Hank debunks several apocalypse theories that predict Earth's demise in 2012.

To keep up with a rapidly evolving job market, hiring practices need to change, too. In this practical talk, talent strategy expert Nithya Vaduganathan shares five crucial tips every hiring manager (and job seeker) should know in order...

Math is logical, functional and just ... awesome. Mathemagician Arthur Benjamin explores hidden properties of that weird and wonderful set of numbers, the Fibonacci series. (And reminds you that mathematics can be inspiring, too!)

What if, no matter how strong your password was, a hacker could crack it just as easily as you can type it? In fact, what if all sorts of puzzles we thought were hard turned out to be easy? Mathematicians call this problem P vs. NP, it...

Of all the mundane yet astonishing marvels of human ingenuity, knowing what it takes to heat a room to a comfortable temperature is TED Fellow Kathy Hannun's favorite. She takes us on a journey across the planet and under the sea to...

Fat cells don't often receive praise in everyday life, but they probably deserve more credit, as they might be healing our wounds.

Hollywood needs to stop resisting what the world actually looks like, says actor, director and activist America Ferrera. Tracing the contours of her career, she calls for more authentic representation of different cultures in media --...

In 2012, scientists at CERN discovered evidence of the Higgs boson. The what? The Higgs boson is one of two types of fundamental particles and is a particular game-changer in the field of particle physics, proving how particles gain...

In which John Green continues to teach you about Mary Shelley's Frankenstein. You'll learn about romantic vs Romantic, the latter of which is a literary movement. John will also look at a few different critical readings of Frankenstein,...

Your digestive system impacts the rest of your body in all sorts of unexpected ways, from keeping your heart healthy to literally making you feel happier.

We all know about inter species animal hybrids - Napoleon Dynamite's favorite animal, the liger, is a typical example. But could a human and our closest primate relative the chimpanzee also breed a living hybrid? Hank explores this ......

Back in the day, bacterial diseases like dysentery were super deadly, but the nomadic people in northern Africa had long known about an effective, if hard to swallow, cure.

We can use a mosquito's own instincts against her. In a rather unforgettable presentation, Bart Knols demos the imaginative solutions his team is developing to fight malaria -- including Limburger cheese and a deadly pill.

We're taught to be cool around strange dogs because they smell fear, and that might be true, but your fear is probably freaking them out too!

There are some deeply ingrained stereotypes about Dungeons & Dragons, and those stereotypes usually begin and end with people shouting "NERD!!!" But the reality of the D&D universe is a whole lot more complex. Rather than being an escape...

Sir Tim Berners-Lee invented the World Wide Web 25 years ago. So it’s worth a listen when he warns us: There’s a battle ahead. Eroding net neutrality, filter bubbles and centralizing corporate control all threaten the web’s wide-open...

How do foxes know where to pounce when they can't see their prey? There's evidence they're using the Earth's magnetic field to help.

Reuse of syringes, all too common in under-funded clinics, kills 1.3 million each year. Marc Koska clues us in to this devastating global problem with facts, photos and hidden-camera footage. He shares his solution: a low-cost syringe...

After he ended up on a watch list by accident, Hasan Elahi was advised by his local FBI agents to let them know when he was traveling. He did that and more ... much more.

Hank introduces us to oxygen - the element that makes it possible for most animals to live, but which is simultaneously responsible for a lot of bad things going on in our bodies.

Water is a special substance for several reasons, and you may have noticed an important one right in your cold drink: ice. Solid ice floats in liquid water, which isn't true for most substances. But why? George Zaidan and Charles Morton...

Working in the White House in the 1840s may have been more hazardous than we thought.

You've probably noticed that dead or dying bugs end up on their backsides, and that's not just your imagination! It turns out there are some physics at play here.

Our Milky Way Galaxy once dined on the Sausage Galaxy, and Jupiter's auroras seem to be heavily influenced by one of its moons. It's a galaxy-eat-galaxy kind of universe out there!