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Glass is a non-crystalline amorphous solid that is often transparent and has widespread practical, technological, and decorative usage in, for example, window panes, tableware, and optoelectronics. The most familiar, and historically the oldest, types of glass are "silicate glasses" based on the chemical compound silica (silicon dioxide, or quartz), the primary constituent of sand. The term glass, in popular usage, is often used to refer only to this type of material, which is familiar from use as window glass and in glass bottles. Of the many silica-based glasses that exist, ordinary glazing and container glass is formed from a specific type called soda-lime glass, composed of approximately 75% silicon dioxide (SiO2), sodium oxide (Na2O) from sodium carbonate (Na2CO3), calcium oxide (CaO), also called lime, and several minor additives.
Many applications of silicate glasses derive from their optical transparency, giving rise to their primary use as window panes. Glass will transmit, reflect and refract light; these qualities can be enhanced by cutting and polishing to make optical lenses, prisms, fine glassware, and optical fibers for high speed data transmission by light. Glass can be coloured by adding metallic salts, and can also be painted and printed with vitreous enamels. These qualities have led to the extensive use of glass in the manufacture of art objects and in particular, stained glass windows. Although brittle, silicate glass is extremely durable, and many examples of glass fragments exist from early glass-making cultures. Because glass can be formed or moulded into any shape, it has been traditionally used for vessels: bowls, vases, bottles, jars and drinking glasses. In its most solid forms it has also been used for paperweights, marbles, and beads. When extruded as glass fiber and matted as glass wool in a way to trap air, it becomes a thermal insulating material, and when these glass fibers are embedded into an organic polymer plastic, they are a key structural reinforcement part of the composite material fiberglass. Some objects historically were so commonly made of silicate glass that they are simply called by the name of the material, such as drinking glasses and eyeglasses.
Scientifically, the term "glass" is often defined in a broader sense, encompassing every solid that possesses a non-crystalline (that is, amorphous) structure at the atomic scale and that exhibits a glass transition when heated towards the liquid state. Porcelains and many polymer thermoplastics familiar from everyday use are glasses. These sorts of glasses can be made of quite different kinds of materials than silica: metallic alloys, ionic melts, aqueous solutions, molecular liquids, and polymers. For many applications, like glass bottles or eyewear, polymer glasses (acrylic glass, polycarbonate or polyethylene terephthalate) are a lighter alternative than traditional glass.

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  1. 7

    Tips Vaporizer and Freeze Bong combo

    I have been looking for a clean, cool, thick, flavorful, vaporized flower hit for ages now. I have tried a bong with an ice catcher, and connecting it to a Storz & Bickel Plenty vaporizer with a silicone tube. I find that the ice just masks the hot vapor and you get both cool and hot air. I...
  2. T

    Review MM Tech glass review and some retail whining

    Just wanted to give a positive review of my bong/bubbler Honestly bought this figuring it would be a display piece but it is set up and cranking for everyday use Hands free, stable and when placed on a silicone mat practically immovable- of course the cat had to make a liar out of me hence the...
  3. ddave

    Water pipe Recycler or Tornado Vortex Preferred for Desktop Vaporizer

    Considering a water piece for inclusion in the mod kits. I own a sweet recycler and can get a good deal on them. I can hit it as hard as I can, and never a drop of water up the mouthpiece. Hits are amazingly smooth. But, also have seen and am interested in a Tornado Vortex piece as well. I've...
  4. pxl_jockey

    Tips How Do You Clean Your Glass

    @momofthegoons I have searched high and low, but mostly high, for your “simple green setup” recipe/formula/protocol/tutorial and I cannot find it. I’ve scoured the Glass section to no avail. I’m at my wits end and about to go vape multiple vapcaps just to cope! I know what Simple Green is &...
  5. BD9

    Glass Sale!

    I didn't know where to put this, so I made a thread. Elev8 Glass a division of 7th Floor Vapes is having a buy one get one free sale on glass. https://www.elev8glassgallery.com/
  6. Philreal187

    Vivant Alternate, mini under dog, glass, screens and boxes

    I was doing a fall clean out and wanted to offer some vapes and accessories to the community. I ask that if you can cover shipping that would be a huge help! I would also cover shipping to you if you got any vapcap accessories such as screens or o-rings for trade..! *alternate is spoken...
  7. Custom work

    Custom work

    Some love from Scratched Glassworks...
  8. SlowDrawMcGraw

    Glass Glass Function Thread

    Leisure Glass Incycler
  9. momofthegoons

    Glass Glass adapters

    Since there seems to be some interest in trying to get an adapter similar to the old Cloud Buddy, I thought I would move the conversation here. Decided to clean it before the pics this time... :dog: Now if you recall, I had broken my og Cloud Buddy. The original was 18mm throughout. The...
  10. momofthegoons

    Glass Where Do You Buy Your Glass

    Funny.... I always said I'd never get into glass.... that I'd never acquire GAS. And guess what? :dog: I've got it bad! This is the thing... I hate spending a lot of money on glass. It's come to my attention that most of the glass we buy (even from big glass companies) comes from China. And...
  11. A

    Safety Glass on Glass safety

    hello everybody, While using a Ti nail as a vapcap DIY glass adapter I noticed glass was scratching a little the 14mm Ti male adapter (black fine dust was stuck on glass female adapter) This is normal as gong are not polished (to help with grip?), and due to this each time you put your gong in...
  12. momofthegoons

    Tips Glass Repair

    About a month ago, I broke one of my favorite bubblers... the limited series Leviathan M&M Tech bubbler. I still get a little sick to my stomach thinking about it.... Fortunately, I was steered towards a glass repair guy on Instagram who did an amazing job. Hard to tell from the pic, but...
  13. fluffhead

    Misc. Your Current Lineup

    I am curious what vape(s) everyone uses and for what purposes. Many of us vaporists have been afflicted by VAS over the years and have lineups that change. I wanted a thread for everyone to have a place to share what vapes we use and why. I'll go first: @Pipes Project Eraser - daily driver with...
  14. t-dub

    Cranberry Extract

    I love seeing all the pink water out there!!! My journey with cranberry extract started with trying RezBlock. The first formula, the green one, worked ok but its makeup perplexed me. When the next formula came out I guessed fairly quickly that it tasted like cranberry extract. Going online I...
  15. EveryDayAmnesiac

    Glass The Glass You Use

    I don't really have a glass "collection" or anything - I just have what I need and use what I have. Nothing fancy. But had 'em for years now and they get the job done. I would love to upgrade, but I can't justify it when I already have pieces that work just fine and are all American-made...
  16. Wheezy


    This is very much needed for our viewing pleasures. So without further ado, I'll get the party started.

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