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Tag Archives: Penn State University

Less ice, more seawater

By Stephen Ornes / December 20, 2012

Meltwater on the Greenland ice sheet carved this canyon.

Credit: Ian Joughin

Shrinking ice sheets contribute to rising sea levels, large-scale study confirms

Posted in Earth | Tagged Andrew Shepherd, Antarctica, Arctic, climate change, earth science, England, environmental science, getinvolved, glacier, global warming, Greenland, ice sheet, icebergs, Penn State University, satellites, sea level rise, snow, topstories, University of Leeds

Helium: Not so super after all

By Stephen Ornes / November 2, 2012

As a gas, helium glows yellow-pink when an electric current is added. Scientists recently reported that they’d made a mistake in a 2004 study that found the element was a supersolid. Turns out helium as a solid isn’t so super. Caption: Pslawinski

An exciting discovery in physics turns out to be merely a case of mistaken identity

Posted in Physics | Tagged atoms, École Normal Supérieure, energy, Eunseong Kim, friction, getinvolved, helium, materials science, matter, Moses Chan, Penn State University, physics, Sébastien Balibar, superfluids, supersolids, topstories