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English archers had their longbows, Old West sheriffs had their six-guns, but Japan’s samurai warriors had the most fearsome weapon of all: the razor-sharp, unsurpassed technology of the katana, or samurai sword. In this program, NOVA probes the centuries-old secrets that went into forging what many consider the perfect blade. Fifteen traditional Japanese craftsmen spent nearly six months creating the sword that NOVA follows through production, from smelting the ore to forging the steel to sharpening the blade to a keen edge capable of slicing through a row of warriors at one swoop.

بازیگران مهمان: Rob Tinworth

Experts investigate how a mysterious "second genome" helps determine our biological fates.

بازیگران مهمان: Neil Ross

Can anyone run a marathon? How do you run 26.2 miles if you have trouble making it around the block? With good coaching, discipline, and lots of group support, as NOVA shows when it follows 13 generally sedentary people through a training regimen designed to prepare them for an ultimate test of stamina and endurance. Produced in cooperation with the Boston Athletic Association®, which granted NOVA unprecedented access to the 111th Boston Marathon®, and Tufts University, "Marathon Challenge" takes viewers on a unique adventure inside the human body, tracking the physiological changes that exercise can bring about.

بازیگران مهمان: لیو شریبر

On October 4, 1957, the Space Age dawned with the red hue of the Communist flag when the Soviet Union launched the first artificial satellite. Sputnik I stunned the world and spurred a surge in science education and innovation that changed our world forever. But was Sputnik I really a shock to America's leaders, and how close was the U.S. to getting into space first? NOVA draws on previously classified documents to tell the real story behind the opening chapter in the space race.

بازیگران مهمان: Neil Ross

Using courtroom reenactments based on transcripts and interviews with those present, NOVA looks at the events of the federal case of Kitzmiller v. Dover School District.

بازیگران مهمان: جی او. ساندرس

The Mofu people of northern Cameroon have a close relationship with insects, in particular, the red driver ants which they use to combat termites.

بازیگران مهمان: Neil Ross

In the early 1950s, epic battles unfolded in the skies over North Korea as American and Russian fighters faced off in history's first jet war. This program explores the Korean War's aerial tactics, technology, and grim aftermath for downed pilots, many of whom disappeared without a trace. The Korean War pitted the two most advanced fighters of their day, the American F-86 Sabre and the Soviet MiG-15, in furious air battles in North Korea's notorious "MiG Alley." With the help of dramatic reconstructions, rare archival footage, and interviews with veteran American and Soviet pilots, NOVA puts viewers in the cockpit to experience the lethal split-second duels that erupted in MiG Alley.

بازیگران مهمان: جی او. ساندرس

Our mastery of cold is something we take for granted, whether it s air conditioning and frozen food or the liquefied gases and superconductivity at the heart of cutting-edge technology. But what is cold? How do you achieve it, and how cold can it get? This two-part NOVA special brings the history of this frosty fascination to life with brilliant dramatic recreations of high moments in low-temperature research and the quest for ever-lower notches on the thermometer. The first hour, The Conquest of Cold, opens in the 1600s when the nature of cold and heat was a complete mystery. Were they different aspects of the same phenomenon? The experiments that settled these questions helped stoke the Industrial Revolution.

بازیگران مهمان: Neil Ross

Our mastery of cold is something we take for granted, whether it s air conditioning and frozen food or the liquefied gases and superconductivity at the heart of cutting-edge technology. But what is cold? How do you achieve it, and how cold can it get? This two-part NOVA special brings the history of this frosty fascination to life with brilliant dramatic recreations of high moments in low-temperature research and the quest for ever-lower notches on the thermometer. In the second hour, The Race For Absolute Zero dramatizes the titanic rivalry between Scottish researcher James Dewar and Dutch physicist Heike Onnes, who plunged cold science to the forbidding realm at which oxygen and then nitrogen turn into liquids. The race continues today as scientists pioneer super-fast computing near absolute zero the ultimate chill of -459.67° F where atoms slow to a virtual standstill.

