Assertion: obsidian's use | /r/CapableOf | increase the efficiency of core usage
Facets:
value: compared to the levallois flake technique
type: OTHER
value: exponentially
type: MANNER
Source sentences:
text: The use of blades exponentially increases the efficiency of core usage compared to the Levallois flake technique, which had a similar advantage over Acheulean technology which was worked from cores.