But more recent findings show that stone age technology developed and spread more slowly. The stone scraper — thick, asymmetrical, and with a sharp edge — represents the hallmark of the Quina system.

Stone tools and stone circles discovered in coastal Scotland show that prehistoric people settled farther north than anyone previously believed.

A pizza stone is a plank or circle of ceramic or cordierite ... once the food bits have burnt to a crisp. I use a metal bench scraper to dislodge big chunks, and then simply wipe off the smaller ...

Quina system of making tools was previously found in Europe but never in East Asia (Ben Marwick et al, PNAS) Researchers discovered a Quina stone scraper, thick and asymmetrical with a broad and ...

We know this from tiny scratches and chips on the scrapers that match traces caused by working these materials in experiments using contemporary stone tools. European archaeologists believe that ...

We know this from tiny scratches and chips on the scrapers that match traces caused by working these materials in experiments using contemporary stone tools. European archaeologists believe that ...

including a stone scraper and a flint fragment, officials said. The abundance of materials indicated the site was once used as a resting place for Neanderthals. Additionally, an analysis of the ax ...