 Complete the following phrase:  Sturdza also continued to work in designing flying machines with cardboard wings which he infamously tested by peasants living on his estates, who suffered broken limbs as a result. An airplane of his own design was assigned to be driven by one poor Gypsy, who got killed on his first attempt. In 1891, he was still passionate about flying, and theorized about the coming age of motorized aircraft. Sturdzas theories and experiments extended to the opera, seeing him as a critic of Richard Wagners dissot and deafening music. By 1879, he had authored several fantasias, with motifs from Gaetano Donizetti and Gioachino Rossini. As reported by Lisbons Diário Illustrado, the works were simply impossible to perform and cannot be found for sale anywhere in Europe. Sturdza did however play chamber music with his Junimist friend Alexandru Grigore Suțu, and invented an instrument that was reportedly used by the Paris Conservatory. This is probably the violin-harp, built for Sturdza by Thomas Zach. Exhibited at the 