You promised to build cars, so why did you go into the military industry?

Chapter 70 Passive Mechanical Arm

"Hey! This thing works really well! It's just that my back is a little sore."

Professor Wang Lijian, after removing his gear, rubbed his lower back, seemingly still feeling a bit unsatisfied.

"There's no other way; some of the power is transmitted through the core muscles of the waist and abdomen."

Zhou Rui, who was standing to the side, explained while reading the data returned by the sensor.

"That's a pity. At my age, I'm afraid it's difficult for me to use it for a long time."

The hard feel of the plaster cast, which was put back on his arm, gave Professor Wang Lijian a sense of reassurance.

"The original design was intended for military use."

A suitcase with a handle appeared in front of Professor Wang Lijian.

"Here you go. A three-minute 'real man' experience card."

"Hey! Hey! Hey! Manager Zhou, the reporters are right there. Be careful what you say."

Afterwards, the group accompanied Wang Lijian on a tour of the solar photovoltaic panel production workshop and then to the rocket assembly plant.

The old man stood on the Tower Bridge, looking very excited, and took a picture with the rocket.

On November 13, after watching the third launch of the Joint-1 Y7 carrier rocket at the flight control center, Wang Lijian returned home satisfied and with a sense of accomplishment.

Several truckloads of donated supplies, arranged overnight, followed behind Wang Lijian's car.

A convoy of several vehicles set off in a grand procession toward the Northwest.

In the afternoon, reporter Yang, who had taken a lot of footage, led his team to say goodbye to Li Ran and others.

Not long after they parted, Li Ran found herself feeling rather lonely.

A day later, Lu Xiangwen appeared in the workshop where the "Biosphere 3" module was located, cursing and swearing.

No one wanted to risk trouble, so Song Xuewu secretly called one of the students out to find out what was going on.

It turned out that the lab mice they ordered had been intercepted.

The next batch of lab mice will not be delivered for another ten days.

Song Xuewu counted the time on his fingers; it was a bit rushed, but he could make it.

It seems I need to pre-set all the equipment to avoid being caught off guard later.

In the following days, with the completion of the Biosphere 3 module testing, everyone fell into anxious waiting.

To ensure the success of the launch on the 28th, a reused launch originally scheduled for the 20th was cancelled.

Just then, Lin Yu led his team to conduct a thorough inspection of the first-stage rocket body, which had been reused three times in a row.

From an appearance standpoint, the rocket, having served three times, is completely black and not particularly aesthetically pleasing.

However, its structural strength is surprisingly good.

Based on the data, Lin Yu concluded that the theoretical limit for the number of times the rocket body can be reused is around 15.

Furthermore, the reliability of the entire rocket system increases with the number of reuses, reaching its peak around the ninth reuse, after which it declines.

Yes, a standard parabolic model.

That afternoon, Li Ran found Zhang and Gao, who were looking at documents, and handed them an official letter of secondment entitled "Letter Regarding the Temporary Transfer of Comrade Zhang Chengyuan and Comrade Gao Jingming to Work in Our Company".

"Keep it up, do your best."

Four days later, the lab mice finally arrived.

After the rapid transfer was completed, the Biosphere 3 module was officially sealed.

A day later, all the sensors inside the module reported normal data, and the 8.5-ton module was successfully secured to the payload position of the Joint-1 Y8 carrier rocket with the help of machinery.

With the fairing closed and the final power-on check before leaving the factory, the Joint Launch Vehicle-1 Y8 successfully rolled off the production line.

The vertical transfer began the following day.

Unlike in the past, all staff involved in the transfer mission this time were equipped with passive robotic arms.

The soldiers on guard nearby couldn't help but glance at it.

Li Ran quietly approached Er Mao Yi and asked, "Major Xing, this is a new piece of equipment we've developed—a passive robotic arm. Are you interested?"

Xing Yan looked at Li Ran in surprise and asked, "Is this all there is to it?"

"Wait a minute, why are you suddenly showing off? You usually never leave the house, do you? Something's fishy. Are you letting someone show off their skills?"

Li Ran agreed with Xing Yan; the product did look rather plain, but it was definitely effective.

There was no rush to modify the appearance; the performance was the most important thing. So he shouted to the crowd, "Xu Qinghe! Come on, show us what you've got!"

So Xing Yan watched as a tall man, 1.8 meters tall, climbed up and down the transfer platform outside the retreating area with the help of a robotic arm, like an ape.

"Wow! That's interesting." Xing Yan became interested. "Take a few samples with you. I'll take you to the military region at two o'clock this afternoon."

"Military region? Isn't that unnecessary? Can't we just use our own base?"

"The commander instructed that anything you voluntarily offer must be taken seriously."

Ignoring the crowd, Li Ran found Zhou Rui in the throng, pulled him onto his personal electric scooter, and drove towards his laboratory.

