Support CleanTechnica’s work through a Substack subscription or on Stripe. By John Perlin, author of Let It Shine: The 6000-Year Story of Solar Energy. Photo’s courtesy of AT&T archive. Sixty years ago on April 25, 1954, Bell Laboratories demonstrated to the world one of the most significant breakthroughs ever recorded in the … Continue reading Celebrating The 60th Anniversary Of The First Practical Solar Cell — From Powering Ferris Wheels To Cities, & Beyond