From the airplane to the DNA fingerprint, science, history,and pop culture come under the spotlight in this thrillingchronicle of the 20th Century's greatest inventions. Go on adecade-by-decade voyage of discovery through life-changinginventions, like the radio that made the world smaller; themachine gun that made it more dangerous; or the parkingmeter that made it more expensive. As seen on the DiscoveryChannel! #1) The 1900s #2) The 1910s #3) The 1920s #4) The1930s #5) The 1940s #6) The 1950s #7) The 1960s #8) The1970s #9) The 1980s #10 The 1990s Each episode isapproximately 45 minutes. The entire series is over 7 hoursof fascinating inventions.