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.
I-95 is the longest northâsouth Interstate, followed by I-75, and the sixth-longest Interstate Highway overall after I-70 (2,153 miles, 3,465 km), I-10 (2,460 miles, 3,959 km), I-40 (2,555 miles, 4,112 km), I-80 (2,899 miles, 4,665 km), and I-90 (3,099 miles, 4,987 km).