At TED U, Gever Tulley, founder of the Tinkering School, spells out 5 dangerous things you should let your kids do -- and why a little danger is good for both kids and grownups.

Designers spend their days dreaming up better products and better worlds, and you can use their thinking to re-envision your own life, says design professor Bill Burnett. He shares five tips to try, whether you're at the start of your career or contemplating your next act. Bill Burnett is the executive director of the Product Design program and an adjunct professor in Mechanical Engineering Design at Stanford. In addition, Burnett has worked at startups and Fortune 100 companies, including seven years at Apple designing award-winning notebook computers and a number of years in the toy industry designing Star Wars toys.

Bruce Feiler has a radical idea: To deal with the stress of modern family life, go agile. Inspired by agile software programming, Feiler introduces family practices which encourage flexibility, bottom-up idea flow, constant feedback and accountability. One surprising feature: Kids pick their own punishments.

In this practical talk, cybersecurity expert Nadya Bartol brings this crucial topic out into the open, lifting the shame around tech mistakes and offering creative ways to celebrate and reward good cybersecurity habits at work and beyond.

New tech spawns new anxieties, says scientist and philosopher Grady Booch, but we don't need to be afraid an all-powerful, unfeeling AI. Booch allays our worst (sci-fi induced) fears about superintelligent computers by explaining how we'll teach, not program, them to share our human values. Rather than worry about an unlikely existential threat, he urges us to consider how artificial intelligence will enhance human life.

Designer Ivan Poupyrev wants to integrate technology into everyday objects to make them more useful and fun -- like a jacket, you can use to answer phone calls or a houseplant you can play like a keyboard. In a talk and tech demo, he lays out his vision for a physical world that's more deeply connected to the internet and shows how, with a little collaboration, we can get there. Unveiled in this talk: Poupyrev announces that his newest device, Jacquard, is now publicly available for all designers to use.

Try talking to yourself without opening your mouth, by simply saying words internally. What if you could search the internet like that -- and get an answer back? In the first live public demo of his new technology, TED Fellow Arnav Kapur introduces AlterEgo: a wearable AI device with the potential to let you silently talk to and get information from a computer system, like a voice inside your head. Learn more about how the device works and the far-reaching implications of this new kind of human-computer interaction.

Have you ever felt like you're talking, but nobody is listening? Here's Julian Treasure to help. In this useful talk, the sound expert demonstrates the how-to's of powerful speaking -- from some handy vocal exercises to tips on how to speak with empathy. A talk that might help the world sound more beautiful.

Everyone's talking about the "Internet of Things," but what exactly does that mean for our future? In this thoughtful course, economist Marco Annunziata looks at how technology is transforming the industrial sector, creating machines that can see, feel, sense and react so they can be operated far more efficiently. Think: airplane parts that send an alert when they need to be serviced, or wind turbines that communicate with one another to generate more electricity. It's a future with exciting implications for us all.