Is glass really made from sand? | James May's Q&A (Ep 11) | Head Squeeze 

If only life were as simple as minecraft :P

+Tom M I want my 1m cubed gold blocks

i wish it was that simple :(

lmao

Same.

And I was licking windows.

Eating sand??

+Brian Battles Time travel is possible; it's just unfair. Will anyone get that reference? XD

+Brian Battles Time travel is simple. It's going in reverse that is difficult.

Robbert-Jan merk Well with recent evidence, that might be true. I can't wait for the way we find out...

Plot Twist: James May is really Brian May's brother as well as a time traveler.

+Noel Goetowski and there mum is home secretary

lmao nah Cpt. Slow is a born rambler 😂😂😂😂

Didn't know this, and that's awesome. Thanks for sharing.

Borkthein There's similar glass in some ancient Egyptian jewelry, which was created by a meteorite that landed in the Sahara.

He's from Britian not the midwest of the United States of America

@@joshuahadams Also in Cental Europe (mainly in Czechia) you can find naturally occuring glass named Moldavite (vltavín in Czech) after the river Vltava (Moldau in German/English), because it is mostly found in its sediments. It was created by a meteorite impact about 17 million years ago in southern Germany and the ejecta peppered the future Bohemian countryside. It looks a bit like green beer bottle glass.

@@navylaks2 That knowledge is certainly not beyond horizons of someone like him no matter where he is from. And it would be quite interesting addition to this video, because there are more ways of creating glass unintentionally than just by a lightning strike.

😂👌🏻

Kyle 4:20

i was already blazing

that’s the culture that made me search for this 🤣👌🏿

Nice analogy

+erdvilla and it's even harder than steel

+Games Games But the C content vares greatly. It is mostly added to remove Oxygen from the mixture. It is an adhitive and not the main protagonist, just like in glass somo elements are added for other properties.

+Games Games It's the correct proportion of carbon that makes it steel; otherwise, if I understand correctly, you get wrought iron or cast iron.

steel is iron with added carbon

If you look at old windows you will see a slight irregularity in shape with a slight bulging towards the bottom. I thought this was to do with people in the past just being rubbish glass makers. But is apparently just the molecules of the glass slipping downwards over time. My house is 110 years old with original panes while still perfectly functional and useful do show this effect.

Malthus0 Nope! Glass is an amorphous solid. Structurally glasses are similar to liquids, but that doesn't mean they are liquid. Glass does not flow like liquids, that's just a (popular) urban legend. Some old windows are thicker at the bottom because they were manufactured that way.

Malthus0 thats just an old wife's tale , it takes thousands of years for glass to move, to be notable with the eye :)

Amorphous solid is just another way to say it's glass, not a classic liquid or solid. Resembles the common description of super cooled liquid more than it does liquid or solid, definitely doesn't go through a phase transition to make it a crystalline solid. Really has it's own properties, and what you call it depends on fine definitions that haven't been regularized to a standard. To all practical purposes it's solid, but best described simply as a glass (intermediate form with it's own properties between liquid & solid).

Glass is a liquid. That's why if you check victorian glass its wider at the bottom than the top but it's so slow that you can't see it happening. Scientist know it happens but can't find a way to record it happening that's all.

+1 . Is a great genious but is mr slowly hahaha the voice is funny with all respect!

Hrnek Bezucha It's not. There are plenty of videos here on RU-vid about that if you're interested in searching.

All that wearing away, or erosion, proceeds in balance with an overall base limit to the erosion, Ultimately that is sea level. Because the GC base elevation is around 2,200 feet, If the future sea level does not change, the base erosion limit would be another 2,200 feet. However, it will take a very long time in to the future to erode to this final depth (perhaps several million years) and who knows whether the future sea level will be lower or higher than the present. Also this would assume no future further rise or lowering in overall elevation of the GC. It is impossible to predict.

mandobob and human activity can be factored in, right? Like dam building, either present or future...

mandobob Nothing is impossible. We are, after all, standing on a pile of dust made from a star who had previously died before. From it's ashes spawned another star, the earth, mars, and every asteroid in our solar system. The story is the like for every other solar system you could ever imagine. If we can be the phoenix, who knows what we can become after we learn to fly.

Geology drives geography as you've noticed. Wish I knew how MUCH I liked doing those correlations as an amateur before attending College, might have specialized in Geography instead of just having Geology as a second major.

forgot to mention: pure SiO2 glass is called fused silica or fused quartz