The method makes it unnecessary to store or transport hydrogen – two major challenges in creating a hydrogen economy, said Jerry Woodall, a distinguished professor of electrical and computer engineering at Purdue who invented the process. “The hydrogen is generated on demand, so you only produce as much as you need when you need it,” [...]

Human activities have dramatically increased the rates of species and population extinction. This directly undermines the richness and diversity of life on Earth and indirectly threatens human welfare, e.g., through negative effects of species loss on ecosystem services. The causes of biodiversity loss are relatively well understood, with habitat destruction, climate change, monocropping, resource extraction, [...]

Ekranoplan vehicles benefit from the peculiarities of aerodynamics close to a surface.  The proximity of the surface both compresses the air under the wing, giving it more lift, and reduces the drag from the wing, making it more efficient.  This effect increases as the surface gets closer and so is the basis for self-stabilisation in [...]

Stereolithography is the most widely used rapid prototyping technology. Stereolithography builds plastic parts or objects a layer at a time by tracing a laser beam on the surface of a vat of liquid photopolymer. This class of materials, originally developed for the printing and packaging industries, quickly solidifies wherever the laser beam strikes the surface [...]

The latest thesis, advanced by Hava Siegelmann at the Technion Institute of Technology,in Haifa Israel,claims that some computational problems can only be solved by analog neural networks. Since neural networks are essentially analog computers, the work suggests, on a theoretical level, that analog operations are inherently more powerful than digital. Based on her work, Siegelmann [...]