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Science
“#No single solution helps all students complete MOOCs” Credit: CC0 Public Domain In one of the largest educational field experiments ever conducted, a team co-led by a Cornell researcher found that promising interventions to help students complete online courses were not effective on a massive scale—suggesting that targeted solutions are needed to help students in…
“#Scientists discover three-dimensional structure in smaller water droplet” Credit: CC0 Public Domain Water and its interactions with other substances are essential to human life. However, understanding the structure of liquid water and its hydrogen-bonding networks has been a challenge. According to previous studies, all oxygen atoms in water trimers, tetramers, and pentamers with cyclic minimum-energy…
“#Spectacular bird’s-eye view? Hummingbirds see diverse colors humans can only imagine” While humans have three color cones in the retina sensitive to red, green and blue light, birds have a fourth color cone that can detect ultraviolet light. A research team led by Princeton’s Mary Caswell Stoddard trained wild hummingbirds, like this male broad-tailed hummingbird,…
“#Carbon emission from permafrost soils underestimated by 14%” Credit: Pixabay/CC0 Public Domain Picture 500 million cars stacked in rows. That’s how much carbon—about 1,000 petagrams, or one billion metric tons—is locked away in Arctic permafrost. Currently, scientists estimate that 5-15% of the carbon stored in surface permafrost soils could be emitted as the greenhouse gas…
“#New analysis of human portraits reveals shift in culture, cognition” The portrait on the left (Adrian Brouwer, 1630) is an example of a composition with the sitter centered. On the right, a portrait by Pierre Auguste Renoir (1905) shows the forward bias, with more free space in front of the sitter than behind her. The…
“#COVID-19 pandemic could decimate outdoor environmental, science education programs” The coronavirus pandemic is threatening the existence of many outdoor education programs that offer a unique experience to many low-income students and students of color. Credit: UC Berkeley photo, Lawrence Hall of Science The COVID-19 pandemic threatens the survival of organizations nationwide that provide critical outdoor…
“#The many lifetimes of plastics” Marine chemist Collin Ward working in his lab. Credit: Jayne Doucette, © Woods Hole Oceanographic Institution Many of us have seen informational posters at parks or aquariums specifying how long plastics bags, bottles, and other products last in the environment. They’re a good reminder to not litter, but where does…
“#Researchers create first room-temp ‘magnon switch’ with industrially useful properties” This artist’s conception shows the difference between a magnon’s “open” and “closed” states. Exciting the magnetic spin (red arrow) of the top electron sends a wave of spin changes traveling downward through the chain, creating a voltage that can be read out at the bottom….
“#New fossil discovery shows 50 million-year-old Canada-Australia connection” The new fossil lacewing species from British Columbia, Canada, with an almost complete wing. Credit: The Canadian Entomologist. Used by permission. The discovery of a tiny insect fossil is unearthing big questions about the global movement of animals and the connection to changes in climate and shifting…
“#NASA follows Tropical Storm Nuri’s path” NASA’s Terra satellite provided a visible image to forecasters of Tropical Storm Nuri as it approached the southeastern coast of China on Saturday, June 13. Credit: NASA Worldview An animation of four days of imagery from NASA’s Terra satellite showed the progression and landfall of Tropical Storm Nuri. At…