ENCORE Think back, way back. Beyond last week or last year … to what was happening on Earth 100,000 years ago. Or 100 million years ago. It’s hard to fathom such enormous stretches of time, yet to understand the evolution of the cosmos - and our place in it – your mind needs to grasp the deep meaning of eons. Discover techniques for thinking in units of billions of years, and how the events that unfold over such intervals have left their mark on you.
ENCORE It’s hard to get lost these days. GPS pinpoints your location to within a few feet. Discover how our need to get from A to B holds clues about what makes us human, and what we lose now that every digital map puts us at the center.
Plus, stories of animal navigation: how a cat found her way home across Florida, and the magnetic navigation systems used by salmon and sea turtles.
Also, why you’ll soon be riding in driverless cars. And, how to map our universe.
You are surrounded by products. Most of them, factory-made. Yet there was a time when building things by hand was commonplace, and if something stopped working, well, you jumped into the garage and fixed it, rather than tossing it into the circular file.
Participants at the Maker Faire are bringing back the age of tinkering, one soldering iron and circuit board at a time. Meet the 12-year old who built a robot to solve his Rubik’s Cube, and learn how to print shoes at home. Yes, “print.”
Alien life. A flurry of recent discoveries has shifted the odds of finding it. Scientists use the Kepler telescope to spot a planet the same size and temperature as Earth … and announce that there could be tens of billions of similar worlds, just in our galaxy!
Plus, new gravity data suggests a mammoth reservoir of water beneath the icy skin of Saturn’s moon Enceladus … and engineers are already in a race to design drills that can access the subsurface ocean of another moon, Jupiter's Europa.
Get ready for déjà vu as you listen to some of our favorite interviews in the past year. It's our annual fundraising podcast. Come for the great interviews, stay for the great interviews. Lend us your support along the way.
What’s for dinner? Maybe fried bugs. Listen as we do a taste test. Speaking of dinner, learn why saliva’s acceptable as long as it’s in our mouth. But dollop some into our own soup, and we push the bowl away.
What goes up must come down. But it’s human nature to want to put things back together again. It can even be a matter of survival in the wake of some natural or manmade disasters.
First, a portrait of disaster: the eruption of Tambora in 1815 is the biggest volcanic explosion in 5,000 years. It changed the course of history, although few people have heard of it.
Then, stories of reconstruction: assembling, disassembling, moving and reassembling one of the nation's largest T. Rex skeletons, and what we learn about dinos in the process.
ENCORE Imagine biting into a rich chocolate donut and not tasting it. That’s what happened to one woman when she lost her sense of smell. Discover what scientists have learned about how the brain experiences flavor, and the evolutionary intertwining of odor and taste.
Plus a chef who tricks tongues into tasting something they’re not. It’s chemical camouflage that can make crabgrass taste like basil and turn bitter crops into delicious dishes – something that could improve nutrition world-wide.
ENCORE We all crave power: to run laptops, charge cell phones, and play Angry Birds. But if generating energy is easy, storing it is not. Remember when your computer conked out during that cross-country flight? Why can’t someone build a better battery?
Discover why battery design is stuck in the 1800s, and why updating it is key to future green transportation (not to mention more juice for your smartphone). Also, how to build a new type of solar cell that can turn sunlight directly into fuel at the pump.
Happy Birthday, World Wide Web! The 25-year-old Web, along with the Internet and the personal computer, are among mankind’s greatest inventions. But back then, who knew?
A techno-writer reminisces about the early days of the WWW and says he didn’t think it would ever catch on.
Also, meet an inventor who claims his innovation will leave your laptop in the dust. Has quantum computing finally arrived?
Plus, why these inventions are not as transformative as other creative biggies of history: The plow. The printing press. And… the knot?
ENCORE One plus one is two. But what’s the square root of 64, divided by 6 over 12?* Wait, don’t run for the hills! Math isn’t scary. It helps us describe and design our world, and can be easier to grasp than the straight edge of a protractor.
Discover how to walk through the city and number-crunch simultaneously using easy tips for estimating the number of bricks in a building or squirrels in the park. Plus, why our brains are wired for finger-counting … whether aliens would have calculators … and history’s most famous mathematical equations (after e=mc2).
