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A28    SCIENCE
                       Friday 14 July 2017


















                 Re-creating old weapons for new discoveries of human history


            By DAKE KANG
            Associated Press
            KENT,  Ohio  (AP)  —  Metin
            Eren  wasn’t  satisfied  just
            digging up ancient arrow-
            heads  to  learn  about  the
            past.  He  wanted  to  use
            them  for  their  intended
            purpose.
            But  shooting  and  shatter-
            ing  priceless  millennia-old
            tips  is  out  of  the  question,
            so instead, the archaeolo-
            gist  chips  replicas  of  the
            stone-age  weapons  by
            hand.
            “We  can  break  ‘em  and
            throw  ‘em,”  he  says.  “Our
            imagination is the limit.”
            The 34-year-old Kent State
            University  professor  spe-
            cializes in experimental ar-
            chaeology  —  re-creating
            ancient  pots,  knives  and
            arrows. By testing the repli-
            cas in ways impossible with
            the  originals,  archaeolo-  In this June 1, 2017, photo, Metin Eren, an archaeologist at Kent State University, examines an imitation of an ancient arrow in Kent,
            gists study how tools found   Ohio.
            in   archaeological    digs                                                                                                     Associated Press
            were actually used.          “Even though it’s the Stone  speculation  running  from  “first  truly  American  inven-  exceptional  example  by
            “The stuff that we find, it’s   Age, they’re still thinking in  religious  rituals  to  mere  tion.”                conducting  rigorous  con-
            just  stuff,”  says  Brian  An-  a  very  modern  way,”  Eren  decoration.             Scientists from Brazil to Brit-  trolled  experiments,”  said
            drews,  an  archaeologist    says.                        That’s  where  experimen-    ain  previously  conducted  Buchanan,  who  has  co-
            at  Rogers  State  University.   Already  he  has  cracked  tal   archaeology   came  many kinds of experiments  authored papers with Eren.
            “Stuff’s cool, but we’re not   one longtime mystery. In the  in.  By  testing  the  pres-  with re-creations, and bor-  “Earlier  experimental  stud-
            interested  in  stuff  for  the   early  1900s,  archaeologists  sure  at  which  the  arrow-  rowing  techniques  and  ies  suffered  from  being  of
            sake  of  itself.  We’re  inter-  found unusually shaped ar-  heads would crack using a  technologies  from  other  variable  quality  and  rarely
            ested in the human behav-    rowheads  in  North  Amer-   $30,000  crusher  and  com-  scientists  has  been  long-  built on previous studies.”
            iors that went into making   ica,  with  grooves  carved  puter models, Eren discov-   standing practice.           On  a  Thursday  morning,
            it.”                         from  the  base  halfway  to  ered the grooves act as a  Still, Eren’s lab, only a year  Eren  hunches  over  a  pile
            Eren’s  experiments  focus   the head’s tip.              shock absorber.              old,  stands  out  for  its  cut-  of  flint  shavings.  Donning
            on making sense of ancient   They  first  appeared  over    It  allows  the  arrowhead’s  ting-edge  equipment  and  goggles,  he  grips  a  chunk
            weapons  littered  across    13,000  years  ago  and  thinned  base  to  crumple  singular focus on archaeo-        of  obsidian  the  size  of  a
            the  Americas,  illustrating   spread  rapidly  across  the  slightly and absorb energy  logical   experimentation,  large pickle jar and cracks
            how  humans  first  settled   continent,   but   existed  upon  the  arrow’s  impact,  says  Briggs  Buchanan,  a  a  moose  antler  down  on
            the  Western  Hemisphere:    nowhere  else.  Research-    making the head less likely  professor  at  the  University  one edge. With a resound-
            through  careful  prepara-   ers  were  puzzled  why  the  to break.                   of Tulsa.                    ing snap, a blade of obsid-
            tion,  long-term  planning,
            and refined technology.      grooves were carved, with  Archaeologists  call  it  the  “Metin’s  lab  is  setting  an  ian chips off.q
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