After putting away his Chaos, Zhang Tie revealed his face under the armor. After throwing a glance at Heller and the others, Zhang Tie burst out into laughter …
"Edward, thanks for your hard work these days. The javelin that you've made this time is really good. Your judgment is right. In the kinetic attack, the round-nosed javelin indeed has less resistance than the pointed-nosed javelin. It's also faster …"
Edward felt extremely flattered as he bent down towards Zhang Tie once again, "It's my honor to serve Castle Lord!"
These days, Zhang Tie had been trying to make javelins that were suitable for his kinetic attacks with Edward in Castle of Black Iron. After hundreds of experiments, Zhang Tie confirmed the optimal weight of the javelins without affecting his throwing speed — — 680 kg. Although Zhang Tie could also throw javelins heavier than 680 kg, his throwing speed would be slower. After comprehensive comparison, they finally confirmed the optimal weight.
In the beginning, Zhang Tie and Edward had different opinions on the style of javelins. In Zhang Tie's opinion, the tip of the javelin should be sharper when it moved at a high speed so as to reduce the resistance in the air. However, Edward insisted that the tip of the javelin should be round-headed instead of being too sharp. Therefore, Zhang Tie directly made different styles of javelins for Zhang Tie to experience. After experiencing it, Zhang Tie found that the round-headed javelins made by Edward could indeed fly faster and meet less resistance than Edward's round-headed javelins. By contrast, although the tip of the javelins made by Zhang Tie's design was sharper, they would meet more resistance in the air than Edward's round-headed javelins.
At this moment, there was a row of different spears behind Heller, Edward, and the others. Some were round, some were pointed. Each of these spears was more than two meters long, shining with a golden light. Each spear was made of gold, looking very gorgeous and luxurious.
At the beginning, Zhang Tie had not imagined that he could use gold javelins one day. Before making these gold javelins, Edward had made some javelins using sea-blue iron for Zhang Tie. However, at the sight of those javelins, Zhang Tie almost burst out into laughter.
The thickest part of the javelins made of sea-blue iron was as thick as the mouth of a bowl. However, the middle part of the javelins became smaller so that Zhang Tie could easily grasp them by hand. The structure of the javelins being thicker at the two ends and thinner in the middle looked a bit weird and hilarious. In Zhang Tie's eyes, such a javelin was like a skewer of sausage being roasted. The narrow waist and the excessive part of the javelin's thickness were pretty fascinating.
Zhang Tie didn't want to be laughed out by others when he took out his javelin to kill his enemy in an awe-inspiring manner.
Moreover, the 680-kilogram Sea Blue Iron Spear was too bulky and not nimble enough. Naturally, there was more resistance in the air.
In this case, even though Zhang Tie didn't like to be luxurious, he had to agree to have Edward make javelins using gold. As the first choice of kinetic strike weapons, high-density metal was the best material.
Due to the high density of gold, the 680 kg golden javelins were only a bit smaller than that made of sea-blue iron. However, Zhang Tie didn't feel uncomfortable holding them. Additionally, when Zhang Tie casually waved the golden javelins, he felt that his qi field was different. It was definitely much more powerful than a skewer of sausage. Therefore, Zhang Tie accepted to use the golden javelins.
Zhang Tie walked over there as he held the middle part of the javelins by two hands, one with a round head, the other with a pointy head. Zhang Tie easily held the two 680 kg golden javelins. After carefully comparing the tips of the two javelins, Zhang Tie asked Edward, "Why does the round-head javelin meet less resistance than the pointy-head javelin?"
"Castle Lord, in low-speed flight, the pointy-head javelin definitely meets less resistance than that of the round-head javelin; however, in hypersonic flight, it's the opposite. It's related to very complex aerodynamics and thermodynamics in hypersonic flight. Some features of objects that are not remarkable in common state would become very important in hypersonic state. If Castle Lord wants to know the reason, I can summarize it in one sentence — — the convective heat transfer at the stagnation point of the head is inversely proportional to the square root of the radius of curvature of the head. Passivating the head could reduce the thermal load."
When it came to his own field, even though Edward remained humble, his tone had revealed an unquestionable temperament of a master.
