TED Tech

Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? This week we are revisiting a talk by electrical engineer Ali Hajimiri, where he explains the principles behind wireless energy transfer and shares his far-out vision for launching flexible solar panels into space in order to collect sunlight, convert it to electrical power and then beam it down to Earth. Learn how this technology could power everything — and light up our world from space.

We don't have to sacrifice our freedom for the sake of technological progress, says social technologist Divya Siddarth. She shares how a group of people helped retrain one of the world's most powerful AI models on a constitution they wrote — and offers a vision of technology that aligns with the principles of democracy, rather than conflicting with them.

Is cybercrime getting easier? Cybersecurity expert Ryan Pullen dives into his work investigating massive digital breaches and testing security blindspots — which led to him gaining access to the software controls of a well-known building in London. Learn more about how cybercriminals exploit human vulnerabilities and hear the latest on how to recognize and protect yourself from scams.

Is AI about to change everything? Whether you’re optimistic, pessimistic, or somewhere in between about the power of artificial intelligence, join host Bilawal Sidhu and the world's leading experts, artists, journalists, and beyond, as they guide you through this fast-moving world on TED’s latest podcast, The TED AI Show. Find The TED AI Show wherever you get your podcasts.

A game-changing solution to the global food crisis could come from something so tiny you can't see it with the naked eye. Nanomaterials chemist Christy Haynes describes her team's work designing nanoparticles that could protect plants from disease and crop loss, helping farmers reap abundant harvests and grow food that will make its way to markets and dinner tables. After the talk, Sherrell shares thoughts on the possibilities of precision agriculture.