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Many layers: knife sharpness and cutting technique greatly affect the speed of droplets that are created when cutting an onion. (Courtesy: Zixuan Wu and Sunghwan “Sunny” Jung at Cornell University) ...

Hanging by a thread: Wasp spiders, Argiope bruennichi , are known to incorporate so-called “stabilimenta” into their web structure, but the function of these “extra touches” has remained unknown ...

Abstract: This paper describes an iterative learning identification law for singular nonlinear systems based on vector plot analysis. Firstly, a new recognition learning law based on vector plot ...

Dipartimento di Chimica, Università degli Studi di Milano, Via Camillo Golgi 19, 20133 Milano, Italy ...