- The thinner edge cools and contracts much faster than the thicker back, causing the blade to bend forward
- As the thicker back cools, the blade bends back to its original shape
- Bending back introduces an incredible pretension to the already cooled edge, strengthening it
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As a big fan of the Yamato schools, it's a real pleasure to see a Hosho school sword like this
The surface of most swords has a "wood grain" pattern, but the Yamato schools are known for their masame, or long, continuous lines that flow along the length of the sword.
Probably not great structurally-speaking, since there's a risk of delamination, but definitely a striking appearance!
https://www.aoijapan.com/katanamumei-attributed-to-den-hosho-nbthk-tokubetsu-hozon-token/
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The first debut of HoloJustice starts in two hours!!
https://www.youtube.com/live/1OFWd11RsGo
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Them: So what do you do on the computer all day?
Me: Idk I guess I just kind of like https://www.youtube.com/watch?v=Aw_O2vDoDrM