The reference link for the slow-motion video of stacking ingots is as follows: Slow-motion video of stacking ingots

First fold the paper in half, as shown in the picture below.

Fold down two-thirds of the way, as shown in the picture below.

Then fold the remaining part downward to overlap with the bottom layer, as shown in the picture below.

Fold the upper right corner and upper left corner downward respectively, as shown in the picture below.

Fold the lower right corner and lower left corner upward respectively, as shown in the picture below.

Just arrange it into the shape of ingot, as shown in the picture below. ?

Yuanbao is a kind of currency in ancient times, made of precious gold or silver. Generally, silver is the most common and gold is rare. In the history of Chinese currency, gold and silver were officially called "yuanbao" starting in the Yuan Dynasty. However, as early as the beginning of the Tang Dynasty, when Kaiyuan Tongbao came into being, people had the meaning of being large and valuable, and pronounced it as "Kaiyuan Tongbao". In the Yuan Dynasty, gold and silver coins were called "Yuanbao", which meant the treasures of the Yuan Dynasty. Gold was called Jin Yuanbao, and silver ingots were called Silver Yuanbao. They had both political connotations and were also common names for gold and silver currencies.

The combination of origami and natural science has not only become a teaching aid in the School of Architecture, but also developed origami geometry as a branch of modern geometry. Origami is both a toy and a thinking activity; it is a symbol of peace and remembrance, and it is also a way of pastime. Origami is an art activity that involves folding paper into various shapes.

Origami is not just limited to using paper. Origami enthusiasts around the world use a variety of materials such as tinfoil, napkins, acetate sheets, etc. while adhering to folding specifications.