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Henry gpass fabric1/11/2024 Right click on the X and choose Properties. When you have a missing image on your site you may see a box on your page with with a red X where the image is missing. On platforms that enforce case-sensitivity example and Example are not the same locations.įor addon domains, the file must be in public_html//example/Example/ and the names are case-sensitive. Notice that the CaSe is important in this example. In this example the file must be in public_html/example/Example/ It's just that I got really, well, I guess we're even.When you get a 404 error be sure to check the URL that you are attempting to use in your browser.This tells the server what resource it should attempt to request. JACK: Well, thanks for helping me explain the origins of glass and sorry about throwing that water on you before. Nowadays we have all sorts of glass for all sorts of purposes, and it's opened up windows, so to speak, into a whole world of inventions and discoveries. He was the first to find a way of making glass perfectly flat. Well, most of that is thanks to this guy Henry Bessemer. Ah, not bad hey.Īnd in the 17th century we got telescopes.Īs for the big sheets of glass that are used in buildings pretty much everywhere. Then in the 16th century in Venice we got our first look at ourselves thanks to mirrors. Oh, I can see everything so much more clearly now. In the 13th century in Northern Italy the first glasses to enhance eye sight came about. Yeah, I love it, love what you've done.Īs the years went on glass became more and more popular. Oh, I'm just kidding, no, no it looks great. What have you done? All the glass is stained. By the 1100s many European cathedrals were being decorated with stained glass windows, coloured with powdered metals mixed into the molten glass. Instead, you might just have a hole in your wall with an animal hide curtain or a window made out of paper, fancy. Yep, there was a time when people didn't have glass windows. JACK: Manny, Manny, can you see me? I can see you. Glass blowing was later taken by the Romans who used it, along with a sort of pressing technique, to create the first glass windows. And around the first century BC the Syrians came up with the technique of glass blowing, which truly changed the game. Over the next few hundred or so years glass making became popular across the Mediterranean, Europe and into parts of Asia. Ha.Ībout 1000 years later the Ancient Egyptians also began creating things out of glass, in particular they were quite fond of making glass beads. But instead, no, I was making this, a cup for my drink. JACK: Yeah, so, all I did was mix silica sand, lime, and soda. And some historians reckon it might have happened by accident. But the first human efforts to make glass, that we know of anyway, happened around 2500 BC, in the ancient region known as Mesopotamia. Including Australia's First Nations peoples who used it as cutting tools, as tips for spears and for ceremonial purposes. And from what experts can tell humans have been using these types of glass for hundreds of thousands of years. There are a few other types of naturally occurring glass, like fulgurite which occurs when sand is hit by lightning and tektite which is the result of a meteorite impact. The other is typically, but not always, sand. What do you think?Īs the volcano would suggest, one of the main ingredients in making glass is heat. It appears to have been formed when the molten rock from this volcano cooled rapidly resulting in this sort of blackish/greenish thing. This is obsidian, it's a type of natural glass. While we clean up, let's take a look at the long, long history of glass and I do mean long. Oh gosh sorry, you're just so terrifying sometimes. But have you ever wondered where does glass comes from? Why can I see through it? Is it just hot sand? And why can't I throw stones in glass houses? Well, I've asked a very dear friend of mine to help explain. JACK, REPORTER: When it comes to drinking vessels, for me, nothing beats a glass.
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