The heavy rain lasted for three days, as if it was the prelude to winter, and the temperature in Laiyan City dropped sharply.

These days, apart from driving a carriage to take Lena out to buy some alchemy items, Dawn has been huddled in the system to practice his skills.

It was not only the heavy rain that prevented Dawn from going out, but also the chaotic environment of Laiyan City. According to Allen, Dongcheng District and Beicheng District are better. Xicheng District has brief conflicts from time to time, but the South Port Wharf, which is fighting almost all the time.

When there was chaos in the city, the guard room must have been connected, so Don's plan to sneak in had to be shelved for the time being.

Knock, knock, knock.

With a quick knock on the door, the bleary-eyed Don opened the door. He had been training in the space for a long time last night.

"it worked. I did it." Lena danced outside the door with excitement on her face.

"well. What? "

"the washing machine, I got the washing machine out!"

"well, yes, go on. Uh, what? Washing machine! " Dawn was shocked when he came to his senses.

"Yes, you come with me." Lena took Dawn down the stairs.

At this time, there were several strange things in the open space on the right side of the backyard, a double bucket, a square box with a handle, and a yellow rope connected between the two.

"is this a washing machine?" Don is confused. I have seen the wheel, the roller and the stirring. What is this?

Lena nodded and said firmly, "that's right!"

Dawn took a few steps forward. Well, this bucket is the inner cylinder of the washing machine.

"this is."

"this is the wave wheel you're talking about."

"Why do I feel like a bone?"

"it's a bone. It's the sternum of the grunt beast. It's very similar to the wave wheel you're talking about." Lena said as a matter of course.

"well, well, then this is."

"this is the gear you're talking about."

"Gear?" Dawn looked at the row at the bottom of the bucket and was surprised. "these are teeth, aren't they?"

"Yes, these are the beak's teeth, which just meet the requirements of the gear."

Don Khan. Nima, this is a veritable tooth wheel.

"what about this?" Dawn pointed to the square box with the handle.

"this is a power plant!" Lena looked up and said proudly, "I thought of it after going through a lot of books." There are two fixed gravitational balls in it. This gravitational ball is the result of the failure of an alchemist experiment and is mainly for children to play with. Because as long as the two are stirred together, they will have a strong attraction to each other. So all I have to do is turn the handle for a moment, stir them and give a boost, and the two balls will attract each other and drive the gears to run automatically. "

Lena said this excitedly, paused for a moment, and said randomly, "and then through this cow tendon.". Oh, it should be said that the track, and then to drive the gear under the bucket to run, you can automatically wash clothes. "

"gravitational ball? Is it a cow's tendon? Teeth. " Dawn stroked his forehead and felt a little confused for a moment. "well, have you tried this thing?"

Lena shook her head. "No, I'll call you as soon as I'm done."

"then give it a try. Practice is the only criterion for testing whether an item is successful or not." With a big wave of his hand, Dawn felt a sense of mission to promote technological progress in other worlds.

"well, I'll get a dress." Lena is going to trot like she is in the house.

"No, I'll take this one." Dawn took off his black gown and threw it into the bucket, then added some water.

"who will start it?"

"you come. After all, this is your first alchemy item." Dawn smiled.

"Hmm!" Lena nodded solemnly and put on the handle. Take a deep breath, turn,

Clang, clang.

Well, it feels like driving a train. Dawn could not help but whisper as he listened to the sound made in the small box.

After turning for about three minutes, the sound of Kuang cut was getting faster and faster, and the bull's tendon track began to turn slowly at this time. So far, everything is going well.

Lena suddenly let go and took a step back.

The two men watched as the track began to change from slow to slow, and there was a faint sound of water in the barrel, which obviously began to stir.

Lena excitedly grabbed Dawn's arm and looked with a sense of accomplishment at the thing that took her three days and nights to make.

Kuang Che.

The faster the sound, the faster the tracks, and there was a splash in the bucket.

Hey, why does it feel like something's wrong. Dawn looked thoughtfully at the barrel.

Buzz. Then the spinning barrel began to make a sound.

"er."

Kuang Che.

Buzz.

"it's not normal, is it? why don't you stop it first?" Dawn said anxiously as he looked at the rapidly turning barrel eyelids.

"Ah!" Lena gave a cry of surprise.

"what's the matter?"

Lena said with a sad face, "I just thought about how to make it turn, and forgot how the design made it stop."

"what?" Dawn was shocked!

Boom

Just then, the rapidly rotating barrel suddenly burst and all the parts were scattered.

"inverted", Dawn reacted very quickly, grabbed Lena by the shoulder and threw it behind her.

"spend money indiscriminately!"

The lacquered black dagger flashed red, and a flirtatious blood flower loomed, but it was forced forward by Dawn before it took shape.

Sizzling, sizzling, hissing.

Ding, Ding, Ding.

The granular things that come with a little impact are blocked by layers of knives.

Before he breathed a sigh of relief, Tang en suddenly went black and the wind blew in his face. He subconsciously put his hands in front of him in the shape of a cross.

Bang!

A pain in the hand, the body flew out of the air, directly hit the wall of the house!

Everything happened only in an instant, and when Lena came to her senses, the yard was a mess, and the floor and walls were covered with the wreckage of her first alchemy.

"Mr. Arthur, how are you? Where are you hurt? "

"well. It's all right! " Don snorted and stood up. With a bang, he lost half of the "wheel" that had kept him bumping against the wall. Just as he was about to put away the dagger, he moved in his heart and looked down to see a green white tooth biting into the hole of the dark dagger.

Nima, isn't that ridiculous. Dawn was sweating like rain, thanks to his own indiscriminate spending in advance, otherwise it would have been the impact of the explosion and the penetrating force of the teeth. He's going to sacrifice blood for Lena's first alchemy.

"I'm sorry, it's all my fault." Lena looked pale and looked at Don's blue and purple arms filled with remorse.

"it's all right. If you invent it, you have to fail sometime. " Don comforted, then patted his thigh: "I see." Well, I'm responsible, too. I forgot to tell you that the washing machine should be reversed. " No wonder I always felt strange when I saw that barrel spinning just now.

"Ah, positive and negative?"

"Yes, it takes positive and negative stirring to wash off the stains, if one direction tells the rotation …." Dawn patted Lena on the shoulder. "you're going in the right direction, at least you've invented the dehydration function of the washing machine ahead of time!"

"er." Lena was stunned. "where are you going, Mr. Arthur?"

"apply the potion." Dawn lowered his shoulders feebly, Nima, it hurts.

Lena stuck out her tongue and said, "Let me help you with it. I just made up a primary trauma medicine the other day."

"Don't." Dawn was surprised. "I have a potion in my room!" Use mine, use mine! "

"."

(bow to thank book friends for the reward of "death Sirius Moon" and "Birds can fly". Well, the civet has a friend who is the guide for raccoons to understand the starting point. If you are interested in science fiction, you might as well take a look at his Dark Swordsman. )