Open AccessHistory of Key TechnologiesFlight Controls Otto Lilienthal’s Experimental Monoplane from 1895Markus Raffel, Felix Wienke, Clemens Schwarz and Andreas DillmannMarkus Raffel https://orcid.org/0000-0002-3340-9115DLR, German Aerospace Center, 37073 Göttingen, Germany*Head Department, DLR Helicopter Aerodynamics, Institute Aerodynamics Flow Technology; also Professor, Turbomachinery Fluid...

Pastoralism is globally significant in social, environmental, and economic terms. However, it experiences crises rooted misconceptions poor interdisciplinary understanding, while being largely overlooked international sustainability forums agendas. Here, we propose a transdisciplinary research approach to understand pastoralist transitions using (1) economic, environmental dimensions, (2) diver...

A test chamber method was developed to provide a small and simple emission testing facility capable of testing construction products over a range of climatic parameters, such as temperature, ventilation rate and air velocity, that could be varied independently around typical indoor values. Volatile organic compounds (VOCs), specifically the aromatic hydrocarbons fraction, were measured using a ...

I first summarize Baltag and Smets’ contribution to this volume, and praise their work. Then I compare the anti-lexicographic plausibility update that they propose to a proposal by Aucher, as an illustration of the difference between a qualitative and a quantitive formulation of updates. I quote Spohn’s original work that is at the root of research in plausibility updates and of the notion of a...