PBS' premiere science series helps viewers of all ages explore the science behind the headlines. Along the way, it demystifies science and technology and highlights people involved in scientific pursuits.
Nazi Attack On America (#4210H) Duration: 56:46 STEREO TVPG
Long before 9/11, a far deadlier, little-known attack from the ocean depths struck our shores, lasting three-and-a-half years and claiming 5,000 lives. Now, famed undersea explorer Bob Ballard, discoverer of the Titanic, investigates the wreck of one of the attack craft, a German submarine that lies at the bottom of the gulf just a few miles off New Orleans. U-166 was part of Operation Drumbeat, a highly successful U-boat operation that caught East Coast cities and shipping almost completely unprepared. With state-of-the-art survey gear, Ballard probes the wreck and unravels a dramatic mystery in the official story of the sub's sinking.
Making North America: Origins (#4220) Duration: 56:46 STEREO TVG (Secondary audio: none)
See the epic 3-billion-year story of how our continent came to be. From palm trees that once flourished in Alaska to huge eruptions that nearly tore the Midwest in two, discover how forces of almost unimaginable power gave birth to North America.
Colosseum - Roman Death Trap (#4206H) Duration: 55:41 STEREO TVPG-V
One of the ancient world's most iconic buildings, the Colosseum is a monument to Roman imperial power and cruelty. Its graceful lines and harmonious proportions concealed a highly efficient design and advanced construction methods that made hundreds of arches out of 100, 000 tons of stone. But this building is more than just an architectural giant - in its heyday it was filled with unbelievable spectacles and 50,000 cheering fans. In its elliptical arena, tens of thousands of gladiators, slaves, prisoners, and wild animals met their deaths. Ancient texts report lions and elephants emerging from beneath the floor, as if by magic, to ravage gladiators and people condemned to death. Then, just as quickly, the Colosseum could be flooded with so much water that ships could engage in sea battles to the delight of the crowd. Could these legends be true, or are they just myth?
Now, with extraordinary access to one of the world's most protected world heritage sites, archaeologists and engineers are teaming up to recreate ancient Roman techniques to build a 25-foot lifting machine and trap door system capable of releasing a wolf into the Colosseum's arena for the first time in 1500 years. To do it, they will have to decipher ghost-like impressions left on the crumbling walls of the Colosseum's basement by the original lifts and then transform them into working plans for construction. Do they have what it takes to replicate the innovation and ingenuity of the Romans?
Making North America: Life (#4221H) Duration: 56:46 STEREO TVG
In this episode we unpack the mysteries of how life evolved in North America. From massive volcanic eruptions, that killed three quarters of all species, to the appearance of giant inland seas populated by huge marine dinosaurs, the geology and life of North America have always gone hand in hand. We also reveal the part that geology played in the arrival of humans on the continent, as the appearance of the Panamanian land bridge altered ocean currents, helping bring about the last ice age.
- KQED 9: Wed, Jul 6, 2016 -- 9:00pm Remind me
- KQED 9: Thu, Jul 7, 2016 -- 3:00am Remind me
- KQED World: Fri, Jul 8, 2016 -- 5:00am Remind me
- KQED World: Fri, Jul 8, 2016 -- 11:00am Remind me
- KQED World: Sun, Jul 10, 2016 -- 3:00pm Remind me
- KQED Life: Tue, Jul 12, 2016 -- 8:00pm Remind me
- KQED Life: Wed, Jul 13, 2016 -- 2:00am Remind me
Making North America: Human (#4222#) Duration: 56:46 STEREO TVG
From Ice Age to oil boom, discover the challenges faced and the wealth uncovered as humans take over the continent. How did we turn rocks into riches? And what catastrophic natural disasters could threaten the civilization we've built?
- KQED 9: Wed, Jul 13, 2016 -- 9:00pm Remind me
- KQED 9: Thu, Jul 14, 2016 -- 3:00am Remind me
- KQED World: Fri, Jul 15, 2016 -- 5:00am Remind me
- KQED World: Fri, Jul 15, 2016 -- 11:00am Remind me
- KQED World: Sun, Jul 17, 2016 -- 3:00pm Remind me
- KQED Life: Tue, Jul 19, 2016 -- 8:00pm Remind me
- KQED Life: Wed, Jul 20, 2016 -- 2:00am Remind me
Secrets of the Sun (#3907H) Duration: 56:46 STEREO TVG
It contains 99.9% of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is a staggering 27 million degrees Fahrenheit. It convulses, it blazes, it sings. You know it as the sun. Scientists know it as one of the most amazing physics laboratories in the universe. Now, with the help of new spacecraft and Earth-based telescopes, scientists are seeing the Sun as they never have before and even re-creating what happens at the very center of the Sun in labs here on Earth. Their work will help us understand aspects of the sun that have puzzled scientists for decades. But more critically, it may help us predict and track solar storms that have the power to zap our power grid, shut down telecommunications, and ground global air travel for days, weeks, or even longer. Such storms have happened before-but never in the modern era of satellite communication. Thid episode reveals a bright new dawn in our understanding of our nearest star-one that might help keep our planet from going dark.
D-Day's Sunken Secrets (#4113H) Duration: 1:55:11 STEREO TVPG
On June 6, 1944, the Allies launched the biggest armada in history to invade the Normandy beaches and liberate Europe from the Nazis. In less than 24 hours, more than 5000 ships crossed the English Channel, along with thousands of tanks and landing craft and nearly 200,000 men. Throughout the operation hundreds of ships sank running the gauntlet of mines and bunkers, creating one of the world's largest underwater archaeological sites. Now, Nova has exclusive access to a unique collaboration between military historians, archaeologists, and specialist divers to carry out the most extensive survey ever done of the seabed bordering the legendary beachheads. Dive teams, submersibles, and underwater robots discover and identify key examples of the Allied craft that fell victim to German shellfire, mines and torpedoes. The team uses the latest 3D mapping tools to plot the relics on the sea floor. Highlighting the ingenious technology that helped the Allies overcome the German defenses, "D-Day's Sunken Secrets" unfolds a vivid blow-by-blow account of the tumultuous events of D-Day and reveals how the Allies' intricate planning and advanced technology was vital to assure the success of the most ambitious and risky military operation ever launched.