Dictation: Humans Made Flour 30,000 Years Ago
本文
We tend to think of cavemen as pretty serious carnivores, hunting game and then roasting the yummy bits over a roaring campfire. But scientists just reported discovering traces of starch on some ancient stone tools. Which suggests that there were probably more than a few bakers in the bunch way back when. The findings appear in the Proceedings of the National Academy of Sciences. [Anna Revedin et al., "Thirty thousand-year-old evidence of plant food processing"]
Researchers collected stone tools from three archaeological sites in Italy, Russia and the Czech Republic. Our Paleolithic ancestors called these digs home some 30,000 years ago. The markings on the recovered tools suggest that they were used like grindstones and pestles for processing grains. And they still contained traces of flour.
The flour grains came mostly from cattails and ferns, plants whose roots are rich in starch, kind of like a potato. Processing these plants probably involved peeling, drying and grinding their roots. The resulting flour could then be whisked into a dough and cooked.
The finding pushes back the first known use of flour by some 10,000 years. Which means that 300 centuries ago, Fred and Wilma might have had a kind of prehistoric pita bread on the menu.
聽寫
We tend to think of cave pretty serious and comforce, huntung roasting the younger meat oment and worry game fire. But scientific just reported the discoverying twiseted of star chant some ancient stone tools which suggest they were probably more than a fewer baker and bounch way.
Researchers collected stone tool from three ancheriligic sites, italy , russia and czeech republic. Our perior lithic ancestry called this home some 30000 years ago. The marking on the recovery tool suggest they were used like crime stone and pastal processing scrap, and they still contain twisted flower. the flower grams can mostly from cocktail and ferums, planed to rearch stoach, kindly like potato.
Processing explain probably involed pealing, drying and graming the root. The resultsing flowers can then be wisted to dove and cook.
The finding perscept first know used flower by same 10000 years, which means the 300 centries ago, fram women might have kind of pretty story like
單字
carnivores
yummy
Paleolithic
grindstone
pestle
cattails
ferns
whisk
pitta
We tend to think of cavemen as pretty serious carnivores, hunting game and then roasting the yummy bits over a roaring campfire. But scientists just reported discovering traces of starch on some ancient stone tools. Which suggests that there were probably more than a few bakers in the bunch way back when. The findings appear in the Proceedings of the National Academy of Sciences. [Anna Revedin et al., "Thirty thousand-year-old evidence of plant food processing"]
Researchers collected stone tools from three archaeological sites in Italy, Russia and the Czech Republic. Our Paleolithic ancestors called these digs home some 30,000 years ago. The markings on the recovered tools suggest that they were used like grindstones and pestles for processing grains. And they still contained traces of flour.
The flour grains came mostly from cattails and ferns, plants whose roots are rich in starch, kind of like a potato. Processing these plants probably involved peeling, drying and grinding their roots. The resulting flour could then be whisked into a dough and cooked.
The finding pushes back the first known use of flour by some 10,000 years. Which means that 300 centuries ago, Fred and Wilma might have had a kind of prehistoric pita bread on the menu.
聽寫
We tend to think of cave pretty serious and comforce, huntung roasting the younger meat oment and worry game fire. But scientific just reported the discoverying twiseted of star chant some ancient stone tools which suggest they were probably more than a fewer baker and bounch way.
Researchers collected stone tool from three ancheriligic sites, italy , russia and czeech republic. Our perior lithic ancestry called this home some 30000 years ago. The marking on the recovery tool suggest they were used like crime stone and pastal processing scrap, and they still contain twisted flower. the flower grams can mostly from cocktail and ferums, planed to rearch stoach, kindly like potato.
Processing explain probably involed pealing, drying and graming the root. The resultsing flowers can then be wisted to dove and cook.
The finding perscept first know used flower by same 10000 years, which means the 300 centries ago, fram women might have kind of pretty story like
單字
carnivores
yummy
Paleolithic
grindstone
pestle
cattails
ferns
whisk
pitta
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