Russian cosmism, also cosmism, is a philosophical and cultural movement that emerged in Russia at the turn of the 19th century, and again, at the beginning of the 20th century. At the beginning of the 20th century, there was a burst of scientific investigation into interplanetary travel, largely driven by fiction writers such as Jules Verne and H. G. Wells as well as philosophical movements like the Russian cosmism. Cosmism entailed a broad theory of natural philosophy, combining elements of religion and ethics with a history and philosophy of the origin, evolution, and future existence of the cosmos and humankind. It combined elements from both Eastern and Western philosophic traditions as well as from the Russian Orthodox Church. Cosmism was one of the influences on Proletkult, and after the October Revolution, the term came to be applied to "...the poetry of such writers as Mikhail Gerasimov and Vladimir Kirillov...: emotional paeans to physical labor, machines, and the collective of industrial workers ... organized around the image of the universal 'Proletarian', who strides forth from the earth to conquer planets and stars." This form of cosmism, along with the writings of Nikolai Fyodorov, was a strong influence on Andrei Platonov. Many ideas of the Russian cosmists were later developed by those in the transhumanist movement. Victor Skumin argues that the Culture of Health will play an important role in the creation of a human spiritual society into the Solar System. Among the major representatives of Russian cosmism was Nikolai Fyodorovich Fyodorov (1828–1903), an advocate of radical life extension by means of scientific methods, human immortality, and resurrection of dead people. In 1881, Russian revolutionary and rocket pioneer Nikolai Kibalchich proposed an idea of pulsed rocket propulsion by combustion of explosives, which was an early precursor for Project Orion. Konstantin Tsiolkovsky (1857–1935) was among the pioneers of theoretical space exploration and cosmonautics.