Flying wings are aircraft without a fuselage and tail assembly. They stand out from conventional aircraft due to their optimised aerodynamics and significantly lower fuel consumption. But these special aircraft also have downsides. They are difficult to steer and...
Alpha-aluminium oxide-based gemstones: Development of a chemical synthesis process prompted by current mining conditions
Mining gemstones damages the environment and often occurs under dehumanising conditions. Christian Schärf, Paul Rathke and Friedrich Wanierke hypothesised that, because rubies and sapphires are a mixture of aluminium oxide and certain metals, it might be possible to produce...
Drone detection system: Detection, tracking and classification of potentially dangerous flight objects for multicopter defence
Small civilian drones are very popular right now – whether as toys or professional tools for recording videos. However, this also increases the risk of misuse, such as conducting espionage or even for carrying out terrorist attacks. In response,...