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Alex Gendler: A brief history of chess - test

• Garry Kasparov Don't fear intelligent machines. Work with them (39) test
• Brenda Romero Gaming for understanding (29) test
• Seth Priebatsch The game layer on top of the world (27) test
• Demis Hassabis How AI is unlocking the secrets of nature and the universe (26) test
• John Hunter Teaching with the World Peace Game (25) test

Alex Gendler: A day in the life of a Cossack warrior - test

• Gary Barker A reframing of masculinity, rooted in empathy (28) test
• Jackson Katz Violence against women -- it's a men's issue (26) test
• Michael Kimmel Why gender equality is good for everyone — men included (25) test
• Jimmie Briggs 3 things men can do to promote gender equity (24) test
• Stew "Black Men Ski" (24) test

Alex Gendler: Blood, concrete, and dynamite Building the Hoover Dam - test

• Alex Gendler Building the world's largest (and most controversial) power plant (31) test
• Alex Gendler Demolition, disease, and death Building the Panama Canal (28) test
• Glynnis Hood Why do beavers build dams? (28) test
• David Sedlak 4 ways we can avoid a catastrophic drought (25) test
• Kelsey Leonard Why lakes and rivers should have the same rights as humans (23) test

Alex Gendler: Building the impossible Golden Gate Bridge - test

• Ian Firth Bridges should be beautiful (45) test
• Alex Gendler Epic Engineering Building the Brooklyn Bridge (35) test
• Kevin Briggs The bridge between suicide and life (34) test
• Steven Strogatz The science of sync (30) test
• Markham Nolan How to separate fact and fiction online (23) test

Alex Gendler: Building the world's largest (and most controversial) power plant - test

• Eric Liu How to understand power (42) test
• Jeremy Heimans What new power looks like (41) test
• TED-Ed How much land does it take to power the world? (39) test
• TED-Ed The world's biggest battery looks nothing like a battery (36) test
• Joseph Nye Global power shifts (36) test

Alex Gendler: Can you outsmart this logical fallacy? - test

• Marcus du Sautoy The paradox at the heart of mathematics Gödel's Incompleteness Theorem (19) test
• Touria El Glaoui Inside Africa's thriving art scene (17) test
• Liv Boeree 3 lessons on decision-making from a poker champion (15) test
• Young-ha Kim Be an artist, right now! (15) test
• Laolu Senbanjo "The Sacred Art of the Ori" (15) test

Alex Gendler: Can you solve the Alice in Wonderland riddle? - test

• Arthur Benjamin The magic of Fibonacci numbers (32) test
• Dan Finkel Can you solve the world's most evil wizard riddle? (19) test
• Wajdi Mohamed Ratemi The mathematical secrets of Pascal's triangle (17) test
• Margaret Heffernan Dare to disagree (17) test
• Dennis Wildfogel How big is infinity? (17) test

Alex Gendler: Can you solve the bridge riddle? - test

• Laura Vanderkam How to gain control of your free time (32) test
• Brittney Cooper The racial politics of time (29) test
• Alexander Leitner Can time be wasted? (27) test
• Ian Firth Bridges should be beautiful (27) test
• Andrew Zimmerman Jones Does time exist? (26) test

Alex Gendler: Can you solve the death race riddle? - test

• Daniel Finkel Can you solve the dark matter fuel riddle? (22) test
• Taylor Wilson My radical plan for small nuclear fission reactors (15) test
• Ryah Whalen 3 ways to make flying more climate-friendly (14) test
• Shannon Odell This is what happens when you hit the gas (14) test
• Judd A. Schorr Can you solve the airplane riddle? (13) test

Alex Gendler: Can you solve the dragon jousting riddle? - test

• Alex Rosenthal Can you solve the magical maze riddle? (23) test
• Dan Katz Can you solve the cheating royal riddle? (16) test
• Gordon Hamilton Can you solve the Mondrian squares riddle? (14) test
• Gonzalo Vilariño How Argentina's blind soccer team became champions (14) test
• Christian Rudder Inside OKCupid The math of online dating (12) test

Alex Gendler: Can you solve the famously difficult green-eyed logic puzzle? - test

• John Hardy My green school dream (28) test
• Vaitea Cowan How green hydrogen could end the fossil fuel era (26) test
• Bill Gates The innovations we need to avoid a climate disaster (23) test
• Jim Hagemann Snabe Dreams and details for a decarbonized future (21) test
• Angela Francis How to get everyone to care about a green economy (21) test

