Sentences with phrase «using sharp stone»

The cut marks had clearly been made using a sharp stone, and they were at a site that was used by Lucy's species, Australopithecus afarensis.

Not exact matches

Simple but effective razors dating from the Chalcolithic period (also known as the Copper Age) date shaving back some five millennia at least, and it's entirely possible that shaving predated the use of metal tools, as techniques involving hair removal using shells and sharp - edged stones have also been documented.

Using just scraps of wood and hot embers, our evolutionary cousins figured out how to make tar, a revolutionary adhesive that they used to make formidable spears, chopping tools and other implements by attaching sharp - edged stones to handles, a new study suggests.

Stone artifacts unearthed in the same sediment as the fossil jaw included chunks of rock from which sharp flakes were pounded off and used as cutting tools.

But using a stone for multiple purposes, and using one to crack apart another into a sharper tool, is more advanced behavior.

The maker mainly used a two - handed technique, holding a core on another large rock, or anvil, and hitting it with a hammer stone to release sharp flakes.

If the nails aren't that long but are sharp you can simply file them or use a pumice stone to take off the tips.

Fontana will be represented by a focused survey of his nearly five - decade career, spanning his earliest Spatial Concepts, in which small canvases evoke immense galaxies through swirling fields of paint subtly embedded with small stones and broken glass, to his famous Attessi, or cuts, in which the artist has used a sharp knife to literally slice through the canvas surface into another space.

If you are building a garden pond, use old carpet to line it before you put the pond liner in - it protects the liner from sharp stones