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Electronic components used to make a simple water detector: battery, resistor, transistor, water sensor and piezoelectric buzzer for audible alert A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage.
The 1540 drought in Europe was a climatic event in Europe. In various palaeoclimatic analyses the temperature and precipitation regimes were reconstructed and compared to present-day conditions. On the basis of historical records Wetter et al. (2014) [ 1 ] derived that during an eleven-month period there was little rain in Europe , possibly ...