None of Egypt’s pyramids existed. Khafre wouldn’t commission the Great Pyramid of Giza for another 1500 years. But some time around 4000 BCE an Egyptian artist discovered the secret. This secret was the wonderful alchemy which transformed sand, ash, calcite lime, copper and fire into a lustrous blue-green gem worthy of the pharaohs. Faience, also known as Egyptian paste, is the basis for the world’s first glazed ceramic. The faience recipe improved and spread to Persia, Turkey and througout the Indus valley. Now researchers from the University of Western England believe faience may also be the key to better 3D printing.
“It is fascinating to think that some of these ancient processes, in fact the very first glazed ceramics every created by humans, could have relevance to the advanced printing technology of today. We hope to create a self-glazing 3D printed ceramic which only requires one firing from conception to completion rather than the usual two.”
[youtube]http://www.youtube.com/watch?v=r0TQKm5ciY0[/youtube]
Photo of Shawabti of Lady Sati (1390-1352 BCE) by David Liam Moran via Wikimedia commons.
Author: Brian Nitz
Brian remembers when a single tear dredged up a nation's guilt. The tear belonged to an Italian-American actor known as Iron-Eyes Cody, the guilt was displaced from centuries of Native American mistreatment and redirected into a new environmental awareness. A 10-year-old Brian wondered, 'What are they... No, what are we doing to this country?' From a family of engineers, farmers and tinkerers Brian's father was a physics teacher. He remembers the day his father drove up to watch a coal power plant's new scrubbers turn smoke from dirty grey-back to steamy white. Surely technology would solve every problem. But then he noticed that breathing was difficult when the wind blew a certain way. While sailing, he often saw a yellow-brown line on the horizon. The stars were beginning to disappear. Gas mileage peaked when Reagan was still president. Solar panels installed in the 1970s were torn from roofs as they were no longer cost-effective to maintain. Racism, public policy and low oil prices transformed suburban life and cities began to sprawl out and absorb farmland. Brian only began to understand the root causes of "doughnut cities" when he moved to Ireland in 2001 and watched history repeat itself. Brian doesn't...
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