A flying needle was placed on the table.

This is a very thin and light flying needle, weighing less than one gram, because the material is very thin and light, which is also the reason why the flying needle made of hair is not very powerful.

Jiang Ning sighed lightly, wiped his hand lightly, and then shook it.

The needle flew out at once, and then one turn, then another, and then another, and with a "grab" it hit a plank.

The needle goes into the wood for three points.

If this is nailed to ordinary people, it must be very painful.

But that's all there is to it, unless you hit the temple or the heart, you won't die.

That's the power of flying needles, and it's good to be scum.

"That's not going to work!" Jiang Ning sighed lightly, he turned around and operated in front of the console next to him.

Soon, the computer monitor showed a bunch of graphs, including speed, acceleration, flight trajectory, air vibration, ultrasonic detection......

"It's only one hundred and thirteen per second, which is about the same as a crossbow arrow, so it's no wonder this thing is considered chicken ribs." Jiang Ning sighed again.

He had been mentally prepared, but he still took some blows.

What can this thing be used for?

If you have to find a benefit, it is that the flying needle does not slow down as the distance increases, so the range is much longer than that of a crossbow arrow, and it can hit a target from a distance of a mile.

In ancient times, one mile was barely five hundred meters, and this range was not bad for a rifle.

No wonder those famous and decent families have been exterminated, but the evil sects and crooked ways have been preserved, I am afraid that in addition to the influence of the weakening of the vitality of heaven and earth, such small places are also the key.

It's a pity that this thing is still chicken.

Even at the end of the Qing Dynasty, this thing could be used to win the battle against those who lined up to shoot the party, and if the other party pushed the artillery up, the people who played the flying needle could only turn around and run away. Not to mention now, the sniper rifle of Yishui has a minimum distance of more than 800, and it is no problem to fight one or two kilometers if it is replaced by an anti-materiel sniper rifle, not to mention that now precision-guided weapons are becoming more and more popular, from guided mortar shells to guided bombs, from a few kilometers to thousands of kilometers.

"Luckily, I didn't plan to use it in the first place." Jiang Ning showed a hint of gratification.

He clicked on one of the charts.

What is shown above is the contrast between the flying needle's posture and the surface energy field.

It's not an airplane, it doesn't have ailerons or tails, and it turns around completely on its own energy field.

Principles related to the generation and existence of energy fields...... It's too profound, and it's too basic. He didn't have time to study for a while.

Again, as an engineering student, he just needs to be able to use it.

………………

Outside the laboratory, in Jiang Ning's room, Sister Meow was drinking.

In her opinion, such days are very comfortable, because as soon as an empty beer can is thrown down, someone will immediately come and pick it up. Even if no one sees it, Xie Xiaowei's pets will pick up the jar and throw it away.

The only thing that upset her were the two guys in the corner.

In the other two corners of the room, Lu Yuling and Ji Caiyun each occupied one of them, and the two of them sat cross-legged, cultivating there.

In order to prevent being harassed, they both wore earplugs and blindfolds, and their bodies were covered with a metal cage, which was densely packed with incomprehensible things, like magic circles and circuits.

These two cages were given by Xie Xiaowei. One was originally Xie Xiaowei's, the other was Jiang Ning's, and the other was made by the hamster boy who begged Jiang Ning to do it, but now it was snatched away by Hu Jiaojiao.

This kind of cage is a good thing to assist in cultivation, and it can increase the efficiency of cultivation by fifty percent.

Seeing Lu Yuling and Ji Caiyun working so hard, in addition to eating, they were cultivating all the time, Sister Meow's heart was somewhat shocked.

She could understand.

When Ji Caiyun transformed, it was already the end of the Qing Dynasty, and the Heaven and Earth Yuan Qi had already weakened very much, and cultivation was called difficult. Lu Yuling's situation is better, she transformed at the end of the Ming Dynasty, and finally had a few good days, but this guy is also under a lot of pressure, her strength was originally okay in the building, after all, there are waste firewood like Gou Desheng at the bottom, as well as the three soy sauce parties on the sixth floor, as well as She Manjing and Ma Jiahua, two unenterprising guys, Lu Yuling is definitely a positive model compared with them, but now it is Jiang Ning first, then Xie Xiaowei, and then a wild girl. is either the same age as her, or much younger than her, but can throw her a few streets, and she will inevitably have a sense of loss in her heart.

"It's really boring, I knew this earlier, I should have lived with Xie Xiaowei." Sister Meow sighed lightly.

Otherwise...... I'm also cultivating, Sister Meow couldn't help but think about it.

Just do it, she went into the quilt with her cat's waist.

That's how she practiced.

