Discovery and exploration of the Solar System Domenico Cassini later discovered four more moons of Saturn and the Cassini division in Saturn's rings. Edmond Halley realised in 1705 that repeated sightings of a comet were recording the same object, returning regularly once every 75–76 years. This was the first evidence that anything other than the planets orbited the Sun. Around this time (1704), the term "Solar System" first appeared in English. In 1781, William Herschel was looking for binary stars in the constellation of Taurus when he observed what he thought was a new comet. Its orbit revealed that it was a new planet, Uranus, the first
Solar Road and Soil Regeneration Hybrid Energy System greater the rate of heat transfer. Therefore, the most efficient system will be one that consists of an extensive network of smaller diameter pipes. This process essentially treats the solar road as a heat source and the soil as a heat sink. SRSRHES technology can be applied to most types of roadway as well as most environmental conditions, however, the operation efficiency is dependent on several factors. Solar radiation hits the equatorial regions of the Earth more directly than polar regions due to the spherical nature of the planet. An SRSRHES installed in polar regions will convert less solar energy