The original waist machine uses a movable beating plate, and each beating has a process of picking up, extending into the warp opening, and putting down the beating plate, and the two are compared. Judge the merits.

The original waist machine needs to tighten the warp with a clamping stick on the waist, and in the process of weaving and weaving, the waist of the person has to be forced, which can easily cause fatigue.

The Han Dynasty bias loom uses a reel to clamp the warp, and uses a rotating reel to receive, the user only needs two hands to carry out the shuttle and pull the "reed" for weft beating operation when weaving, and does not need waist output.

This is the biggest difference between these two types of textile machines.

With the sound of clanging, Xiao Ling has begun to operate the loom to work: the shuttle wears the weft, pulls the reed to beat the weft, steps on the pedal of the heald to lift the heald, and then repeats the shuttle, beats the weft, and releases the heald pedal to make the loom return to the state of natural opening.

This back-and-forth operation is completed, and the weft threads of the entire coil of cloth on the warp line grow two threads in front of it, and then repeat the previous movement, and so on.

Over time, the cloth on the rack gradually "grows" and becomes longer, and when the position of the weft "grows" near the opening of the two sets of warp lines during weft beating, it is necessary to turn the reel for rewinding.

Looking at Ling'er, who was excitedly operating the loom, Wang Tian had a vague worry in his heart, he was worried that once Ling'er was excited, he would lose patience with the boring work of weaving.

Then Wang Tian's worries seemed a little redundant, and the sound of weaving continued until before dinner, and under Wang Tian's urging, Xiao Ling reluctantly left the loom.

On the temporary scroll, which had been wound with several circles of woven fabric, Wang Tian took the fabric off the scroll, flattened it and examined it carefully.

Xiao Ling should have started weaving after noon, and in 4 hours, the total length of this cloth has reached more than two meters.

At a glance, the warp and weft lines on the cloth are still very obvious, which should be related to the fineness of the fiber of the rope grass.

It seems that the fiber of this rope grass is still relatively rough, and Wang Tian considered using the method of beating with a heavy object after steaming to soften the fiber structure to increase its softness.

Wang Tian lifted the cloth above his head and looked at the sunset, the light transmittance was good, and the density of the warp and weft of the cloth could be increased a little.

"Brother Tianzi, is my cloth well woven?" Xiao Ling's voice sounded behind Wang Tian.

"First-class great, Ling'er, do you like weaving?" king

Tian carefully asked the question he was most concerned about.

"I like it, this is interesting, Brother Tianzi, you see, I knitted such a long section in one afternoon."

Xiao Ling happily replied, in her opinion, the cloth in her hand was made by spinning the thread by herself, and then made a shuttle and a shuttle, this kind of creative happiness made her forget the boredom and tedium in it.

Creation and a sense of accomplishment are the best motivation for Xiaoling to persevere.

When Xiao Ling said this, Wang Tian's eyes stared at her intently, and from the smile and look in her gaze, Wang Tian confirmed that what he said was indeed true.

The stone in my heart finally landed, and the manufacture of cloth was led by a leader who was smart and dexterous and interested in it, and the future development did not need to be seen.

For Ling'er's ability, Wang Tian is still quite sure, which can be known from the variety of bamboo tools in the tribe now.

"Ling'er, after weaving these yarns you have spun, don't spin hemp first, I found that these hemp materials are still too hard."

"Tonight, let's boil the extracted hemp in boiling water, smash it with a stick, and then spin it tomorrow after drying."

For Wang Tian's request, Xiao Ling naturally obeyed his words. Wang Tian continued: "Ling'er, how about I make you a piece of clothing for this piece of cloth you have knitted?" ”

"Really? May I? Xiao Ling's eyes flashed with a bright color, the materials in the tribe were all distributed by Wu. That's why Xiao Ling asked.

As the first sackcloth in the primitive age tribe, and rewarding it to its maker, this decision Wang Tian can still take it.

