• t. boone pickens: let's transform energy—with natural gas
• when black women walk, things change
• tabetha boyajian the most mysterious star in the universe
• taiye selasi don't ask where i'm from, ask where i'm a local
• takaharu tezuka the best kindergarten you've ever seen
• tal danino programming bacteria to detect cancer (and maybe treat it)
• tal golesworthy: how i repaired my own heart
• tali sharot: the optimism bias
• talithia williams own your body's data
• tan le: a headset that reads your brainwaves
• tan le: my immigration story
• tania luna how a penny made me feel like a millionaire
• tania simoncelli should you be able to patent a human gene
• taryn simon photographs secret sites
• taryn simon: the stories behind the bloodlines
• everything you hear on film is a lie
• tasso azevedo: hopeful lessons from the battle to save rainforests
• tavi gevinson: a teen just trying to figure it out
• taylor wilson: my radical plan for small nuclear fission reactors
• taylor wilson: yup, i built a nuclear fusion reactor
• a climate solution where all sides can win
• ted staff it's ted, the musical
• teddy cruz how architectural innovations migrate across borders
• teenaged boy wonders play bluegrass
• teitur home is a song i've always remembered
• temple grandin: the world needs all kinds of minds
• terry moore: how to tie your shoes
• terry moore: why is 'x' the unknown?
• thandie newton: embracing otherness, embracing myself
• the design genius of charles + ray eames
• philip rosedale on second life
• the interspecies internet an idea in progress
• the jill and julia show
• the lady lifers a moving song from women in prison for life
• the lxd: in the internet age, dance evolves ... 
• the raspyni brothers juggle and jest
• thelma golden: how art gives shape to cultural change
• theo jansen: my creations, a new form of life
• they might be giants play at 8:30 am
• thom mayne on architecture as connection
• thomas barnett: rethinking america's military strategy
• dolby + garniez play "la vie en rose"
• thomas goetz: it's time to redesign medical data
• thomas heatherwick
• thomas hellum: the world's most boring television ... and why it's hilariously addictive
• thomas insel: toward a new understanding of mental illness
• thomas p. campbell: weaving narratives in museum galleries
• thomas peschak dive into an ocean photographer's world
• thomas piketty: new thoughts on capital in the twenty-first century
• thomas suarez: a 12-year-old app developer
• thomas thwaites: how i built a toaster—from scratch
• our story of rape and reconciliation
• thulasiraj ravilla: how low-cost eye care can be world-class
• tierney thys swims with the giant sunfish
• tim berners-lee: the year open data went worldwide
• tim berners-lee a magna carta for the web
• tim brown: tales of creativity and play
• tim brown urges designers to think big
• tim ferriss: smash fear, learn anything
• why you should define your fears instead of your goals
• tim harford how frustration can make us more creative
• tim harford: trial, error and the god complex
• tim jackson: an economic reality check
• tim leberecht: 3 ways to (usefully) lose control of your brand
• 4 ways to build a human company in the age of machines
• tim urban inside the mind of a master procrastinator
• timothy bartik: the economic case for preschool
• timothy ihrig what we can do to die well
• timothy prestero: design for people, not awards
• a queer vision of love and marriage
• a.j. jacobs how healthy living nearly killed me
• toby shapshak you don't need an app for that
• tod machover and dan ellsey play new music
• a temporary tattoo that brings hospital care to the home
• todd humphreys: how to fool a gps
• todd kuiken: a prosthetic arm that "feels"
• an intergalactic guide to using a defibrillator
• tom chatfield: 7 ways games reward the brain
• tom honey on god and the tsunami
• tom hulme what can we learn from shortcuts
• tom rielly delivers a comic sendup of ted2006
• tom shannon: the painter and the pendulum
• tom shannon's anti-gravity sculpture
• tom thum the orchestra in my mouth
• tom uglow an internet without screens might look like this
• tom wujec: build a tower, build a team
• tom wujec demos the 13th-century astrolabe
• tom wujec: got a wicked problem? first, tell me how you make toast
• tom wujec: 3 ways the brain creates meaning
• a.j. jacobs how healthy living nearly killed me
• toni mac the laws that sex workers really want
• tony fadell the first secret of design is ... noticing
• tony porter: a call to men
• tony robbins: why we do what we do
• tony wyss-coray how young blood might help reverse aging. yes, really
• topher white: what can save the rainforest? your used cell phone
• torsten reil builds better animations
• zach kaplan and keith schacht demo toys from the future
• tracy chevalier: finding the story inside the painting
• travis kalanick uber's plan to get more people into fewer cars
• trevor aaronson how this fbi strategy is actually creating us-based terrorists
• ballroom dance that breaks gender roles
• trevor timm how free is our freedom of the press
• how pollution is changing the ocean's chemistry
• tristan harris how better tech could protect us from distraction
• tristram stuart: the global food waste scandal
• tristram wyatt the smelly mystery of the human pheromone
• iran and israel: peace is possible
• tshering tobgay this country isn't just carbon neutral—it's carbon negative
• two young scientists break down plastics with bacteria
• tyler dewitt: hey science teachers—make it fun
• tyrone hayes + penelope jagessar chaffer: the toxic baby?