Wang Tian, who was helpless, sat cross-legged in front of the observation deck, serious for a moment.

Although it is boring and dry, this can be regarded as creating history, as long as the Tianlong tribe continues to pass on, the one he made will be passed on forever. But it's not sloppy.

After seeing Wang Tian carving a stick, Wu humbly came over to ask him for advice, and asked him with black lines on his face after explaining: "Wu, when will that water tank be given to me, I want to use it." ”

"At night, after everyone has sacrificed to the gods." Wu was slightly disappointed when he learned that this was a tool for measuring length.

In his mind, there was a faint uneasiness, he was a tribal sorcerer, in charge of communicating with the gods, but it seemed that the gods never paid attention to him. What would the people of the tribe think if they knew that he was a witch who could not communicate with God? Since Wang Tianlai's arrival, this concern has become even stronger.

He wasn't jealous of Wang Tian, after all, it was Wang Tian who made him see the existence of miracles, he just thought that his way of communicating was wrong.

In fact, the so-called wizard is more appropriately called a wise man. Their abilities come from the accumulation of wisdom passed down by word of mouth, from the knowledge recorded on the pile of stone slabs beneath the petroglyphs.

Shennong tasted a hundred herbs, in fact, it was a bit wronged, maybe the final death was inevitable, but before death, at least you don't have to be overturned by the medicine again and again so often, and then get up and uh... Keep falling.

The era of the Shennong clan is already the period of the big tribal alliance, and the knowledge of the Shennong clan inherited by the large and small tribes can't be trusted? If you want to taste the medicinal effect, you can also avoid poisonous and deadly poison first.

After receiving Wu's answer, Wang Tian continued to carve the lattice and explained to Wu why he did this.

This is a work that cannot be left undone, and it will be used as a standard for building houses and making tools in the future.

Wu didn't understand it after watching it for a long time, and he didn't get to the bottom of it anymore, he had already developed a habit that he couldn't understand what the Son of Heaven did beforehand, and he could always understand it afterwards. Why not wait.

After Wang Tian stopped for nearly an hour, the meter ruler was finally done.

Grabbing a handful of plants and trees, rubbing them on the meter scale, the size of the bamboo piece became obvious.

Then, using a soft but tough grass as a standard, weave a 10-meter-long rope ruler with a mark every half a meter. This should be sufficient.

This kind of rope grass was selected by Wang Tian after ravaging countless grasses, and the diameter of 1/3 of a small fingernail is not something he can pull off, and it is a good substitute before he finds hemp.

After the measuring stick was ready, Wang Tian planned to make the hand drill he thought of yesterday first. With a hand drill, it is much more convenient to make a rod scale.

Find a straight wooden stick with a diameter of 3 centimeters and a length of 40 centimeters to make a rotating rod. After peeling, grill it on a fire and char it.

In the center of one of the ends, cut 5 cm with a knife in a cross shape. According to the position of the key lever protrusion, the part that blocks the key lever is dug out on both sides, which is more conducive to clamping the key bit. Then use a knife to cut a full circle of groove marks at the port.

Insist on then removing a cross key, file the key teeth on the top of the cross tip with a file, and put it into the cut cross stick, adjusting the position.

Rub the twine rope with both hands to turn the drill pipe to ensure that the key is installed in the center of the drill pipe. Otherwise, the drill pipe will swing a lot when in use.

After confirming that everything is correct, pick up a straw rope and tie it with a slipknot at the end. The other end of the straw rope passes through the slipknot, and then pulls the slipknot in the groove of the circle of the drill pipe, and then ties the other end of the straw rope to the wooden shelf and tightens it, so that the more the slipknot is pulled and the rope is jammed, the tighter it is.

Put the end of the slipknot tightly against the drill pipe, straighten and tighten the whole rope, and then rotate the rod to wrap the rope head together and wrap it around.

Wrap it all the way above the round handle of the key, cut the rope, and tie the two ropes in a knot. This prevents the cross cut from continuing to burst above the drill pipe during use.

After the drill bit of the drill pipe is installed, the key nail made last night is heated on the fire and burned red, and a threading hole is burned at the bottom of the top of the drill pipe.

Through the rope, find a temporary flat bar-shaped strip and tie it at both ends.

Choose a stick with a diameter of 7 cm and a length of 35 cm, and cut the two sides of the middle of the stick about 15 cm into a flat shape.

Use the meter ruler you just made to find the center point. Engrave a criss-cross mark to draw a circle with a diameter of 30, and then press the circular diamond with a hand drill in a full circle. In this way, a through hole with a diameter of three centimeters is turned out several times.

Use a knife to properly trim and enlarge the inner diameter of the hole. The middle hole of the fixed drill pipe is done, and then the two ends of the pressure rod are sharpened with a knife to carve out the card groove of the binding rope.

Remove the temporary bead of the hand drill, the drill pipe passes through the center round hole on the bead just made, and the rope is wrapped around the drill pipe twice and then tied in the grooves at both ends of the bead. A formal hand drill is done.

It's a pity that there are no bearings, otherwise another handle can be installed on the top of the drill pipe. Grasp the handle with one hand and press down gently on the position to be drilled, and press the bead with the other hand to complete the drilling operation.

In this way, it is more stable, more convenient and more labor-saving to drill holes.

This kind of hand drill is actually still used in some carpenters now. It's just that a special chuck is installed in the rotor section. This makes it easy to change drill bits of various sizes.

Wang Tian also made three hand-drilled firearms for making fire. Because with ready-made hand drills, it is very fast.

If you want to do a good job, you must first sharpen your tools. The ancients, uh... It should be said that future generations are honest and do not deceive me.

Wang Tian picked up some sawdust from drilling just now and put it on a bamboo board, took it and turned the hole to aim at the sawdust, pressed down the bead for more than ten seconds, and then began to smoke, pulled the burning sawdust pottery onto the hay, and after blowing a few mouthfuls, the fire ignited.

Not bad, very good, two inventions were completed in a while, and Wang Tian was very satisfied with this.

Now you can start making a rod scale. Wang Tian found that there was no weight suitable for making a weighing stone, and without a weighing stone, it would be difficult to determine the front sight (fixed star).

Wang Tian thought of burning pottery, iron is precious in this world, and there is no shortage of mud.

Wang Ba eats the scales ___ are all scum.

Picking up the four-handed drill on the ground, Wang Tian entered the cave and handed it to Wu. The tools of the tribe are all kept and distributed by him.

In front of Wu and Huo, Wang Tian demonstrated the process of drilling wood for fire and drilling holes.

The rapid drilling speed and the rapid ignition of the flame shocked the three of them again. This thing that can turn on its own, the first thing that the three of them think of is the gods.

This must be a tool of the gods.