After dinner, the group continued to weave bamboo mats to be used as templates, and bamboo poles to be cut off as beams with small saws.

Today is the first night of firing in the red brick kiln and lime kiln, and people must be left in front of the two kilns to take care of the fire, so that the firing can be carried out 24 hours a day.

Although there was the protection and warning of the rejection of horses, in order to ensure safety, 100 meters in front of the two kilns, Wang Tian asked people to arrange another warning line.

There were also six kiln guards, divided into three groups for rotation, and the night station was between the two kilns, and four bonfires were lit to ensure that nothing went wrong, and after this period of time, there was no need to sleep outside the cave.

Thinking of time, Wang Tian's eyes fell on the sundial in the upper right corner of the observation deck, a simple timer made by himself, which can accurately measure the time at different moments.

The sundial has a fixed needle and a disc engraved with numbers and indexes, which is divided into many parts, and the different times can be distinguished by looking at the position of the sun's shadow on the disk. It is timed to the nearest quarter (fifteen minutes).

With the sundial, Wang Tian was able to know the exact time of the day when there was a sun, and then based on this, he made an hourglass timer.

In this way, whether it is cloudy or rainy, you can clearly know the time of day.

But what about the specific months of the year? Wang Tian wanted to lead the tribe into the farming civilization as soon as possible, and the importance of Tianshi to the farming civilization is self-evident.

Agricultural production activities need to be guided by the calendar, when you can sow seeds, when you can top dress, when you can harvest, and when you can collect.

Wang Tian did not understand why China had two sets of calendars, but when he crossed over and thought about developing agriculture, he finally realized the importance of the lunar calendar.

An astronomical instrument that appeared earlier than a sundial is called a "Guibiao", which is an astronomical instrument that uses the law of shadow movement under the sun to determine the length of the 24 solar terms and the return year.

The table is actually divided into two parts, the "table" is a pole standing upright on the flat ground, and the "table" is a ruler that is perpendicular to the table in the north-south direction, and they together form the "table".

At noon, the shadow is the shortest, falling on the "Gui" face, pointing due north. From the period of change in the length of the noon shadow, the length of a return year can be determined, and the "24 qi" can be deduced.

These are all the astronomical knowledge that Wang Tian remembers, but he does not know exactly how the 24 solar terms were determined.

He remembers that when he was in junior high school, his teacher said that the winter solstice is the shortest day of the year, and the summer solstice is the longest day of the year.

In other words, China's 24 solar terms are actually calculated according to the solar calendar, so it is easy to do.

At least in a year, Wang Tian can still find out the day of the winter solstice or the summer solstice.

Wang Tian remembered that the Gregorian calendar date corresponding to the winter solstice was December 21 or 22.

As long as the length of the shadow of the "table" at noon is recorded every day, it is possible to determine which day is the winter solstice; The solar calendar is also determined, and there will be no difference of one day before and after.

Knowing the winter solstice, according to the solar term on the 15th, all the subsequent solar terms can be postponed, and the 24 solar terms used to guide agricultural production activities can be obtained.

At the same time, after determining which day is December 22 of the solar calendar, a gourd will draw a scoop, and you will be able to live a day of knowing the years of the world in the future.

For the Chinese lunar calendar, the complicated calculation of big and small months, as well as the more complex leap month, is a bit at a loss to play with the sky.

But this is not difficult for him, complex astronomical calculations he can't, look at the full moon and the lack of the moon will still be, only need a long time to record and count the moon's cloudy and sunny round, one day Wang Tian will know which day is the New Year's Day (Spring Festival) of the lunar calendar.

In fact, with the solar calendar, it can be used for the year, knowing the 24 solar terms, the agricultural production arrangement is not a problem, it is enough for the use of social production activities at this stage, the reason why Wang Tian is entangled in the lunar calendar, in fact, is the special complex of the Chinese for the year.

Wang Tian plans to make a "Gui Watch" tomorrow to strengthen himself, if he misses this winter solstice, he will have to wait for another half a year