Badbury Rings in a northwest direction (visible today as a thin strip of woodland) heading for the Roman fort at Hod Hill. At an early stage, this road formed a junction with Ackling Dyke, a Roman road which headed northeast to Old Sarum ("Sorviodunum"). Another road ran across country in a north by northwest direction towards Bath ("Aquae Sulis")., and another ran south to a small port in Poole Harbour ("Moriconium", modern Hamworthy). The final road (still used as a modern trackway on the west side of Badbury Rings) ran in a southwest direction through the settlement of "Vindocladia" heading towards Dorchester
Geothermal energy a renewable energy source like geothermal. But as a result of government assisted research and industry experience, the cost of generating geothermal power has decreased by 25% over the past two decades. In 2001, geothermal energy costs between two and ten US cents per kWh. Hot springs have been used for bathing at least since Paleolithic times. The oldest known spa is a stone pool on China's Lisan mountain built in the Qin Dynasty in the 3rd century BC, at the same site where the Huaqing Chi palace was later built. In the first century AD, Romans conquered "Aquae Sulis",