Newt's World

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Episode 1029: Greatest American Inventions — The Smartphone

August 10, 2026

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 seri...

Episode 1028: Greatest American Inventions — The Internet Search Engine

August 09, 2026

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 in...

Episode 1027: Greatest American Inventions — The MRI Scanner

August 08, 2026

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, beca...