When Zhou Rui heard that he was going to the military region in the afternoon, his body trembled instinctively.

"This place is different from the Europa Federation you were in before."

To put it bluntly, the army of your Europa Federation is nothing more than dogs kept by the powerful and wealthy.

But here, the soldiers are our brothers of the class.

Noticing that Zhou Rui's trembling hadn't subsided, Li Ran didn't try to persuade him any further: "Sigh, you'll find out this afternoon."

At noon, Guo Shuyan brought over two meals, and the two of them had a simple meal.

At 2 p.m., the two appeared in front of Xing Yan in a Lingyun SU7.

As Xing Yan spoke, he walked towards the back of the car: "Where's the stuff?"

"In the trunk."

Xing Yan opened the trunk and glanced around; there were four rolling suitcases.

They opened and inspected the items one by one, then called over several soldiers to help move them onto a nearby military truck.

After getting into the car, Xing Yanchong and the other man shouted, "Let's go!"

After a bumpy ride, Li Ran felt like he had eaten too much at noon, and his stomach was churning.

Just as I was about to throw up, the car stopped.

Without even saying hello, Li Ran and Zhou Rui got out of the car, found a tree, squatted down, and started vomiting.

"Major Xing, how about I donate some to the troops stationed at the launch site? Ugh—this truck doesn't even have shock absorbers, does it?"

Li Ran's legs were still trembling slightly after she recovered.

"Why would we need shock absorbers? We're not carrying anything valuable. What if the shock absorbers break down? Wouldn't that cause problems?"

Once Zhou Rui had recovered, Xing Yan and several soldiers strode towards the parade ground along the asphalt road.

Stay close. Wherever we go, you go.

After circling half of the field, the group arrived at the edge of another area.

From afar, they saw Xing Yan and his group salute a middle-aged man, who returned the salute. It was unclear what they were saying to each other.

With the sound of a whistle, the previously relaxed atmosphere immediately became solemn.

Before long, under Zhou Rui's guidance, the four sets of passive robotic arms from the four suitcases were successfully equipped on the four young soldiers.

With the equipment in place, the four soldiers conducted detailed tests according to the established training tasks.

"Grip strength has improved significantly, with data showing an increase of approximately 41.8%!"

"Endurance has increased, and the time to lift the original maximum weight has increased —"

The gasps of surprise from the onlookers mingled with the reports from the testers, constantly stimulating the nerves of those present.

Caught up in the enthusiastic atmosphere, Zhou Rui relaxed considerably and began to explain the principles to those around him.

The principle is simple: it shifts the burden from the upper limbs to the core muscles of the waist and abdomen, thereby significantly improving the user's upper limb strength performance.

Specifically, it means actively engaging core muscle groups such as the rectus abdominis, external oblique, and erector spinae, upgrading the entire force exertion mode from "local small muscle group drive" to "core large muscle group drive".

The lumbar support device is designed to capture motion, while the connecting transmission mechanism in the middle is responsible for conversion and transmission, allowing the passive robotic arm to follow the movement and ultimately amplify the upper limb strength.

The core of this process is the transmission mechanism between the lumbar support device and the robotic arm, which is responsible for capturing, converting, and transmitting the core force.

"Expert Zhou, can I understand it this way: the stronger the user's core strength, the better the amplification effect of the robotic arm?"

"Yes, but you'll get tired much faster too." Zhou Rui nodded. "Among the volunteers I interviewed before, the average fatigue time was 3 minutes."

"Huh? Ultraman? The light went off in just three minutes?"

A young soldier's offhand remark drew laughter.

"At the time, among the volunteers, this test was privately jokingly referred to as the 'Real Men Last Three Minutes' challenge."

Hearing Zhou Rui's addition, the laughter grew even louder.

Once everyone had quieted down, Zhou Rui solemnly emphasized, "This equipment is not a training tool. If you feel exhausted, you must stop and rest immediately, otherwise it is very easy to cause damage to your core muscle groups."

Over the course of the afternoon, most of the soldiers present personally experienced the strength boost brought about by the passive robotic arm.

The one who lasted the longest was a top soldier who was exhausted after nearly 24 minutes of high-intensity testing.

After removing this extreme data, the soldiers' average time to exhaustion was thirteen minutes.

As dusk approached, Li Ran and Zhou Rui left the four sets of equipment at the military region, ordered a takeout dinner from the canteen, and then began their journey home.

Before leaving, the two promised the soldiers who came to see them off that they would send another 10,000 sets of equipment within a month for everyone to use for daily testing.

On the truck, Xing Yan, who hadn't had time to eat, pulled out a packet of individual self-heating rations and ate a couple of bites. He then looked at the two men and said, "Want to eat something? Don't starve."

"No!" Li Ran refused decisively, "I'm afraid you'll make me wash the car if I throw up in it."