Zhang Tie blinked his eyes. He understood the first half of Edward's words; however, he didn't know what they meant. Even though he was a major craftsman, Edward's words were out of the knowledge and ability of major craftsmen in this age.
Only after thinking about Edward's words for one tenth of a second, Zhang Tie had given up exploring this question. He was not an engineer, nor a scientist. He only cared about the result. As long as he knew what kind of weapon could help him release his battle strength, it would be enough. Through this event, Zhang Tie understood that the so-called common sense had a boundary. Sharp objects had lower resistance in the air than dull ones. This was common sense, which was known by almost everyone. However, this common sense was wrong in the state of hypersonic speed.
"Is there any way to increase the power of this javelin?"
"This spear is made of platinum. Because platinum is denser than gold, the size of this spear can be reduced by about 10% under the same weight, and the resistance when it flies can be reduced by a few percent. Moreover, this spear can be added with Firmness and Sharpness runes …"
"Well, don't use platinum. There are fewer platinum than gold in Castle of Black Iron. Just use gold. Such a small volume and resistance could not influence it too much!" Although being a bit reluctant in the beginning, Zhang Tie determined his mind, "Make 2,000 javelins for me first!"
"2,000?" Edward confirmed it. Watching Zhang Tie nodding, Edward became thrilled at once as he nodded forcefully with great excitement.
"Let's go back to the palace tree. I'm a bit hungry …" Zhang Tie said as he walked towards the palace tree at the foot of the mountain peak.
Each javelin consumed 680 kg of gold, which cost 27200 gold coins. It looked a bit wasteful; however, if a golden javelin could kill a black iron knight, it was not a big deal at all.
After taking the latest fruit of brilliance, Zhang Tie's spiritual energy surged once again. The latest fruit of brilliance could almost match that of the total fruits of brilliance of Han Zhengfang and his son. Because the new fruit of brilliance contained the spiritual energy of 2 throne pastors and 5 chief pastors of Sacred Light Empire, over 10 pastors, chief pastors and some commissioned officers of Sacred Light Empire on the flagship of Sacred Light Empire in total.
With the sharp increase in spiritual energy, Zhang Tie's flight ability as a divine dominator and the power of his kinetic strike increased once again. With a higher flight speed and the 680 kg golden spear, Zhang Tie was sure that his kinetic strike with the 680 kg golden spear was powerful enough to kill a black iron knight even if the black iron knight released his protective battle qi. The power of 12.9 billion Joules of energy in a microsecond was definitely ten times more powerful than that of alchemist's bomb or tons of TNT. Because the former's strike was concentrated at one point in a split second while the latter's strike was spread over a wide range in a short period. Due to the sharp difference in the mode and time of the strike, of course, their power was different.
Today, black iron knights were nothing but ants in front of Zhang Tie.
Zhang Tie finally sensed how domineering the word "dominator" was and the meaning of the word "dominator" — — the one who could determine the life or death of a knight was the dominator!
This might be the real battle mode of a divine dominator. After mastering the secret of kinetic energy battle skills, the battle mode of a divine dominator would be more diversified and would not be limited to the one that Zhang Tie had realized at the beginning. The battle mode of cutting and penetrating the opponent by sharp weapons was actually very elementary for a divine dominator.
As for Zhang Tie, he had silently expanded his battle mode as a divine dominator to three. The first one was the former one; the second one was long-distance kinetic strike by golden javelin; the third one was also kinetic strike; however, it was similar to the kinetic strike that he used to sink the flagship of the expeditionary fleet of Sacred Light Empire. The kinetic strike of a golden javelin could kill a black iron knight; however, the kinetic strike of Thor's Hammer weighing 6.8 tons could easily release 60-70 billion Joules of energy at the speed of 13 times that of the speed of sound. How many earth knights could bear it?
…
Zhang Tie was in a good mood today. Of course, he had a good appetite in the canteen of the palace tree. Zhang Tie enjoyed all the delicacies on the table very pleasantly.
After a delicious meal, it had turned dark in Castle of Black Iron, which indicated that it was also dark outside …
After leaving the canteen, Zhang Tie came to a warehouse in the palace tree, where various plant seeds were piled up.
Now, it was time to solve another problem … (To be continued.)
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