The key insight behind the device is that sound travels at different speeds in different gases. In helium, sound moves much ...

Dutch startup SolarDuck has developed a triangular structure for floating PV that resembles an offshore oil platform. CEO Koen Burgers told pv magazine that it keeps panels more than 3 meters above ...

Researchers at Nanjing University have developed a novel helium-detecting device, drawing inspiration from the traditional ...

Authorities in Puttur have removed an unauthorised triangular structure, or katté, that had stood on a public road near ...

The outline of my presentation is as follows: questions, trade structure in East Asian countries, hypothesis, quality of trade goods in East Asian countries, triangular trade structure (TTS), and ...