Mattox, D.M. (2014). Handbook of Physical Vapor Deposition (PVD) Processing. Cambridge University Press. p.60. ISBN 978-0-08-094658-0. Despite all of those drivers, however, and the additional up-firing Atmos speakers, the surround-sound effect is limited. I wasn’t overly impressed with the way Sky Glass delivers bass, either; even with the Bass Boost option toggled on in the settings, there’s very little low-end thump and rumble. Archaeology and materials science has turned up clues to where glass was made in the ancient world and how it was passed around among empires during the Late Bronze Age. Rehren, too, has been rethinking whom glass was for, since Near Eastern merchant towns had so much of it and large amounts were shipped to Greece. “It doesn’t smell to me like a closely controlled royal commodity,” he says. “I’m convinced that we will, in 5, 10 years, be able to argue that glass was an expensive and specialist commodity, but not a tightly controlled one.” Elite, but not just for royalty.

a b c "Mining the sea sand". Seafriends. 8 February 1994. Archived from the original on 29 February 2012 . Retrieved 15 May 2012.

What Do We Do

Metallic gold, in very small concentrations (around 0.001%, or 10 ppm), produces a rich ruby-colored glass ("Ruby Gold" or "Rubino Oro"), while lower concentrations produces a less intense red, often marketed as " cranberry". The color is caused by the size and dispersion of gold particles. Ruby gold glass is usually made of lead glass with added tin.

Greer, A. Lindsay; Mathur, N (2005). "Materials science: Changing Face of the Chameleon". Nature. 437 (7063): 1246–1247. Bibcode: 2005Natur.437.1246G. doi: 10.1038/4371246a. PMID 16251941. S2CID 6972351. Hartel, Richard W.; Hartel, AnnaKate (2014). Candy Bites: The Science of Sweets. Springer Science & Business Media. p.38. ISBN 978-1-4614-9383-9. Whitehouse, David (2003). Roman Glass in the Corning Museum of Glass, Volume 3. Hudson Hills. p.45. ISBN 978-0-87290-155-1. Tin oxide with antimony and arsenic oxides produce an opaque white glass ( milk glass), first used in Venice to produce an imitation porcelain, very often then painted with enamels. Similarly, some smoked glasses may be based on dark-colored inclusions, but with ionic coloring it is also possible to produce dark colors (see above).For those who can’t or don’t want to install a dish, Sky Glass is a far better option than Now, delivering all that exclusive Sky content in optimum 4K resolution. And now that image quality is fully up to snuff, you no longer have to worry about rival TVs offering significantly better output for the same or less.