Newt's World

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 people—three-quarters of humanity. From the App Store's trillion-dollar economy to the industries it upended outright, the smartphone is where every earlier episode converges. Newt closes the series by reflecting on 250 years of American inventors who were told it couldn't be done—and built it anyway.See omnystudio.com/listener for privacy information.

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 Park garage with a $100,000 check written to a company that didn't legally exist yet. From 10,000 daily searches to 8.5 billion today, this episode traces how an intellectual question about information became a two-trillion-dollar company, and a case study in curiosity preceding value.See omnystudio.com/listener for privacy information.

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. From Damadian's hand-built "Indomitable" scanner to today's 40 million annual U.S. procedures, this episode traces how basic physics research, conducted with no medical purpose in mind, became one of medicine's most powerful diagnostic tools—and examines the controversial Nobel Prize snub that still stings decades later.See omnystudio.com/listener for privacy information.

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. Beyond the American story, this episode spotlights the developing world, where mobile networks leapfrogged landline infrastructure entirely—connecting fishermen in India to real-time market prices and bringing mobile banking to millions of unbanked Kenyans through M-Pesa. It's a story of connection reaching where wires never could.See omnystudio.com/listener for privacy information.

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 Korean Air Lines tragedy. From synchronizing financial markets to guiding precision agriculture, GPS now contributes over $1.5 trillion annually to the U.S. economy alone. It's a case study in the right relationship between government-funded infrastructure and private-sector innovation—and a daily demonstration of Einstein's physics.See omnystudio.com/listener for privacy information.