Optical telescope
The telescope is more a discovery of optical craftsmen than an invention of a scientist. The lens and the properties of refracting and reflecting light had been known since antiquity and theory on how they worked were developed by ancient Greek philosophers, preserved and expanded on in the medieval Islamic world, and had reached a significantly advanced state by the time of the telescope's invention in early modern Europe. But the most significant step cited in the invention of the telescope was the development of lens manufacture for spectacles, first in Venice and Florence in the thirteenth century, and later in the spectacle making centers in both the Netherlands and Germany. It is in the Netherlands in 1608 where the first recorded optical telescopes (refracting telescopes) appeared. The invention is credited to the spectacle makers Hans Lippershey and Zacharias Janssen in Middelburg, and the instrument-maker and optician Jacob Metius of Alkmaar.
Poland
In the 19th century, throughout partitioned Poland, numerous amateur inventors, such as Kazimierz Prószyński, were eager to construct a film projector. In 1894, Prószyński was successful in creating a Pleograph, one of the first cameras in the world. The invention, which took photographs and projected pictures, was built before the Lumière brothers lodged their patent. He also patented an Aeroscope, the first successful hand-held operated film camera. In 1897, Jan Szczepanik, obtained a British patent for his Telectroscope. This prototype of television could easily transmit image and sound, thus allowing a live remote view. Following the invention of appropriate apparatus and technological development in the upcoming years, his then-impossible concept became reality.