Season 39, Episode 12 Secrets of the Viking Sword
First Aired: October 10, 2012
The secrets behind the design and construction of the Vikings' Ulfberht sword, which was made between A.D. 800-1000, are revealed by master blacksmith Ric Furrer, who reverse engineers the sturdy weapon in the Season 40 premiere. Experts have also wondered where the high-carbon steel used in the blade came from, given that it wasn't used elsewhere in Europe at the time. Clues unearthed from Viking graves, however, point to an answer: traders who ventured to Persia or Afghanistan.
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- Premiered: March 3, 1974
- Rating: None
- Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)