NOVA | PBS

Zeroing in on Surveillance Video

Dodany: 13 czerwca 2013

After a crime or terrorist attack, authorities looking for the perpetrators may need to review many hours of surveillance video—in just minutes. But how can they speed up the video without speeding...

New Ways to Use Drones

Dodany: 30 maja 2013

Thousands of drones could be in commercial use in the U.S. within a few years. These unmanned aerial vehicles may assist everyone from farmers and firefighters to doctors and utility workers. But...

Deadly Crocodiles Down Under

Dodany: 23 maja 2013

The residents of Australia's Northern Territory share their land with one of the deadliest predators on the planet—the saltwater crocodile. Getting humans and these fearsome reptiles to coexist...

Dual Epidemics Threaten Koalas

Dodany: 16 maja 2013

Australia's koala population has been hit hard by two rapidly spreading diseases: chlamydia (a sexually transmitted infection) and a retrovirus similar to HIV. Scientists are working to develop...

Australia's "Magnetic" Termites

Dodany: 9 maja 2013

In Australia's Northern Territory, termites build mounds that are tall, thin, and aligned like compass needles. How and why the insects do this is not entirely clear. One entomologist offers some...

Experts Debate Dinosaur Stampede

Dodany: 2 maja 2013

Millions of years ago in what is today Australia's Outback, a herd of dinosaurs left behind footprints in what has been interpreted as a stampede to escape a predator. A young researcher now...

Mexico Considers Gum Tax

Dodany: 25 kwietnia 2013

Discarded chewing gum is a common eyesore, and removing it from city streets and sidewalks can be costly. A Mexican congressman wants to solve the problem by borrowing a concept widely used in...

Engineering Extra Senses

Dodany: 21 marca 2013

Sight, sound, touch, smell, taste. We interact with the world and navigate through it thanks to our senses. But what if we could add to that repertoire? A British scientist and a small group of...

Packaging You Can Eat

Dodany: 14 marca 2013

Have you ever eaten a cocktail? Held a mouthful of juice in your hand? A team of chefs, chemists, and designers has come up with a way for you to do just that. They've created a biodegradable shell...

Boosting Kids' Brain Power

Dodany: 1 marca 2013

An Oxford University researcher will soon test whether applying an electric current to part of the brain can help children learn math—an effect previously demonstrated in adults. Parents are...

Gamers and Genomics

Dodany: 21 lutego 2013

People around the world spend an estimated 3 billion hours playing computer games every week. That might seem like a colossal waste of time, but scientists are starting to harness some of that...

Magnetic Fish Hooks Save Sharks

Dodany: 7 lutego 2013

It sounds like a plot device from a comic book: a simple substance that can make the powerful weak. But it's not kryptonite. An enterprising chemist says he's found a substance—several, in...

Elements in the Ocean

Dodany: 31 stycznia 2013

There's a lot more to the oceans than salt and water. Many other ingredients make up the rich broth that sustains marine life and helps regulate the Earth's climate. But where do those ingredients...

Sandy's Warning

Dodany: 17 stycznia 2013

Hurricane Sandy has renewed the debate over climate change in the United States, and two high-profile reports released since the storm have made it clear that without big changes we're headed for...

Climate Change and Sandy

Dodany: 3 stycznia 2013

Could climate change be contributing to extreme weather events like Hurricane Sandy? Jennifer Francis, a climatologist at Rutgers University in New Jersey, believes that may be the case. In fact,...

The Big Deal with CERN: Stephon Alexander

Dodany: 1 listopada 2011

Cosmologist Stephon Alexander says he'd be surprised if we didn't find the Higgs particle. Podcast produced by David Levin and Rima Chaddha, with audio editing by David Levin. NOVA is produced by...

Space and Time Explained: Jim Gates

Dodany: 16 września 2011

Physicist Jim Gates says that even after you take all the matter out of the universe, space still wouldn’t be empty. Podcast produced by David Levin. NOVA is produced by WGBH in Boston. Funding for...

Space and Time Explained: Sean Carroll

Dodany: 9 września 2011

To most of us, time seems like a one-way street, moving from past to future. But physicists like Sean Carroll have a different way of thinking about it. Podcast produced by David Levin. NOVA is...

Rebuilding on Ground Zero

Dodany: 1 września 2011

In the months after 9/11, New York City faced a difficult decision. What should it do with the site where the twin towers once stood? For architecture critic Paul Goldberger, there was only one...

Hiding in Plain Sight

Dodany: 14 lipca 2011

In this podcast, marine biologist Roger Hanlon explains why octopuses are masters of camouflage. Podcast produced by David Levin. Interview by Susan Lewis. NOVA is produced by WGBH in Boston....