Geocentric model coelestium" ("On the Revolutions of the Heavenly Spheres"), which posited that the Earth and the other planets instead revolved around the Sun. The geocentric system was still held for many years afterwards, as at the time the Copernican system did not offer better predictions than the geocentric system, and it posed problems for both natural philosophy and scripture. The Copernican system was no more accurate than Ptolemy's system, because it still used circular orbits. This was not altered until Johannes Kepler postulated that they were elliptical (Kepler's first law of planetary motion). With the invention of the telescope in 1609,
Rock carvings in Central Norway horse pulling the sun across the sky during the day, and the boat bringing it back through the underworld during night-time. The hunter's rock carvings are often found in places with striking and highly visible natural features, such as below steep cliffs, by waterfalls etc. This was part of what led to the original hunting-magic-interpretation: supposedly the carvings were made in places where animals could easily be hunted. In Central Norway, these sites have a markedly different distribution than the Bronze Age carvings. Sites are found one by one, often in isolated places. The Bronze Age-sites, on the other hand,