Home | About Us | Contact Us | Site Map
State-of-the-Art Glass and Architectural Metal Installations by Elmont Glass Company
   

Selected Projects (scroll down and select)

Liquid Crystal Switchable Privacy Glass for...

Entertainment Industry

Office

Heathcare

Hospitality

Residential

Spa

Marine

Specialty Items


Low 'e' and Radiant Heat Glass

Sun Control Glass

Restoration and Historical Glass

Glass Art

Newest Projects


Conventional Glass

New York Times glass office

Philip Johnson Urban House

JFK Airport glass room

Madison Ave. Revolving Door

Corrugated Chicken Wire Glass Roof Panel for MOMA

Custom Viracon Glass for MOMA

glass door & windows

glass installation

glass wall

revolving door

Air France tempered glass railing

blue tabletop

Cablevision mirror finished stainless steel gate

curved shower doors

curved skylight

29th Street

Tadiran safety glass

Park Avenue glass wall


GLASS FACTS

GLASS FACT:

GLASS IS ACTUALLY DEFINED AS A LIQUID OF A VERY GREAT VISCOSITY

GLASS DEFINITION glass [1] (noun) [Middle English glas, from Old English glaes; akin to Old English geolu yellow -- more at YELLOW] First appeared before 12th Century

1 : any of various amorphous materials formed from a melt by cooling to rigidity without crystallization: as

a : a usu. transparent or translucent material consisting esp. of a mixture of silicates

b : a material (as obsidian) produced by fast cooling of magma


GLASS FACT:

Many people believe that glass "flows" like a liquid, and the proof most often cited is that stained glass windows in ancient cathedrals are thicker at the bottom than at the top. The idea that glass is a highly viscous liquid at room temperature has even made its way into some textbooks.

Someone finally decided to test the idea, and it turns out to be wrong. Edgar Dutra Zanotto, a professor of materials engineering at the Federal University of Sao Carlos in Brazil, looked up the chemical composition of some 350 pieces of glass from 12th century cathedrals, calculated their viscosity, and then determined their flow rates by extrapolating the viscosity curves of hot glass to lower temperatures.

According to Zanotto's calculations, you would have to heat a typical 12th-century piece of glass to approximately 414 degrees C to observe any significant movement in the course of 800 years. Without high heat, you would have to wait about a hundred million trillion trillion years to observe any flow, far longer than the age of the universe.


GLASS FACT:

FOURTH STATE OF MATTER

What makes glass a unique material is that it's always a liquid; glass is known as "the fourth state of matter" because it has no solid or gaseous state. Even though windows and wine goblets seem to be solid, the glass they're made of is actually a super-cooled liquid whose molecules are moving very, very slowly. As the glass heats up in the kiln, its liquid nature becomes visible. At about 1450oF, you can see the edges of the cut glass starting to soften and melt. At 1550oF, most glass is beginning to actually flow and behaves like syrup (extremely hot syrup!), and as its temperature continues to rise, you can actually see it moving in the kiln.


TOP

 

Call us today at: 212-936-2501 or 516-248-8860

Glass | Storefronts | Table Tops | Shower Doors | Mirrors | Contact Us
Glass Technology | Liquid Crystal Switchable Privacy Glass | Low-E | Bullet Resistance | Site Map

© 2013 Elmont Glass Company, Inc.