Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? Electrical engineer Ali Hajimiri 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.

How wireless energy from space could power everything | Ali Hajimiri

TED is a nonprofit devoted to ideas worth spreading. On this video feed, you'll find TED Talks to inspire, intrigue and stir the imagination from some of the world's leading thinkers and doers, speaking from the stage at TED conferences, TEDx events and partner events around the world. This podcast is also available in SD video and audio-only formats.

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"Storytelling is one of the most powerful marketing and leadership tools there is," says communications expert Kelly D. Parker. She explains how stories make proposals of all kinds more memorable — and shows how you can craft a compelling narrative to connect, persuade and drive meaningful action.

The art of persuasive storytelling | Kelly D. Parker

Louise Mabulo grew up on seemingly strange farming tips from her parents and grandparents — like planting crops during a full moon or burying a rock beneath them. Now a farmer and climate activist herself, she sees how these practical nuggets of wisdom actually have scientific merit. Learn how she's merging traditional knowledge with modern science to help farmers (and the world) adapt to a changing climate.

A climate solution? The wisdom passed down through generations | Louise Mabulo

When it comes to artificial intelligence, what are we actually creating? Even those closest to its development are struggling to describe exactly where things are headed, says Microsoft AI CEO Mustafa Suleyman, one of the primary architects of the AI models many of us use today. He offers an honest and compelling new vision for the future of AI, proposing an unignorable metaphor — a new digital species — to focus attention on this extraordinary moment.

AI is turning into something totally new | Mustafa Suleyman

The convergence of AI and robotics will unlock a wonderful new world of possibilities in everyday life, says robotics and AI pioneer Daniela Rus. Diving into the way machines think, she reveals how "liquid networks" — a revolutionary class of AI that mimics the neural processes of simple organisms — could help intelligent machines process information more efficiently and give rise to "physical intelligence" that will enable AI to operate beyond digital confines and engage dynamically in the real world.

How AI will step off the screen and into the real world | Daniela Rus

What does it mean to be an active citizen? It's about more than just voting and paying taxes, says social entrepreneur Gabriel Marmentini. He explains why we can't rely on the state alone to solve all our problems — and presents the four key ingredients for anyone to become a change-maker and engage in solving public issues.

How to be an active citizen and spark change | Gabriel Marmentini

TED Talks Daily (HD video)

How wireless energy from space could power everything | Ali Hajimiri

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