Alex Gendler: Can you solve the giant iron riddle? - test

• George Zaidan Why your phone battery gets worse over time (37) test
• TED-Ed The world's biggest battery looks nothing like a battery (37) test
• Cedrik Neike Time is running out on climate change. The metaverse could help (24) test
• Emma Nehrenheim The powerful possibilities of recycling the world's batteries (23) test
• Dolly Chugh How to let go of being a "good" person -- and become a better person (17) test

Alex Gendler: Can you solve the monster duel riddle? - test

• Dan Finkel Can you solve the rogue AI riddle? (52) test
• Cordae How a "Hi Level" mindset helps you realize your potential (37) test
• Alex Rosenthal Can you solve the human cannonball riddle? (31) test
• Lucas Husted Game theory challenge Can you predict human behavior? (19) test
• Pavan Sukhdev Put a value on nature! (17) test

Alex Gendler: Can you solve the multiplying rabbits riddle? - test

• Alex Rosenthal Can you solve the rogue submarine riddle? (32) test
• Alex Rosenthal Can you solve the rogue submarine riddle? Difficulty level Master (32) test
• George Zaidan and Charles Morton How do cancer cells behave differently from healthy ones? (30) test
• Arthur Benjamin A performance of "Mathemagic" (28) test
• Nabiha Saklayen Could you recover from illness ... using your own stem cells? (26) test

Alex Gendler: Can you solve the pirate riddle? - test

• Nicki Beaman Griffin The fight for the right to vote in the United States (21) test
• Jacob Soboroff Why do Americans vote on Tuesdays? (20) test
• David Bismark E-voting without fraud (19) test
• Dan Finkel This one weird trick will get you infinite gold (15) test
• Lyla Latif The true cost of gold (15) test

Alex Gendler: Can you solve the prisoner hat riddle? - test

• Vernā Myers How to overcome our biases? Walk boldly toward them (40) test
• Fabio Pacucci Can a black hole be destroyed? (33) test
• D-L Stewart Scenes from a Black trans life (32) test
• Sharif El-Mekki Reviving the legacy of the Black teaching tradition (31) test
• Julieanna L. Richardson The mission to safeguard Black history in the US (31) test

Alex Gendler: Can you solve the rebel supplies riddle? - test

• Dennis Shasha Can you solve the stolen rubies riddle? (38) test
• Zach King The trick to regaining your childlike wonder (34) test
• Yossi Elran Can you solve the prisoner boxes riddle? (30) test
• Iseult Gillespie The myth of Pandora's box (22) test
• Dustin Yellin A journey through the mind of an artist (22) test

Alex Gendler: Can you solve the secret sauce riddle? - test

• Arthur Benjamin A performance of "Mathemagic" (34) test
• Alex Rosenthal Can you solve the rogue submarine riddle? (31) test
• Alex Rosenthal Can you solve the rogue submarine riddle? Difficulty level Master (31) test
• Tanya Khovanova Can you solve the Leonardo da Vinci riddle? (29) test
• Dan Finkel Can you solve the giant cat army riddle? (28) test

Alex Gendler: Can you solve the three gods riddle? - test

• Christian Rudder Inside OKCupid The math of online dating (30) test
• Brett Hennig What if we replaced politicians with randomly selected people? (27) test
• Noriko Arai Can a robot pass a university entrance exam? (25) test
• Alex Gendler Can you solve the secret sauce riddle? (23) test
• Derren Brown Mentalism, mind reading and the art of getting inside your head (23) test

Alex Gendler: Demolition, disease, and death Building the Panama Canal - test

• Lucia Carminati How the Suez Canal changed the world (44) test
• Alex Gendler Blood, concrete, and dynamite Building the Hoover Dam (28) test
• Stefan Al Why isn't the Netherlands underwater? (20) test
• Dan Finkel Can you solve the rogue AI riddle? (20) test
• Anupam Mishra The ancient ingenuity of water harvesting (19) test

Alex Gendler: Epic Engineering Building the Brooklyn Bridge - test

• Alex Gendler Building the impossible Golden Gate Bridge (35) test
• Ian Firth Bridges should be beautiful (34) test
• Aziza Chaouni How I brought a river, and my city, back to life (21) test
• Steven Strogatz The science of sync (19) test
• Alex Gendler Blood, concrete, and dynamite Building the Hoover Dam (18) test

