Sentences with phrase «obsidian tools»

The remaining 10 percent of obsidian tools — as determined by x-ray fluorescence studies at the University at Albany — came from at least 10 other geological sources scattered throughout central Mexico.

For whatever reason, the people who lived in the houses excavated at Yautepec all used obsidian tools from five different geological sources.

Within minutes, in the last light of a November evening, he discovered it was littered with obsidian tools.

The earliest obsidian tools, found in East Africa, are nearly two million years old, and obsidian scalpels are still used today in specialised medical procedures.

The newly developed method, which saves time and money, will first be used to study obsidian tools made by early humans, including Neanderthals and Homo erectus, tens of thousands of years ago.

In addition to the obsidian tools, a total of 88 pigment lumps, including two pieces with grinding marks, came from an undetermined distance outside the Olorgesailie vicinity, Brooks» group says.

Not exact matches

Obsidian used for the Middle Stone Age tools came from far away, raising the likelihood of long - distance contacts and trading among hominid populations near humankind's root.

A substantial number of Olorgesailie's Middle Stone Age tools are made from obsidian that came from at least 25 to 50 kilometers away from the excavation sites.

We sought to bring new tools for chemical analysis with us into the field, so we can do obsidian sourcing as we excavate or survey an archaeological site, not wait until months or years later to learn the results.

Obsidian, naturally occurring volcanic glass, is smooth, hard, and far sharper than a surgical scalpel when fractured, making it a highly desirable raw material for crafting stone tools for almost all of human history.

The Yautepec excavations encountered quite dense concentrations of artifacts, and in six months of fieldwork, we recovered 1.2 million potsherds and nearly 50,000 obsidian artifacts, mainly blades and other tools.

Other ancient mariners, he discovered, had ventured into stormier waters to the north: Some 21,000 years ago, people had paddled boats across 30 miles of choppy water from Honshu to Kozushima Island to fetch shiny black obsidian, a type of volcanic glass, for stone tools.

By about 320,000 years ago, tools were replaced with obsidian from regions farther away — up to 95 kilometers away over rough terrain — an indication of travel and potentially trade.

And our new HTML5 rapid authoring tool — Obsidian Black — is set to be a game - changer in the industry.

Starting with the presentation of cognitive learning theories and how they can be applied in instructional video design, and followed up by resources including best practices for the creation of such videos, descriptions of software tools, and guidelines for video design and development, Obsidian Learning's free eBook Transforming Learning: Using Video For Cognitive, Emotional, And Social Engagement provides a thoughtful, well - researched roadmap for using video to greatest effect for instructional purposes.

In 2015, Obsidian applied these practices to the design and development of Obsidian Black, an HTML5 authoring tool for today's mobile learner.

This free eBook is Obsidian Learning's latest contribution to the body of research associated with the effectiveness of video used as a tool for learning.

Reading it you will learn all you need about video software tools, how to design and apply instructional video, along with Obsidian's video project development process and the relating case study: Learning is Life.

It also provides a handy list of mobile learning development tools such as Adobe Captivate, Articulate Storyline, Claro, gomo learning, and our own rapid authoring tool Obsidian Black, and briefly describes the capabilities of each tool.

La Luna Loca Gorgeous fabric and design from Bali, Mexico and Nepal, much of it designed by owner Kathy Kleczek, shows up in dresses, tops, pants, scarves galore, hand knit sweaters, boiled wool pieces, hand - tooled purses adorned with fire obsidian, jade and turquoise, and etched silver jewelry made by a Native American artist.

The island held an important place in the network of Maya trading routes, and the exhibit includes flint tools, obsidian and pottery all of which originated on the Central American mainland.

The Mayan Civilization took advantage of the area's many natural resources, including limestone (for construction), the volcanic rock obsidian (for tools and weapons) and salt.

The mutable quality of obsidian made it a material often used by prehistoric people to make tools.

Her writing has appeared in Not That But This, Obsidian Journal, Among Margins: Critical & Lyrical Writing on Aesthetics, and she has a forthcoming first book called SIR, a reflection on naming as a tool for undefining the defined, that will be published with Litmus Press.

This exhibition continues to explore the artist's interest in opacity, transparency and the psychology of looking, with specific references to the Claude glass — an 18th - century painter's tool that contained a lustrous black mirror made of glass or obsidian and was used to view tonalities in landscape subjects.

The exhibition delves further into the artist's exploration of opacity and transparency with a group of wall pieces that are comprised of hundreds of small convex glass mirrors and polished black onyx cabochons, which specifically makes reference to the Claude glass — an 18th - century painter's tool that contained a lustrous black mirror made of glass or obsidian used to view tonalities in landscape subjects.