<span>U.S analog broadcasts cease ll digitak broadcasting begins in U.S.</span>John Logie BairdScottish scientist, engineer, innovator, and inventor of the world's first televisionBaird's scanning disk produced an image of 30 lines resolution, just enough to discern a human face, from a double spiral of Photographic lenses.How did John Logie create his first TVA human faceWhat was the first thing shown on TVIt had better quality, more channels, frees up room for Digital Emergency responders, and better signalsDigital is better than analog becauseOver the airWhat type of transmission is Analogcable and satellite TVWhat types of broadcast were still safe after the analog to digital conversionMany analog jobs disappear and new digital jobs are createdWhat happened to job opportunities after the conversion?BroadcastMeans that the signal travels through the air from one antenna to another antennaCommercial Broadcast TelevisionProgramming free to consumerCommercial Broadcast TelevisionProgramming availability are limited only by strength of broadcast signalCommercial Broadcast Television"For profit" business, revenue generated by sale of advertising timeAd/spotTelevision advertisement for a product or serviceThe purchase of those programsAds that run during programs serve to pay forthe viewing audience for 2014 was 111.5 million people worldwide.30 second bowl ads cost over 1 million dollars to air becauseBased on the number of potential viewers<span>What is the biggest factor in determining how much a network or station will charge to run a company's ad</span>
There are many reasons we need to protect wilderness: Wilderness protects watersheds that provide clean drinking water to surrounding communities. Wilderness filters and cleans the air we breathe. Many animals we love call wilderness their home.
