TED Fellow Skylar Tibbits shares 4D printing at TED University. Photo: Ryan Lash

At TED University, members of the TED audience get a chance to step on stage and give a talk — about their work, about their passion, about their life. The talks are always incredible. At TED Universities past, Nina Tandon shared how tissue engineering could potentially lead to personalized medicine, Graham Hill urged us to have less stuff and Bill Gates talked about how state budgets hurt education.

Below, a recap of the talks from TED University session 1 at TED2013, held the morning of Tuesday, Feb. 26.

Skylar Tibbits: Can we make things that make themselves?TED Fellow Skylar Tibbits, who gave the talk “Can we make things that make themselves?” at TED2011, unveiled a new concept: 4D printing. These 3D printed objects have a fourth property: transformation that is programmed into the material itself. Think of a strip of material that is able to fold itself into a cube, or a pipe for plumbing with the ability to adjust on its own.

Susan Kish, the Head of Cross Platform Initiatives at Bloomberg LP, admits that she gets anxious at the thought of a computer problem. And so, she learned to code. A look at the power of understanding code — and why its so important for established business leaders to learn. But perhaps, says Kish, learning to code is even more important for young folks who want to join their ranks someday.

ShaoLan Hsueh shares an easy way to learn Chinese, by connecting characters to facial expressions, body movements and memorable images that conjure up words in English. By learning a base of characters, a full vocabulary isn’t far off. As Hsueh says, it’s “Chineasy.”

Ric Elias: 3 things I learned while my plane crashedRic Elias, who shared “3 things I learned when my plane crashed,” talks about an often-forgotten part of the American immigration issue: education. Less than 5% of undocumented students go to college — not because they don’t want to, but because it’s impossible for them to do so. One part of the problem: In 38 states, undocumented students do not qualify for in-state tuition. Offering some hope: Golden Door scholarships.

Jim Ziolkowski headed to Misomali, Malawi, 20 years ago to build a new school — a mission he’s repeated in many countries through his work with BuildOn. Recently, Ziolkowski headed back to Misomali. While many of his friends had succumbed to AIDS, he found many still there, offering inspiration. Now, multiple schools exist in the community.

Morrow Cater  shares a stat: only 33% of Republicans in America believe that climate change is the result of burning fossil fuels. Why? Because the fossil fuel industry is good to politicians, because disinformation is everywhere, because conservatives feel scared to speak out against core values, and because liberals often take the high moral ground on this issue, which can be very off-putting. Cater gives a call to stop letting politics divide us.

Want to try on glasses or sunglasses without visiting the store? 1-800-Contacts CEO Jonathan Coon demos an app that allows you to do that, right from your phone. With the app, you can take photos of yourself à la Blaise Aguera Y Arcas’s Photosynth and digitally “try on” sunglasses, in any color, shape and style. You can even slide the glasses up and down your nose.

Helen Fisher talks personality attraction at TED University. Photo: Ryan Lash

Helen Fisher, who gave the classic talk on love and cheating, talks about research she did for Match.com on personalities, taking very literally the question of romantic chemistry. Helen Fisher: The brain in loveFisher outlines four types of brain systems, based on how expressive they are of dopamine (creative, impulsive types), serotonin (stable, traditional types), testosterone (direct, emotionally contained types), and estrogen and oxytocin (nurturing, harmonious types). Fisher concludes: The Golden Rule is over; instead try the Platinum Rule: Treat others as they want to be treated.

Juan Enriquez, who at TED2009 gave a talk on the next species of human says we have enough trouble hiding stupid tattoos, which are unique, permanent and instantly recognizable. Today he wants you to think about electronic tattoos, that pesky immortal print of you all over the Internet. Today facial recognition allows someone to take a photo of you, tie it to your photo from a social network, and instantly find out all the other information about you. Because of electronic tattoos we all just might be close to immortality.

Judy MacDonald Johnston wants you to think about a topic you probably avoid daily: the fact of dying. Johnston gives five steps to live a good (end of) life: 1. Make a plan 2. Recruit advocates 3. Be hospital ready 4. Choose caregivers 5. Discuss last words.Philip K. Howard: Four ways to fix a broken legal system

Common Good founder Philip K. Howard, who gave the TED Talk “Four ways to fix a broken legal system,” talks about how digital technology makes using very old technology all the more interesting. He shows some of his beautiful portraits using a film camera.

Laurie Fabiano, author of Elizabeth Street, took a journey to her family’s coastal hometown of Scilla, Italy, where she discovered incredible stories of life after the 1908 Messina earthquake. The earthquake devastated the lives of her family members, who narrowly survived, only to return home to find most of their friends dead. It made Fabiano think: What other moments in history had been lost because history is so one-sided?

TED’s own Bruno Giussani hosted. Photo: Ryan Lash

And make sure to tune into the TED Blog staring Monday, February 25, for our live coverage of TED2013. We’ll be writing about every speaker, as well as all the action on-site in Long Beach, Califorinia.

Arthur Benjamin does "Mathemagic" Arthur Benjamin does “Mathemagic” Armed with standard calculators, audience members at TED2005 race mathemagician Arthur Benjamin through a dizzying maze of digits – and lose. At 8:05, he matches audience members’ DOB with the day of the week they were born.

Jane McGonigal: The game that can give you 10 extra years of life Jane McGonigal: The game that can give you 10 extra years of life Game designer Jane McGonigal’s SuperBetter helped her recover from a head injury. At TEDGlobal 2012, she passes on the healing to the audience, granting them 7.5 extra minutes of life. At 13:00, watch the life-extending action begin.

Michael Sandel: The lost art of democratic debate Michael Sandel: The lost art of democratic debate For philosophy professor Michael Sandel, lively debate is the key to a strong democracy – so he calls on the attendees of TED2010 to bring it back. Throughout the talk, audience members share thoughts on Aristotle and on a then-recent Supreme Court decision.

Charles Hazlewood: Trusting the ensemble Charles Hazlewood: Trusting the ensemble “Did you know that TED is a tune?” asks conductor Charles Hazlewood at TEDGlobal 2011. Starting at 8:48, he leads the audience in rousing chorus inspired by the letters T-E-D.

Beau Lotto + Amy O’Toole: Science is for everyone, kids included Beau Lotto + Amy O’Toole: Science is for everyone, kids included Neuroscientist Beau Lotto pulls the audience into some moments of playful discovery onstage at TEDGlobal 2012. In this talk about the joy of scientific inquiry, his slides show off a language gotcha!. At 12:35, he calls a fellow TED Speaker up to be experimented on.

Evelyn Glennie: How to truly listen Evelyn Glennie: How to truly listen Music can be heard with your whole body, says Grammy-winning deaf percussionist and composer Evelyn Glennie. At TED2003, she asks the audience to listen differently, to rethink music and, at 12:15, to clap the sound of falling snow.

Keith Barry: Brain magic Keith Barry: Brain magic One after another, audience members are bedazzled and baffled by Keith Barry’s psychokinetic hijinks at TED2004. He creates phantom sensations, guesses names of ex-boyfriends and narrowly misses one very sharp object.