https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Exactly 30 years ago, I was pondering a graph of primate group sizes plotted against the size of their brains: the larger the brain, the larger the group size. I was curious to know what group size this relationship might predict for humans. https://phys.org/news/2021-05-theory-humans-friendships-withstood-years.html Social Sciences Thu, 13 May 2021 11:35:17 EDT news540124514 Ambient air quality monitoring data comprise the most important source for public awareness of air quality, and are widely used in many research fields, such as improving air quality forecasting and the analysis of haze episodes. However, there are outliers among such monitoring data, due to instrument malfunctions, the influence of harsh environments, and the limitation of measuring methods. https://phys.org/news/2018-10-method-quickly-outliers-air-quality.html Earth Sciences Tue, 30 Oct 2018 07:15:50 EDT news460102546 Grassed waterways are placed in agricultural fields where runoff water tends to concentrate because they can substantially reduce soil erosion. Mapping techniques that help identify where erosion channels will likely form could help farmers and conservation professionals do a better job of designing and locating grassed waterways in agricultural fields. https://phys.org/news/2009-08-gps-soil-erosion-pathways.html Environment Thu, 13 Aug 2009 14:13:17 EDT news169391574