Alex Gendler: Everything changed when the fire crystal got stolen - test

• Emily Parsons-Lord Art made of the air we breathe (20) test
• Danielle Torley I stepped out of grief -- by dancing with fire (19) test
• George T. Whitesides The growing megafire crisis -- and how to contain it (18) test
• Arunabha Ghosh 5 steps for clean air in India (15) test
• Tomás Saraceno Would you live in a floating city in the sky? (15) test

Alex Gendler: History vs. Christopher Columbus - test

• Scott Dinsmore How to find work you love (33) test
• Dolores Huerta How to overcome apathy and find your power (31) test
• Tara Houska The Standing Rock resistance and our fight for Indigenous rights (31) test
• Wadah Khanfar A historic moment in the Arab world (31) test
• Kevin Bales How to combat modern slavery (31) test

Alex Gendler: History vs. Napoleon Bonaparte - test

• Marlene Daut The first and last king of Haiti (21) test
• Paddy Ashdown The global power shift (18) test
• Matt Anticole Why the metric system matters (18) test
• Matteo Salvadore The imaginary king who changed the real world (17) test
• António Guterres Refugees have the right to be protected (17) test

Alex Gendler: How do ventilators work? - test

• Emily Parsons-Lord Art made of the air we breathe (38) test
• Rosamund Adoo-Kissi-Debrah The tragedy of air pollution -- and an urgent demand for clean air (31) test
• Raymond Adkins How do airplanes stay in the air? (30) test
• Raymond Adkins How do airplanes actually fly? (30) test
• María Neira This is your brain on air pollution (29) test

Alex Gendler: How does impeachment work? - test

• Peter Paccone How do US Supreme Court justices get appointed? (27) test
• Eric Liu How to understand power (25) test
• Joseph Nye Global power shifts (24) test
• Jeremy Heimans What new power looks like (24) test
• Belinda Stutzman How is power divided in the United States government? (23) test

Alex Gendler: How one design flaw almost toppled a skyscraper - test

• Ma Yansong Urban architecture inspired by mountains, clouds and volcanoes (26) test
• Stefan Al Will there ever be a mile-high skyscraper? (26) test
• Moshe Safdie Building uniqueness (24) test
• Alex Gendler How the world's tallest skyscraper was built (24) test
• Denise Zmekhol A story of Brazil through a single iconic building (24) test

Alex Gendler: How the world's longest underwater tunnel was built - test

• Miru Kim My underground art explorations (21) test
• Elon Musk The future we're building -- and boring (17) test
• David Lee Why jobs of the future won't feel like work (16) test
• Sougwen Chung Why I draw with robots (16) test
• Alex Gendler Blood, concrete, and dynamite Building the Hoover Dam (15) test

Alex Gendler: How the world's tallest skyscraper was built - test

• Stefan Al Will there ever be a mile-high skyscraper? (36) test
• Michael Green The natural building blocks of sustainable architecture (31) test
• Stefan Al Could we build a wooden skyscraper? (30) test
• Thomas Heatherwick The rise of boring architecture -- and the case for radically human buildings (29) test
• Marc Kushner Why the buildings of the future will be shaped by ... you (28) test

Alex Gendler: How tsunamis work - test

• Nick Pizzo The physics of surfing (46) test
• Lana Mazahreh 3 thoughtful ways to conserve water (44) test
• David Sedlak 4 ways we can avoid a catastrophic drought (43) test
• Balsher Singh Sidhu Are we running out of clean water? (41) test
• Rob Harmon How to keep rivers and streams flowing (41) test

Alex Gendler: Myths and misconceptions about evolution - test

• Harvey Fineberg Are we ready for neo-evolution? (37) test
• Laurence Hurst Is human evolution speeding up or slowing down? (32) test
• Prosanta Chakrabarty Four billion years of evolution in six minutes (26) test
• Lara Durgavich An evolutionary perspective on human health and disease (23) test
• Jennifer Kahn Gene editing can now change an entire species -- forever (22) test

Alex Gendler: Plato's Allegory of the Cave - test

• Wisecrack Plato's best (and worst) ideas (27) test
• Francesco Sauro Deep under the Earth's surface, discovering beauty and science (23) test
• Danielle Feinberg The magic ingredient that brings Pixar movies to life (23) test
• Rogier van der Heide Why light needs darkness (22) test
• David Lindell A camera that can see around corners (22) test

