Making a Katana from titanium or how I made a Katana sword from titanium, to be honest, I myself did not figure out the name. I'll leave this question to the viewer's judgment, to share your opinion ...

Seki Nobuhide Sensei, a martial arts and katana instructor, rates portrayals of samurai battles in movies and TV shows. He explains why samurai employed different types of spears in battle in "Shogun.