Calvin College professor Larry Molnar and his students along with colleagues from Apache Point Observatory (Karen Kinemuchi) and the University of Wyoming (Henry Kobulnicky) are predicting a change to the night sky that wil
A key glacier in Antarctica is breaking apart from the inside out, suggesting that the ocean is weakening ice on the edges of the continent.
The Pine Island Glacier, part of the ice shelf that bounds the West Antarctic Ice Sheet, is one of two glaciers that researchers believe are most likely to undergo rapid retreat, bringing more ice from the interior of the ice sheet to the ocean, where its melting would flood coastlines around the world.
A nearly 225-square-mile iceberg broke off from the glacier in 2015, but it wasn't until Ohio State University researchers were testing some new image-processing software that they noticed something strange in satellite images taken before the event.
In the images, they saw evidence that a rift formed at the very base of the ice shelf nearly 20 miles inland in 2013. The rift propagated upward over two years, until it broke through the ice surface and set the iceberg adrift over 12 days in late July and early August 2015. They report their discovery in the journal Geophysical Research Letters.
"It's generally accepted that it's no longer a question of whether the West Antarctic Ice Sheet will melt, it's a question of when," said study leader Ian Howat, associate professor of earth sciences at Ohio State. "This kind of rifting behavior provides another mechanism for rapid retreat of these glaciers, adding to the probability that we may see significant collapse of West Antarctica in our lifetimes."
OK, he was right: When in Boston, I taught next to a Geometry teacher who would later go on to become Teacher of the Year. Lining the walls of his high school Geometry classroom, from floor to ceiling, were vocabulary words with drawings and examples. At the time I thought it was a bit extreme. I mean, aren't these kids in high school?
Via Cindy Riley Klages, Mark E. Deschaine, PhD
Welcome to a series that brings STEM, STEAM, and Maker Space together with Project Based Learning and proper technology integration in the classroom. You will discover around one hundred resources in this series along with some great ideas for finding student success. Before reading, please take a moment to subscribe by email or RSS and also give me a…
“ The iPad has found its way into hospitals, retail stores and homes across the nation, but it’s also making a big splash in the classroom, even with some of the best online colleges. With a great selection of apps focused on everything from word processing to keeping in touch with classmates, the tablet computer can be an invaluable tool for learning — no matter your age. Online science students haven’t been left out, of course, and there are a wide range of applications offering help with chemistry, biology, astronomy and even the math that comes along with certain fields. If you’re a college student looking to supplement your science studies, these apps are some of the best for learning, sharing, researching and just plain having fun.”
Via John Evans, Yashy Tohsaku, Bonnie Bracey Sutton, Suvi Salo, Bhushan THAPLIYAL
Bioengineering professor Kevin Kit Parker has created a robotic stingray imbued with live heart cells that have been programmed to respond to light, allowing them to steer the stingray bot in different directions. The big thing about this is that it can lead to a massive range of applications including the creator's ultimate goal: creating a living, pumping artificial heart.
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