Alex Gendler: The Egyptian myth of Isis and the seven scorpions - test

• Alex Gendler The Egyptian myth of the death of Osiris (30) test
• Rabiaa El Garani Hope and justice for women who've survived ISIS (21) test
• Aicha el-Wafi + Phyllis Rodriguez The mothers who found forgiveness, friendship (16) test
• Suheir Hammad Poems of war, peace, women, power (15) test
• Yasmin Green How technology can fight extremism and online harassment (15) test

Alex Gendler: The Egyptian myth of the death of Osiris - test

• Alex Gendler The Egyptian myth of Isis and the seven scorpions (30) test
• Tom Honey Why would God create a tsunami? (20) test
• Nedra Glover Tawwab Your 3-step guide to setting better boundaries at work (16) test
• Niro Sivanathan The counterintuitive way to be more persuasive (16) test
• Cynthia Fay Davis The myth of the moon goddess (16) test

Alex Gendler: The Turing test Can a computer pass for a human? - test

• Oscar Schwartz Can a computer write poetry? (37) test
• Raphael Arar How we can teach computers to make sense of our emotions (29) test
• Nick Bostrom What happens when our computers get smarter than we are? (26) test
• Tom Gruber How AI can enhance our memory, work and social lives (24) test
• The TED Interview Ray Kurzweil on what the future holds next (24) test

Alex Gendler: The myth of Hercules - test

• Iseult Gillespie The myth of Jason and the Argonauts (17) test
• Tim Adams An antihero of one's own (14) test
• Cynthia Fay Davis The myth of the moon goddess (10) test
• Iseult Gillespie The myth of Jason, Medea, and the Golden Fleece (10) test
• Gowri Shankar A king cobra bite -- and a scientific discovery (9) test

Alex Gendler: The myth of Loki and the master builder - test

• Scott A. Mellor How Thor got his hammer (28) test
• Iseult Gillespie The myth of Arachne (24) test
• Kay Almere Read The Aztec myth of the unlikeliest sun god (20) test
• Iseult Gillespie The myth of Loki and the deadly mistletoe (20) test
• Iseult Gillespie The myth of Zeus' test (20) test

Alex Gendler: The myth of Sisyphus - test

• Nina Medvinskaya Is life meaningless? And other absurd questions (20) test
• Iseult Gillespie The myth of Hades and Persephone (18) test
• Iseult Gillespie A tour of the ancient Greek Underworld (18) test
• Iseult Gillespie The myth of Prometheus (14) test
• Shunan Teng How the Monkey King escaped the underworld (14) test

Alex Gendler: The original ring of power - test

• Glenn Greenwald Why privacy matters (17) test
• Steven Pinker and Rebecca Newberger Goldstein The long reach of reason (16) test
• Erick Wilberding This tool will help improve your critical thinking (16) test
• George Monbiot The new political story that could change everything (14) test
• Dolly Chugh How to let go of being a "good" person -- and become a better person (14) test

Alex Gendler: The wars that inspired Game of Thrones - test

• Mark Robinson and Alex Gendler History vs. Henry VIII (22) test
• Marlene Daut The first and last king of Haiti (18) test
• Jeremy Heimans What new power looks like (16) test
• Andrew McDonald The rise and fall of the Kingdom of Man (15) test
• Joseph Nye Global power shifts (15) test

Alex Gendler: The woman who stared at the sun - test

• Fabio Pacucci Why the Sun could crash your internet (40) test
• Miho Janvier Lessons from a solar storm chaser (22) test
• Marjan van Aubel The beautiful future of solar power (21) test
• Dan Kwartler Why don't we cover the desert with solar panels? (21) test
• Dave Brain What a planet needs to sustain life (20) test

Alex Gendler: What is a gift economy? - test

• Stacey Kramer The best gift I ever survived (34) test
• Fallon Goodman Why you feel anxious socializing (and what to do about it) (24) test
• Cal Newport Why you should quit social media (22) test
• Geoff Mulgan Post-crash, investing in a better world (21) test
• Louie Schwartzberg Nature. Beauty. Gratitude. (20) test

