Because of the shortening of time, Tang Feng watched the star core upgrade throughout the whole process this time.

With the continuous improvement of stored energy, great changes have begun to take place in the space of the star core.

The first is the core of the entire star core, and the fountain of raw water begins to change. With the continuous increase of energy, the main mouth of the raw water spring began to expand until it doubled to the third level, and then the main spring mouth stopped expanding, but on the four equally distanced corners near the main spring mouth, a small spring began to gush out again. Needless to say, these four mouths only have a rudimentary spring, which should be the new star core split. However, because the energy seems to be insufficient, these four newly appeared springs are only a prototype, and not a split like the last upgrade, the star core immediately produced a split.

This is also a matter of no choice, the last time the second level was upgraded to the third level, Tang Feng was in the Hanford nuclear forbidden area, and the nuclear waste stored there was enough for the star core to spend 90% of its energy to condense a star core split after the upgrade. However, the amount of nuclear waste here is not even enough to allow the star core to be successfully upgraded to level 4. It seems that in order for these four newly emerged springs to completely condense into a star core split, an extremely large amount of energy is required.

Now is not the time to think about that, the main task now is to ensure that the star core can be upgraded smoothly, as for how to replenish energy after the upgrade, that still needs to be considered!

With the appearance of these four springs, the original pond with a size of ten acres was also expanding rapidly, and soon, the pond changed from a pond to a small lake with vast waves, and the area expanded tenfold to the size of one hundred acres.

With the change and expansion of the core area of the star core, the entire space of the star core is also rapidly expanding. The spring water flowing out of the spring of raw water continued to flow towards the chaotic gas around the star core, and the chaotic gas that was originally shrouded around the star core also began to retreat continuously, and the space of the star core that was originally only 5.6 kilometers radius. As the chaotic gas continued to shrink, it began to grow larger and larger, until the radius of the star's core space expanded to a full 18 kilometers, and the surging chaotic gas stopped shrinking.

At this time, the size of the star core space was basically stable at a circle with a radius of 18 kilometers.

The area of the star core space, which has been upgraded to level 4, is already as large as the survey area of the star core in the original tripolar state. That's a thousand square kilometers!

Tang Feng couldn't help but be a little overjoyed by the change in the star core space, although the price to complete such a change was all the nuclear waste in an Indian nuclear waste storage base and two small uranium mines in the Himalayas, but this was nothing to Tang Feng.

Since the space of the star core has changed so much, the functions of the star core must have changed even more, but I don't know what kind of surprises the star core can bring to itself?

With a little apprehension and nine points of excitement, Tang Feng ordered: "Star Core, tell me about the specific functions of the Star Core after this upgrade!" ”

"Yes, honorable host! After the star core has been promoted to the fourth level, it has truly stepped into the ranks of the high-level star core. Some of the functions of the Star Core have begun to gradually play their truly powerful role, and if the host can continue to upgrade the Star Core, the various functions of the Star Core will make the host more perfect and give you more control over the planet! ”

For the praise of the star core, Tang Feng just grinned, isn't this nonsense, Lao Tzu has worked hard to upgrade you to the fourth level, if you don't give Lao Tzu some better functions. Lao Tzu won't give you an upgrade in the future!

It seemed to feel what Tang Feng was thinking, and the star core showed the functions after upgrading to level four through the holographic screen one by one.

"This upgrade. The energy required is ten times that of the full amount of third-level energy, and with the sufficient energy provided by the host, the star core has completed the leap from level three to level four, and has truly stepped into the ranks of high-level star cores. After the star core is upgraded to level 4, the space range of the star core is expanded to 1,000 square kilometers, and the detection range is expanded to 10,000 square kilometers. At a depth of 20 kilometers into the earth's crust, the vein condensation time is shortened to one week, and the vein transportation time is shortened to ten days. The functions of vein condensation, vein transportation, deformation, vein carrying, consciousness control, ocean survey, and ontology splitting that were previously possessed by the four star cores continue to be possessed! ”

"In the fourth-level state, the energy required for vein condensation and vein transportation will be automatically adjusted according to the distance transported and the size of the condensed mineral reserves, during deformation exploration and absorption. The star core can have a survey and absorption range of up to 10,000 kilometers and a width of one kilometer. However, during the deformation period, the survey angle can only be maintained within 5 degrees, and if it exceeds 5 degrees, it is necessary to consume energy to carry out a re-deformation survey. (PS: In the past, the survey angle after deformation was not written, which was Xiaomo's negligence, and now the angle restriction during deformation survey is deliberately added.) ）

"At the same time, because the star core has been upgraded to level four, all the original functions have been greatly strengthened, for example, the carrying of ore veins no longer has the restrictions on reserve tonnage and carrying distance; The energy required to form the split is reduced from 90% of the total energy of the star core body in the third-level state to 20% of the total energy, and the energy exchange between the split and the body, and between the split and the split, that is, the energy absorbed by the star core can provide energy for the star core body, but in the current state of the fourth level, the distance of energy exchange cannot exceed 10,000 kilometers. ”

Seeing this, Tang Fengle was happy, this is what he needs. It is not in vain that Lao Tzu risked the danger and worked hard to promote you, and sure enough, after reaching the fourth level, the carrying function of this vein will not have all the restrictions of the third level, that is to say, even if the scale of the corundum mine is larger, Lao Tzu can also move it clean for you at one time!

Well, and the enhancement of this star core split is even better! Not only one becomes four, but the energy consumption required when splitting the body is also reduced to 20%, at the very least, the energy conversion between the split star nucleus split, the split and the main body can be carried out, so that the star core split that can only do the dead work can provide energy to the body, although there is a distance limit, but the distance of 10,000 kilometers is enough for yourself to choose a few points on the earth, and then place the star core split, In this way, you can receive the energy provided by the Star Core Split in most areas of the world!

This is really a very nice change, with this energy exchange function between the star core and the split, many planned things can be implemented!

Tang Feng was very satisfied with the improvement of the original functions of the star core, but when Tang Feng continued to look down, the dense row of words introduced the new functions added by the star core after it was upgraded to level four. (To be continued......)