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A 40,000-year-old Chinese stone tool culture unlike any other
Enlarge / This chert bladelet still has a remnant of its bone haft attached. (credit: Wang et al. 2022) We know the oldest human cultures only from their most durable parts: mostly stone tools, sometimes bone. Show an experienced Pleistocene archaeologist a chert blade, and they can probably tell you which hominin species made it, […]
Trapped in amber: Fossilized dinosaur-era crab bridges evolutionary gap
Enlarge Once upon a time, during the Cretaceous period, a tiny crab wandered out of the water onto land and somehow got trapped in amber, which preserved it for 100 million years. At least that’s what a team of scientists hypothesize might have happened in a new paper announcing their discovery of the oldest known […]
Physicists show that flying beer coasters will flip 0.45 seconds into flight
Enlarge / University of Bonn physicists were inspired to investigate the aerodynamics of flying beer mats after traveling to Munich with a German physics demonstration show. (credit: sheck / iStock / Getty Images Plus) Many a pub crawler has engaged in the time-honored tradition of throwing beer mats—those round cardboard coasters that are ubiquitous in […]