Alex Gendler: Which voting system is the best? - test

• Amber McReynolds An election system that puts voters (not politicians) first (27) test
• David R. Liu Can we cure genetic diseases by rewriting DNA? (27) test
• Katherine M. Gehl US politics isn't broken. It's fixed (24) test
• Hyeonseo Lee My escape from North Korea (24) test
• David Bismark E-voting without fraud (22) test

Alex Gendler: Why are airplanes slower than they used to be? - test

• Ryah Whalen 3 ways to make flying more climate-friendly (28) test
• Kathryn Bouskill The unforeseen consequences of a fast-paced world (27) test
• Katerina Kaouri The sonic boom problem (27) test
• Richard Browning How do jetpacks work? And why don't we all have them? (25) test
• Cory Combs The future of flying is electrifying (24) test

Alex Gendler: Why do we cry? The three types of tears - test

• Kathy Mendias The mood-boosting power of crying (37) test
• YeYoon Kim What kids can teach adults about asking for help (12) test
• Matt Walker How sleep affects your emotions (10) test
• Eve Ensler Embrace your inner girl (10) test
• Natalie MacMaster Cape Breton fiddling in reel time (10) test

Alex Gendler: Why doesn't the Leaning Tower of Pisa fall over? - test

• Stefan Al Will there ever be a mile-high skyscraper? (31) test
• Iwan Baan Ingenious homes in unexpected places (19) test
• Alex Gendler Building the impossible Golden Gate Bridge (16) test
• Alex Gendler How the world's tallest skyscraper was built (16) test
• Alex Gendler Epic Engineering Building the Brooklyn Bridge (16) test

Alex Gendler: Why elephants never forget - test

• Lucy King How bees can keep the peace between elephants and humans (47) test
• Chase LaDue and Bruce A. Schulte The incredible, bendable, twistable, expandable elephant trunk (35) test
• Carl Safina What are animals thinking and feeling? (29) test
• Diana Reiss, Peter Gabriel, Neil Gershenfeld and Vint Cerf The interspecies internet? An idea in progress (24) test
• Amy Milton Can we edit memories? (21) test

Alex Gendler: Why should you read "Crime and Punishment"? - test

• Lindsey A. Sherrill Are you an ethical true crime fan? 4 questions to ask (22) test
• Kelli Swazey Life that doesn't end with death (21) test
• David R. Dow Lessons from death row inmates (17) test
• Bruce Feiler The secret to mastering life's biggest transitions (17) test
• Yang Lan The generation that's remaking China (16) test

Alex Gendler: Why should you read "The Master and Margarita"? - test

• Andrew Peek How your personal narrative limits your future (15) test
• John Paget How to keep your hometown from becoming a ghost town (14) test
• Francisco Díez-Buzo Why should you read "One Hundred Years of Solitude"? (14) test
• David R. Dow Lessons from death row inmates (14) test
• Eva Zeisel The playful search for beauty (14) test

Alex Hofeldt: How small are we in the scale of the universe? - test

• George Smoot The design of the universe (47) test
• Katie Mack Life-altering questions about the end of the universe (44) test
• Andrew Connolly What's the next window into our universe? (43) test
• Katie Mack The death of the universe -- and what it means for life (41) test
• Wendy Freedman This telescope might show us the beginning of the universe (41) test

Alex Honnold: How I climbed a 3,000-foot vertical cliff -- without ropes - test

• Matthew Childs 9 life lessons from rock climbing (31) test
• Robert Full The sticky wonder of gecko feet (24) test
• Amy Purdy Living beyond limits (24) test
• Ronald Rael An architect's subversive reimagining of the US-Mexico border wall (23) test
• Ingrid Betancourt What six years in captivity taught me about fear and faith (23) test

Alex Keshavarzi: 3 mysteries of the universe — and a new force that might explain them - test

• Renée Hlozek The death of the universe (56) test
• Risa Wechsler The search for dark matter -- and what we've found so far (54) test
• Brian Cox CERN's supercollider (52) test
• Jonathan Butterworth What's the smallest thing in the universe? (51) test
• Claire Malone The missing 96 percent of the universe (48) test

Alex Kipman: A futuristic vision of the age of holograms - test

• Kate Messner How to build a fictional world (41) test
• Greg Anderson Why there's no such thing as objective reality (41) test
• Herman Narula The transformative power of video games (39) test
• Cleo Wade Want to change the world? Start by being brave enough to care (38) test
• Pranav Mistry The thrilling potential of SixthSense technology (37) test