ENCORE The machines are coming! Meet the prototypes of your future robot buddies and discover how you may come to love a hunk of hardware. From telerobots that are your mechanical avatars … to automated systems for the disabled … and artificial hands that can diffuse bombs.
Plus, the ethics of advanced robotics: should life-or-death decisions be automated?
And, a biologist uses robo-fish to understand evolution.
ENCORE It's one of the biggest questions you can ask: has the universe existed forever? The Big Bang is supposedly the moment it all began. But now scientists wonder if there isn't an earlier chapter to our origin story. And maybe chapters before that! What happened before the Big Bang? It’s the ultimate prequel.
Plus – the Big Bang as scientific story: nail biter or snoozer?
ENCORE Computers and DNA have a few things in common. Both use digital codes and are prone to viruses. And, it seems, both can be hacked. From restoring the flavor of tomatoes to hacking into the president's DNA, discover the promise and peril of gene tinkering.
Plus, computer hacking. Just how easy is it to break into your neighbor’s email account? What about the CIA’s?
Also, one man’s concern that radio telescopes might pick up an alien computer virus.
Zombies are making a killing in popular culture. But where did the idea behind these mythical, cerebrum-supping nasties come from? Discover why they may be a hard-wired inheritance from our Pleistocene past.
Also, how a whimsical mathematical model of a Zombie apocalypse can help us withstand earthquakes and disease outbreaks, and how the rabies virus contributed to zombie mythology.
Plus, new ideas for how doctors should respond when humans are in a limbo state between life and death: no pulse, but their brains continue to hum.
ENCORE You can get your point across in many ways: email, texts, or even face-to-face conversation (does anyone do that anymore?). But ants use chemical messages when organizing their ant buddies for an attack on your kitchen. Meanwhile, your human brain sends messages to other brains without you uttering a word.
Hear these communication stories … how language evolved in the first place… why our brains love a good tale …and how Facebook is keeping native languages from going extinct.
ENCORE Mooooove over, make way for the cows, the chickens … and other animals! Humans can learn a lot from our hairy, feathered, four-legged friends. We may wear suits and play Sudoku, but Homo sapiens are primates just the same. We’ve met the animal, and it is us.
Discover the surprising similarity between our diseases and those that afflict other animals, including pigs that develop eating disorders. Plus, what the octopus can teach us about national security … how monkeying around evolved into human speech … and the origins of moral behavior in humans.
ENCORE If two is company and three a crowd, what’s the ideal number to write a play or invent a new operating system? Some say you need groups to be creative. Others disagree: breakthroughs come only in solitude.
Hear both sides, and find out why you always have company even when alone: meet the “parliament of selves” that drive your brain’s decision-making.
Plus, how ideas of societies lead them to thrive or fall, and why educated conservatives have lost trust in science.
We all may prefer the goldilocks zone - not too hot, not too cold. But most of the universe is bitterly cold. We can learn a lot about it if we're willing to brave a temperature drop.
A chilly Arctic island is the closest thing to Mars-on-Earth for scientists who want to go to the Red Planet. Meanwhile, the ice sheet at the South Pole is ideal for catching neutrinos – ghostly particles that may reveal secrets about the nature of the universe.
Comet ISON is comet ice-off after its passage close to the Sun, but it’s still giving us the word on solar system’s earliest years.
ENCORE We’ve all had an “oops” moment. Scientists are no exception. Sometimes science stumbles in the steady march of progress. Find out why cold fusion is a premier example why you shouldn’t hold a press conference before publishing your results. Also, how to separate fumbles from faux-science from fraud.
Plus, why ignorance is what really drives the scientific method.
And our Hollywood skeptic poses as a psychic for Dr. Phil, while our Dr. Phil (Plait) investigates the authenticity of a life-bearing meteorite.
After the winds and water of Typhoon Haiyan abated, grief and hunger swept though the Philippines, along with the outbreak of disease. Are monster storms the new normal in a warmer world? Some scientists say yes, and if so, climate change is already producing real effects on human life and health.