Date of Viking Visit to North America Pinpointed to 1021 AD

from Kottke Using samples of chopped-down wood left behind by Viking explorers at their settlement in Newfoundland and known chemical markers of powerful solar storms in 993 AD, a group of scientists has determined the exact timing of the first-known visit of Europeans to North America: 1021 AD. If you’re keeping score at home, that’s 471 years before Columbus. A team of scientists looked at wood found at the L’Anse aux Meadows Viking site. In three cases the trees had been physically cut down, and moreover, they were clearly cut with metal tools — Vikings had metal implements at the […]

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Breakthrough Covid Vaccine Tech Could Help Defeat Other Diseases

from Reuters Breakthrough technology that transforms the body into a virus-zapping vaccine factory is poised to revolutionise the fight against COVID-19 but future pandemics and even cancer could be next, scientists say. The initial success of so-called messenger ribonucleic acid (mRNA) vaccines in late-stage trials by Moderna as well as Pfizer and its German partner BioNTech is the first proof the concept works. Both experimental vaccines had efficacy rates above 90% based on interim findings, which was far higher than expected and well above the 50% threshold U.S. regulators insist upon for vaccines. Now scientists say the technology, a slow-motion […]

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Agtech’s Moment To Shine

from Forbes Agtech, the marriage of agriculture and technology, recently hit headlines with word of AppHarvest’s impending IPO. AppHarvest is an agtech startup that builds high-tech greenhouses with innovations that support water and energy conservation, including what is may be the world’s biggest greenhouse. The company’s high profile investors include domestic lifestyle entrepreneur Martha Stewart and Hillbilly Elegy author J.D. Vance. Over the summer celebrities Oprah Winfrey and Katy Perry invested in Apeel Sciences a California-based food bio company that produces a coating that extends the life of produce. Earlier this month Syngenta announced its acquisition of the Italian biotech […]

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Is Anybody Listening?

from Forbes How much longer will we continue to ignore the impact of our continued refusal to do anything to mitigate the planet’s long-standing climate emergency? California and Oregon are in flames, forcing half a million people to abandon their homes, and exceeding in a matter of weeks the area burned last year: yet we still refuse to accept that this is a direct result of the increase in global temperature caused by human activity that has turned our forests into tinder. The orange skies lending an apocalyptic, science-fiction air to San Francisco illustrate the terrible magnitude of the catastrophe […]

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R0, the Messy Metric That May Soon Shape Our Lives, Explained

from NYTs World leaders and public health experts are poised to spend the coming months or years obsessed with a variable known as R0. Pronounced “R-naught,” it represents the number of new infections estimated to stem from a single case. In other words, if R0 is 2.5, then one person with the disease is expected to infect, on average, 2.5 others. An R0 below 1 suggests that the number of cases is shrinking, possibly allowing societies to open back up. An R0 above 1 indicates that the number of cases is growing, perhaps necessitating renewed lockdowns or other measures. But […]

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Daylight Saving Time Has A Dark Side. Here’s What You Need To Know

from Fast Company A train hurtled around a corner at 82 mph, eventually coming off the rails and killing four passengers. Decades earlier, faulty decision-making resulted in the deaths of the seven-person crew of the Space Shuttle Challenger. Years before these events, a stuck valve regulating the supply of coolant to a nuclear reactor nearly resulted in the meltdown of a nuclear plant in Pennsylvania. In each of these cases, poor or inadequate sleep was one of the factors that contributed to the failure. Even if you are not an engineer working in one of those contexts, the odds are […]

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