Alex Koster: What will the dream car of the future be like? - test

• Chris Urmson How a driverless car sees the road (52) test
• Chris Gerdes The future race car -- 150mph, and no driver (50) test
• Shai Agassi A new ecosystem for electric cars (48) test
• Jennifer Healey If cars could talk, accidents might be avoidable (45) test
• Freeman H. Shen A future with fewer cars (43) test

Alex Laskey: How behavioral science can lower your energy bill - test

• Jordan Wirfs-Brock The four things you need to know about the energy you use (54) test
• DeAndrea Salvador How we can make energy more affordable for low-income families (52) test
• Rose M. Mutiso How to bring affordable, sustainable electricity to Africa (48) test
• Ksenia Petrichenko What if buildings created energy instead of consuming it? (47) test
• Sheila Ngozi Oparaocha The missing piece of the clean energy transition (45) test

Alex Luebke, Vivek Kumbhari: How you could see inside your body — with a micro-robot - test

• Guy Hoffman Robots with "soul" (41) test
• Ken Goldberg 4 lessons from robots about being human (38) test
• Rodney Brooks Robots will invade our lives (37) test
• Leila Takayama What's it like to be a robot? (36) test
• Dennis Hong 7 new species of robot that jump, dance — and walk on water (35) test

Alex Rosenthal and George Zaidan: The case of the missing fractals - test

• Shimon Schocken The self-organizing computer course (18) test
• Gordon Hamilton Can you solve the Mondrian squares riddle? (17) test
• Corneille Ewango A hero of the Congo forest (17) test
• Colm Kelleher What is Zeno's Dichotomy Paradox? (17) test
• Arthur Benjamin The magic of Fibonacci numbers (17) test

Alex Rosenthal and Pall Thordarson: Which is better Soap or hand sanitizer? - test

• Lana Mazahreh 3 thoughtful ways to conserve water (40) test
• David Sedlak 4 ways we can avoid a catastrophic drought (40) test
• Rob Harmon How to keep rivers and streams flowing (39) test
• Deepika Kurup A young scientist's quest for clean water (38) test
• Anupam Mishra The ancient ingenuity of water harvesting (38) test

Alex Rosenthal: Can you solve a mystery before Sherlock Holmes? - test

• Justin Baldoni Why I'm done trying to be "man enough" (21) test
• Tony Porter A call to men (18) test
• Chimamanda Ngozi Adichie We should all be feminists (17) test
• Joseph Lekuton A parable for Kenya (15) test
• Crush Club "My Man" / "Bohanna" / "We Dance" (15) test

Alex Rosenthal: Can you solve the human cannonball riddle? - test

• Nabiha Saklayen Could you recover from illness ... using your own stem cells? (45) test
• Nina Tandon Caring for engineered tissue (45) test
• Susan Lim Transplant cells, not organs (41) test
• Craig A. Kohn What are stem cells? (40) test
• Anthony Atala Growing new organs (37) test

Alex Rosenthal: Can you solve the magical maze riddle? - test

• Fabio Pacucci Whoever builds something here will be rich beyond measure (27) test
• Alex Gendler Can you solve the dragon jousting riddle? (23) test
• Brian Christian How to get better at video games, according to babies (19) test
• Dan Katz Can you solve the cheating royal riddle? (17) test
• Ben Kacyra Ancient wonders captured in 3D (17) test

Alex Rosenthal: Can you solve the rogue submarine riddle? - test

• Ganesh Pai Can you solve the passcode riddle? (38) test
• Dennis Wildfogel How big is infinity? (36) test
• Henri Picciotto Can you solve the alien pyramid riddle? (34) test
• Daniel Finkel Can you solve the sea monster riddle? (34) test
• Alex Gendler Can you solve the multiplying rabbits riddle? (32) test

Alex Rosenthal: Can you solve the rogue submarine riddle? Difficulty level Master - test

• Ganesh Pai Can you solve the passcode riddle? (38) test
• Dennis Wildfogel How big is infinity? (36) test
• Henri Picciotto Can you solve the alien pyramid riddle? (34) test
• Daniel Finkel Can you solve the sea monster riddle? (34) test
• Alex Gendler Can you solve the multiplying rabbits riddle? (32) test

