Friday, September 29, 2017

New Developments September 2017

Is this a good time to talk about climate change? Experiencing extreme weather events can make people modestly more likely to support policy measures to help communities adapt to climate change. The effect on people’s attitudes is not only small but only lasts about a month. But the world measured in the study may no longer be the one we are living in. The researchers only looked at how the frequency of extreme weather affects attitudes, not the severity. Yet the most extreme weather events may affect people’s psychology over a longer period.

A Washable, Stretchable Solar Cell For Clothes and Awnings Engineers have made a new solar cell that works well even after being washed. The stretchable, water-resistant cells could be used to make clothes that can power wearable devices and sensors. They could also lead to power-generating awnings, shades, and tents. Thin, flexible solar cells made of organic polymers are less efficient, but are easy and cheap to manufacture. This has made them attractive for large-area, flexible devices, especially as scientists have in recent years improved their efficiency and longevity; organic solar cells can degrade when exposed to water and oxygen. They went from efficiencies of 2 percent in 2007 to over 8 percent in 2016.