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R & D

Shielded dino

Dinosaurs named Ankylosaurs had a weave of fibres resembling today's bulletproof fabrics. Researchers at the University of Bonn, Germany, have found evidence that these massive herbivores grew up to 10 metres in length during the late Jurassic and Cretaceous periods. They had coin-sized plates which fully covered their back, neck, head and even protected their eyes for armoured living, improving defence against predators.

Perfect clock

British physicists are introducing a clock that promises not to lose or gain one second even in 30 million years, reports Science. Inside the clock, extremely cold atoms are regulated by ultra-quick lasers. This marks time at much higher frequencies.

Early arrival

Humans inhabited North America long before the last ice age, according to radiocarbon tests of plant remains where artifacts were unearthed along the Savannah River in Allendale County. The University of South Carolina archaeologist, Dr Albert Goodyear, says the findings indicate that the sediments containing these artifacts are at least 50,000 years old.

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