The ancestors of Alaska Native people began using local copper sources to craft intricate tools roughly 1,000 years ago. Over one-third of all copper objects archaeologists have found in this region were excavated at a single spot, named the Gulkana Site.This is the site I’ve studied for the past four years as a Ph.D. student at Purdue University. In spite of its importance, the Gulkana Site is not well known.To my knowledge, it isn’t mentioned in any museums. Locals, including Alaska Native ...read more
Despite an ongoing outbreak of bird flu in dairy cows, the popularity of raw milk has only risen. Advocates claim raw milk has superior health benefits over pasteurized milk. There is little evidence to support these claims, however, and the risk of serious illness is much greater.Mississippi State University food scientists Juan Silva and Joel Komakech and nutritionist Mandy Conrad explain the difference between pasteurized and raw milk, addressing common misconceptions about the health risks a ...read more
Crocodiles have been around for a long time and lived all over the world. A fossil representing a new species of crocodile-like ancestor is the first small predatory reptile of its kind to be found in Brazil and is described in a Scientific Reports paper.The fossil, which dates back about 237 million years, predates the rise of the dinosaurs, reinforces the wide geographical distribution of crocodile-like reptiles called pseudosuchians, and represents an evolutionary link to the modern crocodile ...read more
Your heart is pounding. You’re pouring sweat. You feel like you can’t breathe. Your stomach may get into the act, too, causing nausea and/or diarrhea. You might feel lightheaded and unable to think clearly. These are all possible symptoms of what people often call an anxiety attack. The clinical term is panic attack, but whatever you call it, it’s deeply unpleasant.Episodes like these — when fear or anxiety manifest as physical symptoms — are common. Krystal Lewis, clinical psychologis ...read more
Quantum computing is like Forrest Gump’s box of chocolates: You never know what you’re gonna get. Quantum phenomena – the behavior of matter and energy at the atomic and subatomic levels – are not definite, one thing or another. They are opaque clouds of possibility or, more precisely, probabilities. When someone observes a quantum system, it loses its quantum-ness and “collapses” into a definite state.Quantum phenomena are mysterious and often counterintuitive. This makes quantum co ...read more
Author Vishay SinghPosted on Categories Discover Magazine