"Based on the calculation that each fusion can enhance the equipment score by fifty points, it would require about four fusions under normal circumstances to successfully promote the Human Potential Activation Device to Legendary status, which is generally similar to the fusion situation of other equipment in the Umbrella Biological Experiment Zone."

However, even though a +4 fusion level is not high, Zhang Yanhang can only manage to fuse up to +3 with the Human Potential Activation Device he has obtained, so achieving a Legendary Human Potential Activation Device +4 is merely a dream.

"Even with just one fusion, perhaps due to the quality upgrade, the strength effect bonus provided by the additional attributes increased directly by 5%, from a 55% strength effect bonus to a 60% strength effect bonus.

And I can equip four Human Potential Activation Devices +1 in total, so these four Human Potential Activation Devices +1 can collectively provide a 240% strength effect bonus, which can be considered a huge boost."

Zhang Yanhang's XX-level Longbo's power provided only a 265% strength effect bonus, and now these four Human Potential Activation Devices +1 together are only 25% less than Longbo's power.

In this regard, Zhang Yanhang can only say that equipping four identical pieces of equipment is indeed absurd and a huge advantage.

"But after the Human Potential Activation Device +1 was promoted to Red Quality, the usage requirements didn't increase much, only increased by ten points, from the original 115 strength points to just 125 strength points. Previously, similar equipment generally increased by fifteen attribute value points."

However, Zhang Yanhang can somewhat understand, after all, 125 points are already the Fifth Tier's limit, and increasing any further would reach the Sixth Tier, which wouldn't be within the range of the Red Quality Human Potential Activation Device +1, so it just stayed there without reaching 130 points.

After briefly checking the attribute list of the Red Quality Human Potential Activation Device +1, Zhang Yanhang immediately equipped these four newly fused Human Potential Activation Devices +1 to his hands, as equipping them felt somewhat like bone growth, so he routinely switched them to hidden status.

Next was the testing of strength. Zhang Yanhang first took out a fifteen-thousand-ton steel cube from his Stomach Space and placed it on his right hand, then stacked another thousand-ton steel cube on top. As expected, it was relatively easy.

So, he immediately stacked another thousand-ton steel cube but still felt considerable ease, so based on experience, he stacked an additional thousand tons, but it slightly exceeded his limit.

After gradually reducing a small portion of the steel cubes, Zhang Yanhang finally calculated that his current maximum strength should be 17,996 tons, an increase of 3,006 tons compared to the previous 14,990 tons, indeed quite a significant growth.

"I remember my total strength during the Third Tier period was 1,053 tons, about a thousand tons, and this time my strength growth is roughly three times my total strength during the Third Tier."

Since the Fourth Tier mainly enhances Physical Strength, Zhang Yanhang's current nearly 18,000 tons of strength is only eighteen times that of the Third Tier, not very high.

After all, the initial promotion to the Fourth Tier increases strength tenfold, so he has roughly increased his strength eightfold so far, mainly provided by the Human Potential Activation Device and the Neck Potential Activation Device.

"Speaking of which, it would be great to have an additional four tons of strength, reaching a full 18,000 tons instead of just approximately that amount."

Zhang Yanhang feels somewhat uncomfortable about this.

"With a single-handed strength of 17,996 tons, if I enhance it with Spiritual Energy, it can reach 35,992 tons, and the double-handed strength has already reached 89,980 tons, nearly ninety thousand tons."

Convert Zhang Yanhang's current strength into jins, that would be 180 million jins. Considering each person consumes one jin of raw rice per day, the rice he could lift with both hands could feed 180 million people for a day, or nearly a tenth of the Empire's population for a day.

As for Qin Island City, with only a population of twenty million, Zhang Yanhang can support them for nine days, more than a week.

"The full load displacement of a nuclear-powered aircraft carrier is about a hundred thousand tons, meaning I'm close to lifting a nuclear-powered aircraft carrier. Another ten thousand tons of strength would be sufficient."

Zhang Yanhang will next upgrade the Divination Tarot Card, which should certainly increase his strength limit further.

Despite the fact that a hundred-thousand-ton nuclear carrier is currently a bit challenging for Zhang Yanhang, lifting two Aegis Destroyers with one hand is no problem, as they usually weigh between eight to ten thousand tons, which means they can easily be lifted one-handed even without the addition of Spiritual Energy.

After completing the strength test, Zhang Yanhang first put the remaining Human Potential Activation Device into his waist bag and then began to count other equipment gains.

But speaking of other equipment gains, apart from the Divination Tarot Card, Zhang Yanhang only obtained a Legendary [Small Nuclear Fusion Reactor (Flesh Transformation)] from the Lord's Treasure Chest this time.

Zhang Yanhang observed the appearance of this Small Nuclear Fusion Reactor briefly and could say that despite it being Legendary Equipment and having transcended color quality, its surface still shone with a bluish-golden aurora, unexpectedly beautiful.

At least, Zhang Yanhang's straight male aesthetic found this blue pretty appealing, this shade of blue is slightly dark and tinged with purple.

When coupled with Golden, it looks far more upscale than the ordinary blue halo of the Second Tier. Before, the Second Tier was merely ordinary blue, which was bright blue, but now it's more like dark blue.

As for the dimensions of this Small Nuclear Fusion Reactor itself, it indeed is quite large, with a diameter exceeding twenty meters, far beyond what the normal form could equip. Let alone the heart; his entire body is probably only half the height of this Small Nuclear Fusion Reactor.

