SCIENCE IN THE NEWS WEEKLY
Ancient Past: A New Meaning for Stonehenge?
British archaeologists said last week that Stonehenge, the prehistoric stone monument, appears to have served as a cemetery for as long as 500 years and may have been a burial site for a single important family, perhaps a royal dynasty.
In other news, researchers said a massive release of methane 635 million year ago may have caused a jump in temperature that triggered rapid melting of global glaciation on earth. The sudden burst of methane may have occurred when ice sheets that stretched all the way to the equator broke apart.
Scientists say a 380-million-year-old fossil fish with an embryo still attached to its umbilical cord has provided the oldest example of a live birth. The specimen was found in Australia. Until now, scientists thought creatures from that time period reproduced by laying eggs.
And speaking of fossils, New Jersey sediment known as glauconite has yielded some curious specimens of late. One in particular, of a sabertooth salmon, suggests that the dinosaur-era fish may have survived longer than anyone thought, based on the geologic record.
And, finally, divers reported finding the ruins of an ancient temple in the Nile River that was built in honor of the Egyptian fertility god Khnum. Because the river has shifted course over the centuries, archaeologists said they expect to make other such finds through underwater excavations.
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PODCAST & VIDEO: Engineering Around Extreme Events
Extreme events, such as super floods and hurricanes, are becoming more common, so civil engineers are trying to adapt civil infrastructure such as bridges to these unpredictable and sometimes devastating meteorological events. Engineer Ana Barros discusses how engineering can prepare us for extreme weather events, but also how changing climate and population conditions can affect the ability of infrastructure to hold up over time.
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