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YELLOWSTONE NATIONAL PARK — Yellowstone National Park geologists have reported the third eruption from the world’s largest active geyser in the past six weeks.

The National Park Service says a park visitor reported seeing a rare eruption of Steamboat Geyser on Friday.

Park geologists compared the report with seismic activity and the discharge of water and concluded the eruption probably started at 6:30 a.m.

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Researchers at the University of Carnegie Mellon University have unveiled a new “first-of-its-kind” smartwatch that can turn your arm into a touchscreen. The prototype LumiWatch projects an interactive surface area on the wearer’s arm or hand, allowing them to tap and swipe on their skin to use the watch. The prototype shows how an on-body interface might work: you swipe left to unlock the watch, and apps are then displayed along your arm. The watch can project an interface up to 40 square centimeters in size, which the researchers say is roughly 5 times bigger than the interface of a typical smart watch.

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Yellowstone National Park sits squarely over a giant, active volcano. This requires attention.

Yellowstone has been a national park since 1872, but it was only in the 1960s that scientists realized the scale of the volcano – it’s 44 miles across – and not until the 1980s did they grasp that this thing is fully alive and still threatens to erupt catastrophically. Yellowstone is capable of eruptions thousands of times more violent than the Mount St. Helens eruption of 1980. The northern Rockies would be buried in multiple feet of ash. Ash would rain on almost everyone in the United States. It’d be a bad day. Thus geologists are eager to understand what, exactly, is happening below all those volcano-fueled hot springs and geysers.

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