fairhope art festival But you won't be capable of know if your productions are gaining in productivity unless you keep regular records. You'll get the feedback you'll want to see how your entire management effort is doing out there records. With these data you can actually plan and apply corrective steps for overcoming problems and you'll be able to increase effort that's reducing. The discovery that electromagnetic waves are capable of transmitting information sparked the invention of radio. The technology scaled like the old inventions in the telegraph as well as the telephone. According to some researchers, the amplitude modulation technique originated in the experimental and theoretical work of Leblanc, in 1886, Mayer (1875) and Rayleigh (1894). For example, the very first successful attempt to transmit audio signals over telephone lines happened inside mid-1870s and this may be called one of the first transmissions happening by using some type of amplitude modulation.