Alex Rosenthal: Can you solve the secret assassin society riddle? - test

• James McManus Why is Texas hold 'em so popular? (38) test
• Lennart Green Close-up card magic with a twist (28) test
• Marco Tempest A cyber-magic card trick like no other (25) test
• Helder Guimarães A magical search for a coincidence (24) test
• Alice Pailhès Secrets of the mind and free will -- revealed by magic tricks (23) test

Alex Rosenthal: The Artists | Think Like A Coder, Ep 5 - test

• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (32) test
• Alexa Meade Your body is my canvas (32) test
• Alex Rosenthal The Prison Break | Think Like A Coder, Ep 1 (31) test
• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (29) test
• Alex Rosenthal The Chasm | Think Like A Coder, Ep 6 (28) test

Alex Rosenthal: The Chasm | Think Like A Coder, Ep 6 - test

• Alex Rosenthal The Tower of Epiphany | Think Like A Coder, Ep 7 (37) test
• Alex Rosenthal The Prison Break | Think Like A Coder, Ep 1 (33) test
• Alex Rosenthal The Artists | Think Like A Coder, Ep 5 (28) test
• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (28) test
• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (26) test

Alex Rosenthal: The Factory | Think Like A Coder, Ep 9 - test

• Alex Rosenthal The Prison Break | Think Like A Coder, Ep 1 (38) test
• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (33) test
• Alex Rosenthal The World Machine | Think Like A Coder, Ep 10 (33) test
• Alex Rosenthal The Artists | Think Like A Coder, Ep 5 (32) test
• Alex Rosenthal The Gauntlet | Think Like A Coder, Ep 8 (32) test

Alex Rosenthal: The Furnace Bots | Think Like A Coder, Ep 3 - test

• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (28) test
• Alex Rosenthal The Prison Break | Think Like A Coder, Ep 1 (27) test
• Alex Rosenthal The Gauntlet | Think Like A Coder, Ep 8 (24) test
• Alex Rosenthal The Artists | Think Like A Coder, Ep 5 (23) test
• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (23) test

Alex Rosenthal: The Gauntlet | Think Like A Coder, Ep 8 - test

• Alex Rosenthal The World Machine | Think Like A Coder, Ep 10 (34) test
• Alex Rosenthal The Factory | Think Like A Coder, Ep 9 (32) test
• Alex Rosenthal The Prison Break | Think Like A Coder, Ep 1 (29) test
• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (28) test
• Alex Rosenthal The Train Heist | Think Like A Coder, Ep 4 (27) test

Alex Rosenthal: The Prison Break | Think Like A Coder, Ep 1 - test

• Alex Rosenthal The Resistance | Think Like A Coder, Ep 2 (42) test
• Alex Rosenthal The World Machine | Think Like A Coder, Ep 10 (39) test
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Alyssa Loorya: What I learned from digging under New York City's streets - test

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Alyssa Monks: How loss helped one artist find beauty in imperfection - test

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Amanda Gorman: Using your voice is a political choice - test

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Amanda Mattes: Kabuki The people's dramatic art - test

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Amanda Renteria: A bold plan to transform access to the US social safety net - test

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Amanda Schochet: How bumble bees inspired a network of tiny museums - test

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Amber Case: We are all cyborgs now - test

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Amber Hikes: Want to truly succeed? Lift others up while you climb - test

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Amber M. Yates: How this disease changes the shape of your cells - test

• Melody Smith How bones make blood (45) test
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Amber McReynolds: An election system that puts voters (not politicians) first - test

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Amber Stuver: Einstein's twin paradox explained - test

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Ameenah Gurib-Fakim and Stephanie Busari: An interview with Mauritius's first female president - test

• Euvin Naidoo Why invest in Africa (37) test
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Ameenah Gurib-Fakim: Humble plants that hide surprising secrets - test

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Ameera Harouda: Why I put myself in danger to tell the stories of Gaza - test

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• Majd Mashharawi How I'm making bricks out of ashes and rubble in Gaza (32) test
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Amel Karboul: The global learning crisis -- and what to do about it - test

• Andreas Schleicher Use data to build better schools (59) test
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America Ferrera: My identity is a superpower -- not an obstacle - test

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Ameya Gondhalekar: Why are cockroaches so hard to kill? - test

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Ami Angelowicz: The terrors of sleep paralysis - test

• Matt Walker A walk through the stages of sleep (57) test
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Ami Klin: A new way to diagnose autism - test

• Wendy Chung Autism — what we know (and what we don't know yet) (56) test
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Amina J. Mohammed: A new perspective on the journey to net-zero - test