When Jiang Ning mentioned her to Cheng Anlan before, she said that she had a relationship with Chen Tuan's ancestor, which was not a lie, and the exercises she practiced were stolen from Chen Tuan.

That's right, she's a drunken cat, but first of all, she's a lazy cat, and Chen Jun's "Dream Swimming" is the most suitable exercise for her, and that phase is definitely not inferior to Wild Girl and "Aoki True Tips".

Suddenly, Sister Meow's ears twitched, and she got out of the bed again, stood up, walked out of the bedroom, and opened the door.

I saw Yuan Yueling standing at the door with a cover, raising her hand to knock on the door.

Seeing that the door opened by itself, the girl said hello to Sister Meow, and walked in with the bed.

"Why are you here? Tell your grandfather? "Sister Meow knew what was going on as soon as she saw the cover?

"Yes, although Grandpa is a little worried, the six-fold cultivation efficiency is still very exciting to him." Yuan Yueling replied with a grin.

Of course, she couldn't tell Sister Meow, her grandfather's original words were, "It's a bastard if you have a advantage, girl, go and take that room, it's better to squeeze that little bastard out." ”

"Your grandfather isn't afraid that you'll be bullied by that guy? He was kind to us, but not to you. Sister Meow was a little puzzled.

"Of course he was a little worried, so he gave me this." Yuan Yueling pointed to the top of her head.

Sister Meow found out that there was a very small ...... lying in Yuan Yueling's hair Xiao Wang Ba, as if he was born not long ago, is about the same size as the mouth of a teacup.

Undoubtedly, this is also a doppelganger.

"Don't worry, my grandfather won't be peeping on you." Yuan Yueling is also naïve, what do you have to say.

As soon as she said this, not only Sister Meow had a black line on her face, but also the little Wang Ba.

If you don't say this, forget it, but when you say it, it will embarrass everyone.

"It's okay, I'll just stay in the living room, won't that bastard kid just live in the living room? I'll keep an eye on him. Little Wang Ba made an unusually old sound, and it jumped off the top of the girl's head at once, and as soon as it fell to the ground, it quickly slid away.

Sister Meow was slightly stunned, and then realized that there was a very small skateboard under Xiao Wangba's body...... Magnetically levitated.

This thing seems to be the equipment that Jiang Ning made for those trumpets of the hamster boy, why did it fall into the hands of Lao Wang Ba in a blink of an eye?

However, she didn't plan to meddle in her affairs, if Lao Wang Ba used any excessive means, the hamster boy would definitely complain to Jiang Ning, since she didn't say anything, it would be a deal nine times out of ten.

By the time she came back to her senses, Yuan Yueling had already entered her room with the bunk in her arms.

The girl's heart is relatively straight, grandpa asked her to occupy Jiang Ning's room, it is best to squeeze this guy out, she will do exactly what her grandfather said, and choose Jiang Ning's previous bedroom, but now this is where Sister Meow, Lu Yuling and Ji Caiyun live.

As soon as she entered the room, she immediately saw Lu Yuling and Ji Caiyun occupying the two corners.

After thinking about it for a while, she occupied the remaining corner, and then looked around, but didn't see that kind of cover, so she simply threw the cover on the ground, sat cross-legged on it, and began to cultivate.

Sister Meow returned to the room and became more and more depressed.

Two cultivation maniacs weren't enough, and now there was another one.

Just then, she heard someone open the door.

It was Jiang Ning who came in, he came to get something, and as soon as he entered the door, he saw Xiao Wang Ba lying on a miniature magnetic levitation skateboard and wandering around.

He was angry when he saw Wang Ba now, so he subconsciously kicked up.

"Don't." Sister Meow hurriedly stopped.

It's a pity that it's too late, Jiang Ning has already kicked the little Wang Ba out, and the little Wang Ba is bouncing back and forth in the room like a squash ball.

Wang Ba's reaction is slow, change to a big demon, even if it's just a clone, Jiang Ning doesn't want to kick this kick.

"Little bastard, I want you to look good." Xiao Wang Ba was furious, and he shouted in an old voice.

"it." Jiang Ning heard whose voice it was: "No, Yuan Yueling also moved me here?" ”

He looked at Sister Meow.

Sister Meow nodded.

"See you later." Jiang Ning turned his head and ran, and he didn't take anything anymore.

It's a pity, just like Sister Meow didn't have time to stop it just now, he didn't have time to slip away now, and in an instant, his body seemed to be hanging with hundreds of catties of lead, and it suddenly became extremely heavy.

Xiao Wang Ba walked over on the maglev skateboard, with a hideous face and a sneer: "Little bastard, let's settle the previous accounts together now." ”

"Help!" Jiang Ning shouted, and the voice resounded throughout the building.