Shock-Absorbing Spear Points Kept Early North Americans on the Hunt by Bruce Bower | Free Audiobook

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Title: Shock-Absorbing Spear Points Kept Early North Americans on the Hunt
Author: Bruce Bower
Narrator: Jamie Renell
Format: Unabridged
Length: 4 mins
Language: English
Release date: 04-26-17
Publisher: Science News
Genres: Science & Technology, Magazine & Radio

Summary:
Clovis people, who crossed a land bridge from Asia to North America around 13,500 years ago, fashioned stone weapons that slightly crumpled at the base rather than breaking at the tip when thrust into prey, say civil engineer Kaitlyn Thomas of Southern Methodist University in Dallas and colleagues. The Clovis crumple rested on a toolmaking technique called fluting, in which a thin groove was chipped off both sides of a stone points base, the researchers report in the May Journal of Archaeological Science.
"Shock-Absorbing Spear Points Kept Early North Americans on the Hunt" is from sciencenews.com, published on April 14, 2017.

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