Researchers said that 100 million years ago, Africa's Sahara was the "most dangerous place" in the history of Earth, where "a human time- traveller wouldn't last very long". Reviewing fossils from south-eastern Morocco, they found three of the largest known predatory dinosaurs roamed the area. Among them was the 26-foot- tall sabre-toothed Carcharodontosaurus, which had 8-inch-long serrated teeth.
NASA has developed VITAL (Ventilator Intervention Technology Accessible Locally), a high-pressure ventilator in 37 days to treat COVID-19 patients. The device is composed of far fewer parts, many of which are available to potential manufacturers, NASA said. "Its flexible design means it can be modified for use in hospitals being set up in hotels and other high- capacity facilities," NASA added.
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