Radiation. 1  Radiation is the emission of energy as waves or particles or rays. 2  Radiation does not require a medium to transfer energy. 3  Radiant energy is either reflected or absorbed by matter. 4  Energy that is absorbed increases the kinetic energy of the object. 5  This increases the temperature of the object.
The Pennsylvania Turnpike could also be considered one of the first Interstate Highways. On October 1, 1940, 162 miles (261 km) of the highway now designated Iâ70 and Iâ76 opened between Irwin and Carlisle. The Commonwealth of Pennsylvania refers to the turnpike as the Granddaddy of the Pikes.
THE DWIGHT D. EISENHOWER INTERSTATE HIGHWAY SYSTEM. The beginnings of Interstate Highway System, as we know it today, can be traced to the summer of 1919, when LTC Dwight D. Eisenhower served as an observer to the first transcontinental convoy. Testing the endurance of vehicles and roads, the convoy took two months to travel from Washington DC to San Francisco.