Publications by authors named "A Olle"
Article Synopsis
- Increasing evidence of Neanderthal osseous industry shows they used bone fragments for practical tools, with diverse shaping techniques, but no bone spear points were previously identified in these contexts.
- A detailed study of a bone spear point from the Abric Romaní site in Spain reveals its manufacture and use, with clear signs of intentional knapping and wear patterns consistent with serving as a spear.
- This finding enhances our understanding of Neanderthal hunting behavior and highlights the adaptability of their technology 50,000 years ago, shedding light on previously overlooked aspects of their tool-making strategies.
Article Synopsis
- Homo sapiens began expanding into southeastern Europe around 47,000 years ago, using Initial Upper Palaeolithic (IUP) tools, and reached western Siberia by approximately 45,000 years ago.
- H. sapiens also appeared in northeastern Asia around 40,000 years ago, with evidence of their presence at a site in China dating back to 43-41,000 years ago.
- The site of Shiyu in northern China, dated to about 45,000 years ago, showcases advanced cultural behaviors through its stone tools, long-distance trade of obsidian, enhanced hunting techniques, and the discovery of a human cranial bone.
PETAL (Petawatt Aquitaine Laser) is an ultrahigh-power laser dedicated to academic research that delivers sub-picosecond pulses. One of the major issues of these facilities is the laser damage on optical components located at the final stage. Transport mirrors of the PETAL facility are illuminated under different polarization directions.
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