Name the Artist: At The Hop?

Questions

In December of 1957 -- Shippingport, Pennsylvania became the site of the first full-scale ______ power plant in the U.S?

In July of 1955 - Arco, Idaho, with a population of 1,000, became the first U.S. town powered by nuclear energy. The town's energy was supplied by an experimental boiling-water reactor called the?

Half a byte is called a?

the _____, the pulley, the inclined plane, the screw, and the wheel and axle?

the lever, the _____, the inclined plane, the screw, and the wheel and axle?