"With my current Heavenly Earth Skill's highest transformation limit, it should be enough to meet the equipment's requirements by just activating the basic Heavenly Earth Skill, right? I shouldn't need to activate the Dharma Body State to equip a Small Nuclear Fusion Reactor, right?

"But speaking of which, if a small nuclear fusion reactor is already this large, how big must a medium or large nuclear fusion reactor be?"

Zhang Yanhang had previously always thought that this small nuclear fusion reactor would only be a few meters in size. He had never expected the actual object to truly match his initial worst-case estimate, with a diameter of dozens of meters.

"A normal human heart is approximately only ten centimeters wide. Even though my height now exceeds twelve meters, my heart still remains under a meter. But presumably, after the fifty-one times amplification of the Heavenly Earth Form, my heart will be large enough to match the size of a small nuclear fusion reactor."

If possible, Zhang Yanhang hoped that Dr. Krees could develop an ultra-miniature reactor similar to the palladium element reactor on Iron Man's chest.

Unfortunately, Krees is still relatively young, having only produced this initial version of the nuclear fusion reactor. Perhaps given a few more years, allowing him to grow into his forties, he might really be able to develop an ultra-miniature reactor like Iron Man.

Despite feeling that the Heavenly Earth Form should suffice, Zhang Yanhang still felt slightly uneasy. He couldn't resist opening the skill effect of Heavenly Earth Form again to check the current maximum transformation limit.

[Heavenly Earth Form · Original Scripture LV.6 (Active Skill)]

[Active Effect: After skill activation, the Heavenly Destiny Master can freely transform (grow larger) the body, with a maximum transformation limit of 2400%+2700%=5100%[currently 646 meters (+2 meters)], strength effect +600%. No cooldown time, minor physical strength consumption.]

[Additional Attributes: Maximum transformation limit +2700%.]

"Since only fifteen minutes have passed since the last check, the maximum transformation limit indeed hasn't increased much, growing just from the original 644 meters to 646 meters, a mere two-meter increase in the transformation limit."

As for Zhang Yanhang's height, it has increased even less, only five centimeters, growing from the previous 1262 cm to 1267 cm. These five centimeters on a normal person might already count as a significant change, easily noticeable to others.

But for Zhang Yanhang, who is now twelve meters tall, a mere five-centimeter increase essentially shows no visible difference externally.

"Previously, I was about 35 meters shy of the world's second tallest building, the 679-meter Medika 118 Tower. Now, I'm still 33 meters shy."

Before, Zhang Yanhang thought he would need at least three more hours to catch up to the 33-meter difference, but once the small nuclear fusion reactor is installed, he figures it should only take about an hour to catch up.

Incidentally, although in terms of size this legendary small nuclear fusion reactor far exceeds Iron Man's palladium element reactor, its overall appearance is quite similar—a scaled-up version of the palladium element reactor, made up of a series of coils and metal restrictors.

Or in other words, nuclear fusion reactors around the world are constructed similarly.

After all, the basic structure of such a reactor was determined during theoretical research in the 20th century. Subsequent research merely adds layers and modifications to this optimal configuration, following the same principles, with the ring structure universally present and extremely similar across different countries' studies.

Even though Krees is quite gifted, he must adhere to scientific principles; thus, the small nuclear fusion reactor he created also adheres to this theory, with an overall circular structure, or circular rings, resembling a gigantic coil-bound reactor.

After observing the exterior of the small nuclear fusion reactor for a bit, Zhang Yanhang immediately activated the Heavenly Earth Form skill, transforming into a 646-meter colossal life form.

Of course, if he could grow another twenty meters, becoming a 666-meter giant, Zhang Yanhang would be even more satisfied. After all, a 666-meter size combined with three heads and six arms would indeed embody the descent of a demon god.

Manually tearing open the chest muscle and prying open his rib cage to extract his heart might be somewhat strenuous and potentially painful, so Zhang Yanhang opted again to use the transformation technique to create a direct opening in his chest, forcibly inserting the small nuclear fusion reactor.

Only at twelve meters tall, Zhang Yanhang was barely half the height of the reactor. But now, reaching 646 meters, his heart's diameter is nearly fifty meters large. Thus, inserting a roughly thirty-meter small nuclear fusion reactor inside naturally becomes easier.

Initially, Zhang Yanhang thought that installing this small nuclear fusion reactor would require some complex operations, as it didn't seem meant for human use. He imagined it would need extensive tuning for proper installation.

In practice, however, as soon as Zhang Yanhang brought the small nuclear fusion reactor close to his heart, the surface of the reactor suddenly melted like a flowing stream, rapidly surging toward Zhang Yanhang's heart, with layers of metallic silver light quickly expanding across his heart's surface.

Within a second or two, Zhang Yanhang's original large heart, fifty meters in size, was completely enveloped by the small nuclear fusion reactor, as if a layer of silver-white metal armor coated it, evoking a sense of transformation into a silicon-based life form, full of simplistic yet sophisticated technological beauty.

Then, circles of metal coils surfaced on the metallic armor of the heart, continuously flashing with blue light, representing energy operation.

This signifies that the small nuclear fusion reactor is now officially activated, continuously pumping energy directly into the heart and then through the blood vessels throughout the body.

This gives Zhang Yanhang the sensation of being constantly replenished with energy, which, of course, is true, as his body is indeed being continuously empowered by energy, expanding as more energy pours in.

In fact, the usual Swallowing Heaven and Earth Skill also uses energy to regenerate his energy value, reinforcing his body. But now, due to the dramatically increased rate of energy influx, the physical sensation becomes particularly pronounced.

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