Technology

When the concept of “Web 3.0” first emerged about a decade ago the idea was clear: Create a more user-controlled internet that lets you do everything you can now, except without servers or intermediaries to manage the flow of information. Where Web2, which emerged in the early 2000s, relies on centralized systems to store data…

Nandan Nilekani can’t stop trying to push India into the future. He started nearly 30 years ago, masterminding an ongoing experiment in technological state capacity that started with Aadhaar—the world’s largest digital identity system. Aadhaar means “foundation” in Hindi, and on that bedrock Nilekani and people working with him went on to build a sprawling…

Water shortages in Southern California made an indelible impression on Evelyn Wang ’00 when she was growing up in Los Angeles. “I was quite young, perhaps in first grade,” she says. “But I remember we weren’t allowed to turn our sprinklers on. And everyone in the neighborhood was given disinfectant tablets for the toilet and…

Few people, if any, contemplate stars—celestial or cinematic—the way Aomawa Shields does.  An astronomer and astrobiologist, Shields explores the potential habitability of planets beyond our solar system. But she is also a classically trained actor—and that’s helped shape her professional trajectory in unexpected ways.  Today, Shields is an associate professor in the Department of Physics…

Ever since nuclear fusion was discovered in the 1930s, scientists have wondered if we could somehow replicate and harness the phenomenon behind starlight—the smashing together of hydrogen atoms to form helium and a stupendous amount of clean energy. Fusing hydrogen would yield 200 million times more energy than simply burning it. Unlike nuclear fission, which…