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Lost link explains the emergence of flying dinosaurs
Publicado em 14 dezembro 2020
The first vertebrates to fly were pterosaurs, dominating the skies 150 million years ago. Although they reigned absolute above ground, their origin still remained hazy – now, it is known that these colossal wings are the evolution of a small terrestrial biped, the lagerpetid.
The fossil record of pterosaurs is full of gaps not yet filled – Caelestiventus hanseni, their oldest known ancestor, dates back 220 million years and already exhibited all the requirements for [...]
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Why do the rays split and flash? Details
Publicado em 10 dezembro 2020Why do the rays split and flash? It seems like a question asked by a child, but this is the subject of a study by a team from the National Institute for Space Research (Inpe), with the collaboration of researchers from the USA, England and South Africa, now published in the journal Scientific Reports. To understand how lightning is formed, Inpe’s Atmospheric Electricity Group (Elat) recorded images of slow-motion rays (a process called super slow motion), capturing the exact moment when [...]ver notícia -
Plastic that neutralizes the coronavirus
Publicado em 24 novembro 2020A new plastic film developed by a Brazilian company can inactivate the Coronavirus (SARS-CoV-2) on contact. Created by Nanox, financially supported by the FAPESP Innovative Research in Small Business Program and marketed by Alpfilm, the material has common plastic characteristics, but its composition has silver and silica microparticles, capable of minimizing the risk of contamination by plastic packaging. Contamination by the new Coronavirus through contact with surfaces is one of the main [...]ver notícia