Cell phones have changed the way people live, work, and communicate with each other. Since the first handheld phone was created in 1973, cell phones have only increased in popularity. How Do Cel
Among recent concerns about the use of nonrenewable fuels such as oil and coal, scientists have been trying to discover alternative ways of making energy and electricity available. Sunlight is a free
Though nuclear energy provides much more power than fossils fuels like coal, its use is hotly debated because of the potential for radiation seeping into surrounding areas. Still, it is widely used a
