#Nature #Y2012 An early and enduring advanced technology originating 71,000 years ago in South Africa www.nature.com/articles/nat... #Nature #Y2024 Adaptive foraging behaviours in the Horn of Africa during Toba supereruption www.nature.com/articles/s41...

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An early and enduring advanced technology originating 71,000 years ago in South Africa - Nature

This study shows that a highly advanced stone tool technology (microlithic) appears earlier than originally thought; this microlithic technology persisted over a vast time span (∼11,000 years), and was part of an even longer-lived (>100,000 years) advanced technology of complex heat treatment.

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#Y2012 El programa https://naukas.com/2012/05/16/el-programa/ por @xurxomar en @Naukas_com "Recuerdo muy bien las noches en que descubrí y aprendí los nombres de las estrellas. Nos juntábamos y nos alejábamos al anochecer unos 2 km del pueblo para dejar atrás las luces. Y ahí estaban todas."
#Y2012 El programa naukas.com/2012/05/16/e... por @xurxomar en @Naukas_com "Recuerdo muy bien las noches en que descubrí y aprendí los nombres de las estrellas. Nos juntábamos y nos alejábamos al anochecer unos 2 km del pueblo para dejar atrás las luces. Y ahí estaban todas."
#PhysRevE #Y2012 Nonlinear shallow ocean-wave soliton interactions on flat beaches, by Mark J. Ablowitz and Douglas E. Baldwin https://journals.aps.org/pre/abstract/10.1103/PhysRevE.86.036305 "M.J.A. observed these interactions in Nuevo Vallarta, Mexico, and D.B. observed them on Venice Beach, California (2000 km away). Both authors take thousands of photographs. The water depth was shallow, usually between 5 and 20 cm; the beaches are long and relatively flat; the interactions usually happen within 2 hours before and after low tide; cross-waves produced near a jetty induce these interactions. These X- and Y-type interactions usually come in groups, which last a few minutes. Authors saw many X- and Y-type interactions each day of observations; the relative frequencies of the interactions were different at the two beaches—M.J.A. saw X-type interactions often than D.B."
#PhysRevE #Y2012 Nonlinear shallow ocean-wave soliton interactions on flat beaches, by Mark J. Ablowitz and Douglas E. Baldwin journals.aps.org/pre/abstract... "M.J.A. observed these interactions in Nuevo Vallarta, Mexico, and D.B. observed them on Venice Beach, California (2000 km away)"
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