The Korn telephotographic apparatus is based on the principle of an apparatus devised by Shelford Bidwell in 1881 for the electrical transmission of pictures to a distance, in which use was made of the change in electrical resistance which selenium undergoes when acted upon by light.
In the Korn apparatus the light from a Nernst electric lamp is concentrated to a point by means of a lens on the original picture, which is wound on a glass cylinder in the shape of a transparent photographic film.
Many of his predecessors, too, were men of different fibre from the ordinary Oriental sovereign, while his son Chulalong Korn, who succeeded him in 1868, showed himself an administrator of the highest capacity.
8,334 Kaiser Tauern (Kals to Uttendorf), foot path 8,242 Hohe or Korn Tauern (Mallnitz to Gastein), bridle path over, railway tunnel beneath 8,081 Niedere or Mallnitzer Tauern (Mallnitz to Gastein), bridle path 7,920 Fuscherthorl (Ferleiten to the Seidlwinkel Glen), foot path 7,891 Lappacherjoch (Lappach to the Ahrn Valley), foot path (Z).
A funicular railway runs from the Korn-Markt up to the level of the castle and thence to the Molkenkur (700 ft.