface) between the glass and the melt.
• Source: It also has a high elasticity, making glassware 'ring'. It is also more workable in the factory, but cannot stand heating very well.
• Article: It has a high elasticity, making glassware "ring" and is more workable in the factory, but cannot stand heating very well.
• Yoninah (talk) 11:22, 15 March 2020 (UTC)

• Template:Ping Apologies for missing those but thank you for your diligence in spotting them. I have re-written those parts you have highlighted. Cheers, Polyamorph (talk) 16:13, 15 March 2020 (UTC)