US-based Raptor Maps has published its latest annual report on global PV system underperformance. The solar lifecycle management software specialist performed aerial inspections across 24.5 GW of ...

A controversial technique has produced detailed maps of the magnetic fields in colossal galaxy clusters. If confirmed, the approach could be used to reveal where cosmic magnetic fields come from. By ...

After the Republican midterm win in 1994 Time‘s cover showed a gigantic elephant stomping on a donkey. After the Democrats’ midterm win in 2006 the magazine ran a chaste Venn diagram and a headline ...

Researchers at the University of Isfahan in Iran claim to have improved the precision of digital elevation models (DEMs) in creating high-resolution annual solar energy potential maps. DEMs are 3D ...

Maps of world coverage, chiefly from the National Geographic magazine, but some from other publishers, including star charts, road maps, city maps and guidebooks. Each vol. has index inside front ...