From tip to tail, this one's worth showing in full. I know I can't quite make it in one of our periods (48 minutes last year, no guess how long this year), but it would be well worth two days. Brilliant stuff combining art, science, history, so much. Wow.
New video posted as of 7/30/14 - All times should be modified by subtracting about 20 seconds. For example, 11:30 listed below is more like 11:10 in this video.
My highlights...
- 11:30 - switching from BCC to FCC iron, paralleling the iron wire demo and showing how steel forms from the iron
- 12:45 - Thoe Gray's tour of the periodic table (love his book, app, poster, all of it)
- 15:00 - Charpy hardness testing explanation - toughness vs hardness
- 22:00 - The breaking up of the furnace is just gorgeous to watch...brilliant and blinding and beautiful. Wow...
- 23:00-25:30 - Could be skipped if need be, compares Japanese samurai films to American westerns
- 31:10 - cold working, work hardening of copper and how that relates to crystal defects in the sword
- 33:30-36:00 - Also could be skipped as it doesn't cover any science, just showing us how impressive the swords and swordsmen are.
- 36:40 - Differences in types of steel - high- and low-carbon steel - and how they are combined to make a better sword
- 40:50 - Heat treating, quenching and what it does to high- and low-carbon steels
- 44:00 - Differential thermal expansion, like a bimetallic strip
- 45:30-47:00 - Skippable...how to use the sword properly in fighting
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