adminScientists have discovered how to make the electrical wiring on top of solar cells nearly invisible to incoming light. The new design, which uses silicon nanopillars to hide the wires, could dramatically boost solar-cell efficiency.
adminIn the quest for renewable fuels, scientists are taking lessons from a humble bacterium that fills our oceans and covers moist surfaces the world over. Cyanothece 51142, a type of bacteria also called blue-green algae, produces hydrogen in robust fashion, and scientists have found that it taps into an unexpected source of energy to do so.
The transportation sector has the capacity to nearly halve its carbon dioxide emissions by 2050 and, hence, to contribute far more than previously thought to mitigate greenhouse gas emissions. Realizing this would require further efficiency improvement and, especially, promotion of public transport in cities, alongside with a large-scale shift to electric cars, concludes a recent study.
adminA detailed account has been provided by researchers of how to control the electron charge of nanoparticles of platinum, an important catalyst in fuel cells, to maximize the efficiency of the process.
Q. Dear Umbra, Olympia recently banned plastic bags, which is great. Here is my problem: Now that stores are not using plastic bags, they have removed all the plastic bag recycle bins. I looked up places to recycle plastic bags in my area, and Lowe’s was listed. I took the bags I had been saving for six months to Lowe’s and they informed me that they would take the bags, but they are not recycled. The plastic bags just are thrown in their garbage. So I am back at the beginning again, trying to find somewhere to recycle the plastic bags that I have saved. Can you help me find somewhere that I could send these formerly recyclable plastic bags? Brooke W. Olympia, Wash. A…
Katie HerzogReaders of The New York Times were treated to a deeply touching essay this week by Piers Sellers, a NASA astronaut and climate scientist who was recently diagnosed with Stage 4 pancreatic cancer. Sellers wrote: This diagnosis puts me in an interesting position. I’ve spent much of my professional life thinking about the science of climate change, which is best viewed through a multidecadal lens. At some level I was sure that, even at my present age of 60, I would live to see the most critical part of the problem, and its possible solutions, play out in my lifetime. Now that my personal horizon has been steeply foreshortened, I was forced to decide how to spend my remaining time. Was continuing to think about climate change worth the…
AENewsFuel Cells | Hydrogen Fuel | Public Transit | TransportationIn an effort to reduce China’s harmful and plentiful greenhouse gas emissions, Chinese company Sifang (a subsidiary of China South Rail Corporation) has developed the world’s first hydrogen powered tram. The tram took two years of research and development to complete, and will be powered entirely by hydrogen fuel cells. Since this is a tram […]
