The suspended rope bridge conceived by the protagonist is actually a rope tied to both sides of the river for ants to pass.

If there is a prototype of such a thing as a suspended rope bridge in human society, it is probably these two.

One of them is the flexible suspension bridge.

Suspension bridges, also known as suspension bridges, are composed of suspension cables, bridge towers, booms, anchor ingots, stiffening beams and bridge deck systems. Suspension bridges can be divided into two types: flexible and rigid. The bridge deck of the flexible suspension bridge is generally not provided with stiffening beams, so the stiffness is small, and under the load, the bridge deck will produce S-shaped deformation with the change of the suspension shape. However, its structure is simple, and it is generally used as a temporary bridge, and the ancient suspension bridge enemy suspension rope is mostly rope.

The second is the zipline.

Zipline is the primitive tool for crossing the river, called collision in ancient China, Ming Cao Xue's "Shu Zhong Guangji" recorded in the "bridge of the collision", roughly refers to the zipline. Use two or one rope to tie to trees or other fixed objects on both sides of the river, one end is high and the other end is low, forming a high and low inclination, and there are seats or chains for riding on the suspension cable, and the passenger can quickly slip through it with the help of gravity.

Zipline is the main means of transportation for ethnic minorities in southwest China, living in the Jinsha River, Nu River, Lancang River and other ethnic groups such as Tibet, Susu, Nu, Dulong and other ethnic groups, due to the mountainous terrain and many rivers, often use a simple structure of zipline transition.

Abroad, the Peruvian Andes in South America also have rugged terrain, and the Incas who live here also use ziplines as a means of crossing rivers. Ziplines can be used to cross not only people, but also goods, livestock, etc.

The suspended rope bridge that the protagonist intends to use is structurally similar to a zipline, with only one rope hanging between the two banks. However, it is not a slip to move in it, but a walk-based approach like a suspension bridge, which can be said to be a combination of the characteristics of the two.

After the plan is completed, the protagonist immediately returns to the "Waterfront City" and begins to direct the worker ants to weave ropes.

In the past, ants would also use natural plant fibers, which were generally only used as nest bedding, or used a single loose fiber as a rope, but did not know how to weave.

The protagonist teaches the simple weaving skills to the big-headed ants, and now they are able to weave simple finished products such as double-strand rope and three-strand rope. Theoretically, cloth with interlaced warp and weft can also be woven, but at present, the protagonist does not have the need for this - the ants do not wear clothes, and they do not need cloth for the time being.

Weaving is the process of processing the branches, leaves, stems, and bark of plants and weaving them by hand.

Weaving is also one of the oldest handicrafts of mankind. According to the Book of Changes, in the Paleolithic Age, human beings used plant bast to weave a net, which contained stone balls and threw them to hunt animals. Knitting or evidence has been unearthed at sites such as Banpo in Xi'an, Miaodigou, Sanli Bridge, and Hemudu in Yuyao, Zhejiang. From the Zhou Dynasty to the Tang Dynasty, it was very common to weave straw mats with pu grass and rush grass. Nowadays, rattan weaving in Fujian and Guangdong, willow weaving in Cangzhou, Hebei, and wheat straw weaving in Puzhou, Shanxi are all famous handicrafts.

Braided rope is the simplest of the weaving techniques and is not difficult to master. Immediately after the protagonist gives the order, a large number of worker ants begin to work on it.

The workers prepare their workplaces first. Since this time it was necessary to weave a rope thirty or forty meters long, a lot of space was required. The workers prepared three larger nest rooms next to each other. The middle room is used as a weaving workshop, the left one is used as a raw material storage room, and the right one is used as a finished product storage room.

The raw materials that the worker ants stack in the raw material stacking room are a variety of natural plant fibers, mainly a variety of natural hemp, including: hemp, flax, jute, green flax and ramie, which are all annual or perennial herbaceous dicots

Ants dig up these plants in the summer and autumn, and then invest a lot of labor to separate the bast fibers from their cortex and make them into spare raw materials.

These raw material types are more diverse, and there are many kinds of hemp, and different hemp types have different shapes and uses. For example, hemp, flax, Luobuma and other cell walls are not lignified, and the thickness and length of the fiber are similar to that of cotton, which can be used as textile raw materials and woven into various fabrics; However, jute, hibiscus and other bast fibers have lignified cell walls and short fibers, which are only suitable for spinning ropes and packaging sacks.

However, what the protagonist needs now is a rope with low technical content and low raw material requirements, so all kinds of hemp are enough to do it, and the amount of each raw material is not much, and it is also mixed together. The protagonist simply didn't pick and was ready to weave a mixed hemp rope.

The way of weaving hemp rope is rubbing.

This method involves tying a knot at the beginning of the loose hemp, sitting on a knotted section of rope with the buttocks, and then rubbing the rope out with both hands, or rubbing the rope out of the thighs with your hands, and then adding hemp to grow the hemp rope. In some areas, auxiliary tools such as hemp drums are also used when rubbing hemp rope.

The size of the ants obviously does not allow for the use of rubbing. Fortunately, being small has the advantage of being small, and they have their own set of methods that suit them.

In the weaving workshop, the protagonist first uses his divine powers to help the worker ants bury a wooden stick, and then the worker ants tie the top of five hemp sticks to the wooden stick in a knot.

Subsequently, five clever and dexterous worker ants each clamped a tied hemp fiber, at a clockwise fixed speed and direction, like a dance between the companion and the fiber, the rope is like a living snake, intertwined with each other, the appearance of the wrapped twine gradually shows a spiral library, and the hemp rope is also slowly woven into a small section of the shape.

The weaving workers are constantly moving forward to adjust where they bite the fibers to accommodate the ever-lengthening hemp rope. When a hemp fiber is used up, the worker ant will leave the group, and another worker ant who has been waiting by the side will immediately carry a new hemp fiber to fill in with it. There are still four worker ants on standby.

The other four worker ants who were braiding the rope also paused, and after the new worker ants and hemp fibers were in place, the four worker ants continued to work, and when the new hemp fibers were fixed by the other four respectively, the new worker ants also officially joined the group dance like weaving work.

Thus began the weaving in earnest, and progressed in a dance-like rhythm and melody. The raw materials are constantly moved into the weaving workshop, and the finished hemp rope is piled up to a certain length, and then transported to the finished product stacking room on the right, where it is coiled together for preservation.

After all, ten worker ants can weave a decimeter-long hemp rope per hour, which is not fast. If you work three shifts 24 hours a day, you can weave more than two meters a day, or you can complete a sufficient length of hemp rope in less than 20 days.

While the rope is being braided, the protagonist still has one more thing to do.