

Episode 1029: Greatest American Inventions — The Smartphone
On January 9, 2007, Steve Jobs walked onstage and declared three "revolutionary" products were actually one: the iPhone. Newt closes his 15-part series with the invention that fused the telephone, the transistor, the internet, GPS, and the camera into a single device now carried by six billion peop…

Episode 1028: Greatest American Inventions — The Internet Search Engine
By the mid-1990s, the web was drowning in pages and starving for a way to find anything useful. Newt tells how two Stanford PhD students, Larry Page and Sergey Brin, had a better idea: rank pages by how the web itself linked to them. Their algorithm, PageRank, became Google—incorporated in a Menlo …

Episode 1027: Greatest American Inventions — The MRI Scanner
For most of human history, seeing inside a living body meant surgery. Newt tells how Dr. Raymond Damadian and physicist Paul Lauterbur turned 1940s nuclear magnetic resonance research into the MRI scanner—a machine that images soft tissue in astonishing detail without radiation or a single incision…

Episode 1026: Greatest American Inventions — The Mobile Phone
On a Manhattan sidewalk in 1973, Motorola engineer Martin Cooper made the first handheld cellular call—to his rival at Bell Labs, just to say Motorola got there first. Newt traces the mobile phone from a $3,995 status symbol to a global phenomenon with more subscriptions than people on Earth. Beyon…

Episode 1025: Greatest American Inventions — GPS
Twelve thousand five hundred miles above Earth, 31 satellites quietly guide nearly every navigation app on the planet. Newt tells how GPS, developed by the Department of Defense as a military tool, became a free gift to humanity after President Reagan opened it to civilian use following the 1983 Ko…

Episode 1024: Greatest American Inventions — The Nuclear Reactor
Beneath a football stadium at the University of Chicago on December 2, 1942, Enrico Fermi's team achieved the first self-sustaining nuclear chain reaction in history—producing just half a watt of power but proving a concept that would reshape the world. Newt traces the Manhattan Project's dual lega…

Episode 1023: Greatest American Inventions — The Moving Assembly Line
Henry Ford didn't invent the automobile—he invented a way to make it affordable. Newt examines how Ford's 1913 moving assembly line cut Model T production time from 12.5 hours to 93 minutes, and how Ford's controversial $5-a-day wage turned his own workers into customers, helping create the America…

Episode 1022: Greatest American Inventions — The Personal Computer
For thirty years, a computer was something only governments and corporations could own—an entire room of machinery. Newt tells how that changed in 1975, when a $439 kit computer on the cover of Popular Electronics inspired a Harvard student named Bill Gates and an HP engineer named Steve Wozniak to…

Episode 1021: Greatest American Inventions — The Internet
On the night of October 29, 1969, a UCLA student typed two letters into a Stanford-bound terminal before the system crashed—and the internet was born. Newt traces ARPANET's Cold War origins as a decentralized network built to survive nuclear attack, through Vint Cerf and Bob Kahn's TCP/IP protocol,…

Episode 1020: Greatest American Inventions — The Polio Vaccine
Before 1955, polio closed swimming pools, filled hospital wards with iron lungs, and terrified American parents every summer. Newt tells the story of Dr. Jonas Salk, who defied scientific consensus with a killed-virus vaccine, tested it on 1.8 million children in the largest clinical trial in Ameri…