Search results
Results From The WOW.Com Content Network
It is widely believed by stone tool experts that the technology to treat silcrete by burying under a hot fire was known 25,000 years ago in Europe. Heating changes the stone structure making it more easily flaked. [4] This process may have been the first use of so-called pyrotechnology by early mankind. [5] [6]
The hammerstone is a rather universal stone tool which appeared early in most regions of the world including Europe, India [3] and North America. This technology was of major importance to prehistoric cultures before the development of metalworking.
Shotcrete, then known as gunite, was invented in 1907 by American taxidermist Carl Akeley to repair the crumbling façade of the Field Columbian Museum in Chicago (the old Palace of Fine Arts from the World's Columbian Exposition). [3]
Indeed, after the construction of the road on the rocky mountain and the completion of the first stone-made observatory, hundreds of people from all over Greece, among them many officials (including Vasso Papandreou, then Alternate Minister of Industry, Energy and Technology), came to Skinakas in the Spring 1986, in order to participate in the ...
Bretonstone, also known as vibro-compression under vacuum, is a formerly-patented technology [2] [3] invented in the early-1970s [citation needed] by Breton S.p.A. [4]Nowadays most manufacturers of engineered stone use similar technology, typically involving quartz and a resin binder combined under vacuum, and compressed under heat into a desired form such as a countertop slab.
Sven Bilen, X-Hab 3D’s systems engineering lead, credits Penn State’s collaborative culture for fueling the company’s growth. “Penn State does particularly well at interdisciplinary ...
Options for non-combustible construction include floors, ceilings and roofs made of cast-in-place and hollow-core precast concrete. For walls, concrete masonry technology and Insulating Concrete Forms (ICFs) are additional options. ICFs are hollow blocks or panels made of fireproof insulating foam that are stacked to form the shape of the walls ...
Sarin Technologies was established in 1988. [9] On January 21, 2014, the name was officially changed to Sarine Technologies. [10]The company's first product was the Robogem, an automated device for gemstone processing, as part of an initiative promoted by the Israel Emerald Cutters Association.