| The history of the knife is an intriguing one dating hack to simple flint tools knapped by prehistoric man. |
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| As soon as you come near to the South Downs, you get into the chalk lands, and all the older buildings begin to have knapped flints in them. |
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| Although they have surprisingly sharp cutting edges when freshly knapped, flake tools soon become dull. |
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| Has our cognitive ability risen steadily since our forebears knapped the first stone tools? |
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| Large numbers of Mesolithic stone tools and weapon points were found, with toolmaking waste to show that some tools were knapped, retouched and repaired on site. |
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| On the reverse, the knapped area is more limited and slightly flat and it is longer and more oblique on the front face. |
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| Some flints were knapped so painstakingly that their outer surfaces were not only flat but also rectangular. |
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| The Paleolithic is characterized by the use of knapped stone tools, although at the time humans also used wood and bone tools. |
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| For 35 years, Nash painted a small range of elemental things – trees and tree trunks, knapped flints, birds' nests, doorways – regrouping them like pieces on a chessboard, or like soldiers on a battle plan. |
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| The process is known as knapping and the results are knapped flints. |
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| These tools, of a type called Oldowan, after the gorge, were small cobbles of volcanic stone that had been knapped — shaped into rough cutting or chopping implements by having flakes struck off their edges. |
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| In Langdale, there many outcrops of the greenstone were exploited, and knapped where the stone was extracted. |
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| This small microlith is made of blackish brown flint blade knapped from creataceous flint. |
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| The finds include, among other things, deeply denticulated sickle blades knapped from flint which were used for harvesting, as well as arrow heads and stone implements. |
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