You need the Flash Player version 8.0.0.0 or higher and a JavaScript enabled browser to view this site

What the Ancients Knew: Samurai Sword Making

Related Article: Learn more about materials science.

The Science Channel's series "What the Ancients Knew," follows host Jack Turner as he learns about the ancient art of sword making, passed down through generations in Japan.

browse videos in materials science

Assembly Line: Crayola Crayons (4:12)

This Crayola crayon facility makes 14.2 million crayons each day. Learn more about Crayola crayons in this video from Discovery.

How Nanotechnology Works (2:19)

Nanotechnology deals with materials and machines on an incredibly tiny scale. To learn more about nanotechnology, check out this HowStuffWorks video.

GE's Photovoltaic Technology Helps Grow Vineyard (1:44)

Watch this video about GE's photovoltaic on HowStuffWorks. GE's photovoltaic are helping Doug Shafer and his Napa Valley vineyard to reduce their dependence on energy. See how photovoltaic work in this video from GE.

Super Speedo Swimsuit (1:42)

Watch this Reuters video demonstrating how Speedo and NASA engineers tested and manufactured the world's fastest swimsuit for the U.S. Olympic Team. Olympic Record holder Michael Phelps is impressed that the suit produces almost zero drag.

Are Toxic Chemicals in Lipstick and Baby Bottles? (4:14)

Watch this Reuters videos discussing whether there are toxic chemicals in cosmetics and household items such as lipstick, shampoo and even baby bottle nipples. The FDA is studying claims of chemical toxicity that lead to increased risks of cancer.

recently added

How It's Made: Neon Sign Creation (2:52)

On Discovery Channel's "How It's Made," learn how neon signs are made.

How It's Made: Votive Candle Making (1:09)

On Discovery Channel's "How It's Made," learn about the process in which votive candles are made using an automated molding process in a factory.

How It's Made: Perfect Book Binding (2:30)

In traditional book binding, pages and covers are sewn together; whereas in perfect binding, the same components are glued together. Learn more about perfect binding on The Science Channel's "How It's Made."

How It's Made: Commercial Book Binding (1:22)

Commercial book binding in the modern age has evolved into a highly mechanized process. Watch and learn how books are bound on Discovery Channel's "How It's Made."

What the Ancients Knew: The Invention of Steel (1:09)

The Science Channel's series, "What the Ancients Knew," explores the development of steel and how it was used in ancient civilizations and now in modern times.

What the Ancients Knew: Indian Metal craft (1:48)

See how blacksmiths in India still carry on the traditional methods from ancient times for creating sickles and swords. Learn more with host Jack Turner on The Science Channel's "What the Ancients Knew."

What the Ancients Knew: Sword Making (0:41)

On The Science Channel's series, "What the Ancients Knew," host Jack Turner explains how the ancient Japanese would create beautiful swords using heated steel. Learn more in this clip.

What the Ancients Knew: Glass Blowing (1:57)

Ancient Romans first used clay cups, but they soaked up taste and retained odors. So the Romans created the art of glass blowing for glass cups, making a whole new industry. Learn more on The Science Channel's "What the Ancients Knew."

What the Ancients Knew: The Makyon (1:13)

On The Science Channel series, "What the Ancients Knew," host Jack Turner takes us inside a modern application that checks polished silicon wafers for any imperfections, known as the Makyon.

What the Ancients Knew: Samurai Sword (0:39)

Japanese sword makers have their own secret formula, creating a beautiful hard blade with willow-like flexibility. Learn more about the art of sword making with host Jack Turner from The Science Channel's "What the Ancients Knew."