00:00 A little girl from Hiroshima named Sadako Sasaki folded a thousand paper cranes as a symbol of her wish for world peace before she died from leukemia caused by radiation exposure, and her classmates folded the remaining cranes in her honor.

04:45 A peace memorial in Hiroshima has been created with cranes folded by schoolchildren in honor of Sadako Sasaki's wish for world peace, and origami is seen as a meditative and transformative art form.

09:13 Origami is a transformative art form where a single sheet of paper is folded to create different shapes or representations without the use of glue or cutting.

14:04 Origami models can be created without the need for imagination, as there are step-by-step designs available, and there is even a style of origami that was created for people with physical impairments.

18:47 Origami originated in China as a luxury item, but it wasn't until Buddhist monks introduced paper to Japan in the sixth century that folding paper became more widespread and interesting designs started to emerge, eventually leading to the popularization of origami worldwide by Akira Yoshizawa in the 1930s.

23:46 Akira Yoshizawa, the preeminent origami artist, made at least 50,000 different models, never sold any of them, and instead lent them out for exhibitions or gave them as gifts.

28:41 Origami has various types and categories, including modular origami which uses multiple sheets of paper to create larger pieces, and action origami which allows for movement in the folded models.

33:21 Origami can be made out of various materials, such as dollar bills, sticky notes, and even jewelry, and there are different styles and techniques, including tessellations, which create repeating 3D patterns using just one sheet of paper.

37:55 Technical origami involves highly detailed and precise folding techniques, often depicted in diagrams that show all the creases and folds in the paper, but not the specific order in which they should be done, which can be unnerving for some, while others argue that technical origami pushes the boundaries of what can be done with paper and can be incorporated into larger art projects.

42:34 Origami paper, such as commie or washi, is specifically designed for origami and paper folding, with commie paper being thin, crisp, and easy to fold, while washi paper is thicker and better for wet folding techniques; origami also has practical applications in industries such as manufacturing and can be used as a teaching tool for geometry in classrooms.

47:52 Origami can be a fun and accessible hobby that can be enjoyed with simple materials like copy paper.