• Mary Robinson Why climate change is a threat to human rights (40) test
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Amir Nizar Zuabi: The Herds, a vast act of theater to spark climate action - test

• Damon Gameau The story that shapes your relationship with nature (38) test
• Amir Nizar Zuabi Walk with Little Amal, a theatrical journey celebrating the refugee experience (35) test
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Amir Nizar Zuabi: Walk with Little Amal, a theatrical journey celebrating the refugee experience - test

• Amir Nizar Zuabi The Herds, a vast act of theater to spark climate action (35) test
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Amishi Jha: How to tame your wandering mind - test

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Amit Kalra: 3 creative ways to fix fashion's waste problem - test

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Amit Sood: Building a museum of museums on the web - test

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Amit Sood: Every piece of art you've ever wanted to see -- up close and searchable - test

• Titus Kaphar Can art amend history? (33) test
• Lucas Rizzotto Why I built my own time machine (32) test
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Amjad Masad: How AI can help you turn an idea into the next great app - test

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Amma Y. Ghartey-Tagoe Kootin: A historical musical that examines Black identity in the 1901 World's Fair - test

• Julieanna L. Richardson The mission to safeguard Black history in the US (36) test
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Amory Lovins: A 40-year plan for energy - test

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Amory Lovins: Winning the oil endgame - test

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Amos Winter: The cheap all-terrain wheelchair - test

• Rosario Perazolo Masjoan ¿Cuándo te importa mi silla de ruedas? (36) test
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Amy Adele Hasinoff: How to practice safe sexting - test

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Amy Adkins: 3 tips to boost your confidence - test

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Amy Adkins: The myth of Icarus and Daedalus - test

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Amy Adkins: Who am I? A philosophical inquiry - test

• Shankar Vedantam You don't actually know what your future self wants (28) test
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Amy Adkins: Why do we dream? - test

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Amy Baxter: How to hack your brain when you're in pain - test

• Karen D. Davis How does your brain respond to pain? (79) test
• Joshua W. Pate The mysterious science of pain (72) test
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Amy C. Edmondson: How to lead in a crisis - test

• Thomas Goetz It's time to redesign medical data (34) test
• Gitte Frederiksen Great leadership is a network, not a hierarchy (31) test
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• David Cameron The next age of government (28) test

Amy Cuddy: Your body language may shape who you are - test

• Eric Liu How to understand power (47) test
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Amy Edmondson: How to turn a group of strangers into a team - test

• David Lee Why jobs of the future won't feel like work (37) test
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Amy Green: A video game to cope with grief - test

• David Perry Are games better than life? (43) test
• Kris Alexander How video games can level up the way you learn (38) test
• Brenda Romero Gaming for understanding (37) test
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• Noah Raford How gaming can be a force for good (34) test

Amy Herman: A lesson on looking - test

• Laolu Senbanjo "The Sacred Art of the Ori" (40) test
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• Kara Logan Berlin 3 ways to be a more effective fundraiser (32) test
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Amy Hrdina and Jesse Kroll: What's in the air you breathe? - test

• Emily Parsons-Lord Art made of the air we breathe (38) test
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• George Zaidan How do gas masks actually work? (29) test

Amy Kurzweil: Time traveling with AI to connect with lost loved ones - test

• Bruce Feiler The secret to mastering life's biggest transitions (37) test
• Emily Esfahani Smith There's more to life than being happy (36) test
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Amy Lockwood: Selling condoms in the Congo - test

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Amy Milton: Can we edit memories? - test

• WorkLife with Adam Grant How to remember anything (55) test
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Amy Nicole Baker: 7 common questions about workplace romance - test

• WorkLife with Adam Grant We don't have to fight loneliness alone (40) test
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• WorkLife with Adam Grant Bonus The fall of WeWork's culture (40) test
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Amy Padnani: How we're honoring people overlooked by history - test

• Scott Dinsmore How to find work you love (46) test
• Ricardo Semler How to run a company with (almost) no rules (45) test
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Amy Powney: How to fix fashion and protect the planet - test

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Amy Purdy: Living beyond limits - test

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Amy Smith: Simple designs to save a life - test

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Amy Tan: Where does creativity hide? - test

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Amy Webb: How I hacked online dating - test

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Anand Agarawala: Rethink the desktop with BumpTop - test

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