Search

...System, yet remarkedly little is known about them. The existence of Phobos and Deimos remained hypothetical until August 1877 when Asaph Hall and American Astronomer finally found them within five days of one another. Upon discovery it became obvious why they had not been seen previously. They were both extremely small, with diameters of just ~12.4 km (Deimos) and ~22.5...

...system to lay the material/s layer-by-layer. The concepts and technologies used in additive manufacturing are not new. They started being developed in the 1980s. But it’s only since the early years of this century that they have reached a maturity that allows them to be considered as part of mainstream manufacturing. The language used to describe the technology has...

...system. He discussed his career path and work with Ann Grand, Lecturer in Astrobiology Education...‘Astrobiology’ isn’t a subject you can study at school. Can you tell me a little bit about your journey to astrobiology and how you arrived where you are now? By accident! Since childhood, I’ve been interested in in the big questions about where we come from, the...

...system, which were unexplained by the pre-space exploration theories. Multiple impact Hypothesis However, like before, floors can still be found. It was Ringwood, the founder of the earlier disproved binary formation model, who exposed the flaws in the giant impact hypothesis and attempted to reimagine the theory. He stated in his 1989 paper “Collisions by much smaller...

...system. Three-dimensional structures can be formed by adding material onto previously deposited material...FDM cannot handle overhanging structures with much success. Therefore, systems are often equipped with a second extrusion head for depositing 'sacrificial' material. This is commonly dissolved in a solvent that does not affect the properties of the build material....