Secrets of the Samurai Sword
Episode: 35x01 | Airdate: Oct 9, 2007
Examine the thousand-year-old art and science behind the making of a Japanese warrior's key weapon.
Episodes
Ghost in Your Genes
Episode: 35x02 | Airdate: Oct 16, 2007
Experts investigate how a mysterious "second genome" helps determine our biological fates.
Marathon Challenge
Episode: 35x03 | Airdate: Oct 30, 2007
Explore what it takes—physically and mentally—for novice runners to make it through a classic test of endurance.
Sputnik Declassified
Episode: 35x04 | Airdate: Nov 7, 2007
Top-secret documents rewrite the history of the famous satellite and the early space race.
Judgment Day: Intelligent Design on Trial
Episode: 35x05 | Airdate: Nov 13, 2007
Science is 'Exhibit A' in a landmark trial on the teaching of evolution.
Master of the Killer Ants
Episode: 35x06 | Airdate: Nov 20, 2007
The Mofu people of Cameroon rely on an unlikely ally—a driver ant—to protect their homes and crops.
Missing in MiG Alley
Episode: 35x07 | Airdate: Dec 18, 2007
What happened to American pilots shot down over Korea half a century ago?
Absolute Zero: The Conquest of Cold (1)
Episode: 35x08 | Airdate: Jan 8, 2008
The story of the harnessing of cold and the race to reach the lowest temperature possible. (Part 1 of 2)
Absolute Zero: The Race for Absolute Zero (2)
Episode: 35x09 | Airdate: Jan 15, 2008
The story of the harnessing of cold and the race to reach the lowest temperature possible. (Part 2 of 2)
Secrets of the Parthenon
Episode: 35x10 | Airdate: Jan 29, 2008
How did the ancient Athenians build this near-flawless icon of Greece's golden age?
Astrospies
Episode: 35x11 | Airdate: Feb 12, 2008
An elite corps of secret U.S. astronauts is trained to gather intelligence on the Soviets during the Cold War.
Ape Genius
Episode: 35x12 | Airdate: Feb 19, 2008
Experts zero in on what separates humans from our closest living relatives.
The Four-Winged Dinosaur
Episode: 35x13 | Airdate: Feb 26, 2008
Surprising fossils from northeastern China spur a debate over how birds evolved.
Cracking the Maya Code
Episode: 35x14 | Airdate: Apr 8, 2008
The story behind the centuries-long decipherment of ancient Maya hieroglyphs
Car of the Future
Episode: 35x15 | Airdate: Apr 22, 2008
Join the 'Car Talk' guys as they hit the road in search of a new breed of clean, fuel-efficient vehicles.
A Walk to Beautiful
Episode: 35x16 | Airdate: May 13, 2008
A powerful story of healing and hope for women in Ethiopia devastated by childbirth injuries
Lord of the Ants
Episode: 35x17 | Airdate: May 20, 2008
Naturalist E.O. Wilson's fascination with little creatures has led him to some very big ideas.