بازیگران مهمان: Neil Ross

For 25 centuries the Parthenon has been shot at, set on fire, rocked by earthquakes, looted for its sculptures, almost destroyed by explosion, and disfigured by well-meaning renovations. It has gone from temple, to church, to mosque, to munitions dump. What could be next? How about a scientific search for the secrets of its incomparable beauty and astonishingly rapid construction? With unprecedented access, NOVA unravels the architectural and engineering mysteries of this celebrated ancient temple.

بازیگران مهمان: جی او. ساندرس، Κώστας Μπάρας، Alkibiadis Bakogianis، Argirios Bangelis

Millions remember the countdowns, launchings, splashdowns, and parades as the U.S. raced the USSR to the moon in the 1960s. But few know that both countries also ran parallel space programs, whose covert goal was to launch military astronauts on spying missions. With investigative journalist James Bamford, NOVA delves into the untold story of this top-secret space race, which might easily have turned into a shooting war in orbit.

بازیگران مهمان: جی او. ساندرس

At a research site in Fongoli, Senegal, a female chimpanzee breaks off a branch, chews the end to make it sharp, and then uses this rudimentary spear to skewer a tasty bush baby hiding inside a hollow tree. It’s an astonishing breakthrough for primate researchers—the first time anyone has documented a chimpanzee wielding a carefully prepared, preplanned weapon. But it's only the latest in a slew of extraordinary new findings about ape behavior. The more researchers learn about the great apes—chimpanzees, bonobos, gorillas, and orangutans—the more evidence they find of creative intelligence. What, then, is the essential difference between them and us? "Ape Genius," a NOVA-National Geographic special, explores that provocative question and examines research that is illuminating the ape mind. Bit by bit, investigators are finding an explanation for why the non-human great apes never made the breakthrough into a human-style culture that builds on the achievements of previous generations.

بازیگران مهمان: David Slavin

A look at the 2002 discovery of a four-winged crow-sized dinosaur fossil dubbed Microraptor, which has rekindled the scientific debate over the origins of flight. Included is a wind tunnel test of a "flight-ready" model of the 130 million-year-old Microraptor.

بازیگران مهمان: Lance Lewman

The ancient Maya civilization of Central America left behind an intricate and mysterious hieroglyphic script, carved on monuments, painted on pottery, and drawn in handmade bark-paper books. For centuries, scholars considered it too complex ever to understand—until recently, when an ingenious series of breakthroughs finally cracked the code and unleashed a torrent of new insights into the Mayas' turbulent past. For the first time, NOVA presents the epic inside story of how the decoding was done—traveling to the remote jungles of southern Mexico and Central America to investigate how the code was broken and what Maya writings now reveal.

بازیگران مهمان: جی او. ساندرس

Tom and Ray Magliozzi of NPR's Car Talk, explore new technologies and ideas for the future of automobiles.

بازیگران مهمان: جان لیسگو، Ray Magliozzi، Tom Magliozzi

In this award-winning documentary, a difficult journey that begins in hopelessness and shame for thousands of women in Ethiopia ends in a productive new life. The film tells the personal stories of rural women who make their way to Ethiopia's capital, Addis Ababa, seeking treatment for obstetric fistula, a life-shattering complication of childbirth. Filmed in a starkly beautiful landscape, the documentary juxtaposes the isolated lives of village women who are outcasts because of their medical condition, with the faraway hospital that offers a miracle after a long and arduous trek—a "walk to beautiful."

At age 78, E.O. Wilson is still going through his "little savage" phase of boyhood exploration of the natural world. In "Lord of the Ants," NOVA profiles this soft-spoken Southerner and Harvard professor, who is an acclaimed advocate for ants, biological diversity, and the controversial extension of Darwinian ideas to human society. Actor and environmentalist Harrison Ford narrates this engaging portrait of a ceaselessly active scientist and eloquent writer, who has accumulated two Pulitzer Prizes among his many other honors. Says fellow naturalist David Attenborough: "He will go down as the man who opened the eyes of millions 'round the world to the glories, the values, the importance of—to use his term—biodiversity."

بازیگران مهمان: هریسون فورد، E.O. Wilson