"Indeed...... Not quite the right way. Qin Fengyi thought for a while, "Can we use mechanical tools to reduce labor." ”

The advent of machinery has reduced the labor force, such as the current computer embroidery, just press a button, you can embroider a variety of complicated patterns, if it is replaced by manual stitch and thread sewing, that person will definitely be tired of cervical spondylosis.

In ancient times, there were also machines, such as the small wooden toys in the Strange Tricks, and it is rumored that there is a kind of mechanism bird that can fly in the sky all the time, and does not consume energy, but simply flies with the help of air currents.

"Mechanical tools?" Lin Qingxue frowned and pondered, modern society is inseparable from machinery, food, clothing, housing and transportation!

Clocks, mobile phones, computers, and bicycles at home are all mechanical.

Generally speaking, the loom made by Qin Fengyi is a machine, although it is made of wood, it is also a machine.

"Do you have a way?" Han Xue Ning looked at Qin Fengyi happily, although this guy is not serious and is very animal, like a wild horse household, but sometimes he always comes up with something new.

"Do you know bicycles?" Qin Fengyi thought of a kind of machinery, that is, something that almost everyone has touched, bicycles!

"Bicycle ......" Lin Qingxue and Han Xue stared at each other, and then their eyes suddenly lit up, and they both saw surprise in each other's eyes.

The principle of the bicycle is to press the pedal, and in the process of pedaling, the large gear connected to the pedal begins to rotate, and the chain on the large gear drives the small gear that is integrated with the wheel.

The big gear rotates for one time, and the small gear will rotate for at least 10 times, and under the power of the pedals, driven by the gear and chain, a strong rotating force is formed.

When the bike is idling, the big gear is selected to make the bike spin at least a few dozen times a week.

"You mean, you can use the principle of a bicycle to make a machine?" Lin Qingxue felt more and more magical the more she thought about it, and then thought about it carefully.

That's right!

We are human beings, and although we can't make bicycles, we have at least been exposed to them, and their principle is very simple, and we can imitate this mechanical device by following this principle.

Human intelligence can only be more advanced from generation to generation, just like people in the 50s will use computers less, while people in the 70s will basically use them, people in the 90s are more addicted to various mobile games, and future generations have begun to play VR.

"Yes, we don't have a chain, but we have gears, as long as the pitch between the gears is close, it can be made into a machine!" Qin Fengyi opened the gearbox, and there were still many gears stored in it, which was a gearbox on the helicopter, using the rapid transition between the gears and the smooth bar screw, adjusting the position of the gears, so as to form different rotation speeds.

After searching for a long time, I found 2 gears, one gear is oversized, about the size of a coconut, and the other is only the size of a paper cup.

The pitch of the two gears was completely connected, and after testing the gears, Qin Fengyi began to make this very awesome mechanical tool.

The best thing to use is bamboo, using the carpenter's mortise and tenon process, and it didn't take long to make a very strange thing, which is part of the principle of bicycles.

The stick, which is tightly attached to the big gear, has a crappy pole, which is equivalent to the pedal on a bicycle, because the gears are too close to each other to be stepped on with the foot, and must be shaken by hand.

The pinion is connected to a long rod, and the two are connected to each other as a whole, and this pinion is equivalent to the wheel of the bicycle.

On both sides of the long pole are two strange huge wheels, the wheels are made of thin bamboo poles and wide bamboo strips, the toughness of the bamboo is very strong, can be bent 70 degrees without breaking, a bamboo pole several meters long is divided into two, bent into an arc and then fixed.

"Awesome!" Lin Qingxue has been giving Qin Fengyi a hand, but after seeing the completion of this thing, Xiao Nizi was stunned, especially this enlarged version of the bamboo wheel.

"Admire!" Han Xue muttered to herself, "Even if I kill me, I can't make such a thing." ”

The diameter of this wheel is about 1.5 meters, in order to make this tool better played, Qin Fengyi deliberately heightened the tool, so that the wheel is 20 cm off the ground, and the two bamboo wheels are to rotate, this thing is mainly used to wind silk.

"Don't be in a hurry to worship first, I don't know if this thing is good or not, let's experiment first. Qin Fengyi broke open the two cocoons, tied one end of the silk cocoon to a wooden pin of the bamboo wheel, and then dripped a lot of shark oil between the gears.

Machinery needs lubricating oil, the engine of a car has to have organic oil, so does a motorcycle, and the chain of a bicycle must also have lubricating oil, otherwise the machine will die quickly.

There is no motor oil on the desert island, but there is animal oil, and the effect of shark oil is not only to heal burns, reduce inflammation and speed wound healing, but also have a lubricating effect.

The role of any animal oil and vegetable oil is lubrication, and when there is no engine oil, it can also be replaced by other oils.

"Ready to start!" Qin Fengyi slowly rotated the lever, and the two huge bamboo wheels began to rotate under the drive of the gears, and the large gear rotated very slowly, because the tooth pitch is not the same as the size of the gear, but the speed of the pinion rotation is super fast, driven by the pinion, the bamboo wheel rotates extremely fast, so fast that there are no friends!

"Damn, it's so fast!"

Lin Qingxue kept staring at the two silkworm cocoons in the golden pot, and the two completed cocoons were all pulled into silk and tightly wound on the bamboo wheels in just a dozen seconds.

10 seconds, thousands of meters of silk thread is completely wrapped on the huge bamboo wheel, the bamboo wheel structure is very peculiar, is divided into two with thick bamboo, the bamboo barrier layer inside the wheel is smoothed with a file, the whole wheel is an arc-shaped depression, the silkworm cocoon silk will be firmly trapped in this depression, will not be thrown out because of too fast rotation, or wrapped in the axle of the wheel.

"It's amazing!"

Han Xuening looked at the silkworm cocoons on the wheels and was speechless in surprise.

"Well, move faster, and find the two threads as soon as possible while soaking the cocoon in the water. Qin Fengyi said, because the cocoon silk is a complete thread, the silkworm chrysalis has not yet turned into a silkworm moth to bite through the cocoon, this cocoon is a complete one, and it will not break in the process of drawing.

"Okay! Let's try to connect it first, you slow down!" Lin Qingxue and Han Xuening operated quickly, each of them filled a huge golden bowl with warm water, and the silkworm cocoon quickly decomposed within ten seconds of touching the warm water, just find a thread of silkworm cocoon silk and rub it into a line with the thread on the wheel.

The cooperation of several people is quite tacit, Qin Fengyi's invention is very powerful, the cooperation of the three people, the efficiency has been greatly improved, and in less than an hour, thousands of silkworm cocoon silk have been smoked.

"Next, let's weave cloth and make some silk ......" Lin Qingxue said happily, and then seemed to see something, pointing to the sky, "There are airplanes ......"

Thank you, book friend 20180517014725552, user 189****6772, I want to take advantage of the spring breeze to like you, reward!

(End of chapter)