Volume 41 Chapter 13

The Chaos armor was put away by Zhang Tie at once, revealing Zhang Tie's face under the armor. Zhang Tie glanced at Haile and the others, and laughed...

"Edward, you have worked hard these past few days. The flying spear you made this time is really good. Your judgment is correct. In the kinetic energy attack, the flying spear with the round head is indeed better than the pointed one during the flight. The flying spear has less resistance and faster speed..."

Edward was flattered, and bent his back to Zhang Tie again after straightening up, "It's my honor to serve Lord Castle Master!"

In the past few days, Zhang Tie and Edward have tried to produce a flying spear suitable for his kinetic combat skills in the Black Iron Fortress. The optimal weight of the flying spear used is 680 kg. Although Zhang Tie can also throw the flying spear exceeding this weight, the throwing speed is not so fast. After a comprehensive comparison, the weight is finally determined.

At the beginning, Zhang Tie and Edward had some differences on the style of the flying spear. In Zhang Tie's opinion, when the flying spear is moving at high speed, the top part of the flying spear should naturally be sharper. Because this can reduce the resistance of the flying spear in the air, but Edward insisted that the head of the flying spear should be rounded and there is no need to make it too sharp. The two had a disagreement, and Edward simply made different styles of flying spears Let Zhang Tie experience the effect himself. Zhang Tie has just experienced it. He really found that the flying spear with the same weight and the round-headed flying spear made by Edward's plan can indeed fly faster and encounter less resistance. The flying spear made with his own plan has a sharper head, but when flying in the air, the resistance will be greater than Edward's round-headed flying spear.

At this moment, behind Heller and Edward, there is a row of different flying spears, some with round heads and some with pointed ends. Each of these flying spears is about two meters long, shining golden, and each The roots are all made of gold, which looks very gorgeous and luxurious.

At first, Zhang Tie didn't expect that he would use gold flying spears one day. Before these golden flying spears were cast, Edward actually used sea blue iron to cast several flying spears for Zhang Tie, but those few flying spears were cast After coming out, Zhang Tie almost laughed when he saw it.

Because the thickest part of the spear body made of sea blue iron is almost as thick as the mouth of a bowl, while the middle part of the spear body becomes thinner, making it easier for Zhang Tie to grasp it with his hands. The structure of the flying spears, which are thick at both ends and thin in the middle, looks a bit weird and funny. From Zhang Tie’s point of view, such flying spears are just like a bunch of sausages prepared for barbecue. The waist and the excessive part of the thick and thin part are extremely ecstasy. If you look carefully, you will make people laugh.

Zhang Tie didn't want to make people laugh out loud when he took out his flying spear majestically to kill the enemy one day.

Moreover, the body of the 680-kilogram sea blue iron flying spear is too bulky and not dexterous enough, so the resistance to flying in the air is naturally greater.

Under such circumstances, even if Zhang Tie didn't like extravagance, he had to agree to let Edward use gold to make himself a flying spear. As the first choice for kinetic strike weapons, high-density metal is the best material.

The density of gold is very high. The 680 kg gold flying spear is made, and its size is only half of the flying spear made of sea blue iron. Zhang Tie does not feel inappropriate when holding it in his hand. Zhang Tie of the Flying Spear, he felt that his aura was a bit different, and it was definitely 10,000 times stronger than taking out a bunch of "sausages".

In this way, Zhang Tie accepted to use the golden flying spear.

Zhang Tie walked over, holding the middle of the flying spear with both hands, a round-headed flying spear with one hand, a pointed flying spear with the other, and two 680-kilogram gold spears. The flying spear was easily held by Zhang Tie. Zhang Tie carefully compared the tips of the two flying spears, and asked Edward, "Why does the round-headed flying spear encounter more resistance than the pointed one? What about smaller?"

"My lord, when flying at low speeds, the pointed-pointed flying spears must encounter less resistance in the air than round-headed ones, but in the state of hypersonic flight, the opposite is true. There are very complicated things involved in this process. The problems of aerodynamics and thermals in the flight state of hypersonic objects, some characteristics of some objects that are not obvious in the normal state, will become very important in the state of hypersonic speed, if the master must want to know the reason , then, in one sentence, it is the self-similar solution of the hypersonic laminar boundary layer equation. The convective heat transfer at the head stagnation point is inversely proportional to the square root of the head curvature radius. Passivating the head can reduce the thermal load .”

When talking about his own field, even though Edward still remained humble, his tone revealed an undeniable mastery.

Zhang Tie blinked. He understood the first half of what Edward said, and he understood every word in the second half, but he didn't know what it meant when they were put together. Even if he is a master craftsman, what Edward said is beyond the knowledge and ability of a master craftsman in this era.

Just flashing Edward's words in his head for a tenth of a second, Zhang Tie gave up exploring this issue. He is not an engineer, let alone a scientist. He only cares about the results, as long as he knows what kind of weapon is easy to use, You can let your own combat power explode. Only through this incident, Zhang Tie understood that the so-called common sense has its boundaries. Sharp objects have less resistance in the air than blunt objects. This is common sense, and almost everyone knows it. At the speed of sound, this common sense is wrong.

"Is there any way to increase the power of this flying spear?"

"A flying spear made of platinum, because platinum is denser than gold, under the same weight, the volume of this flying spear can be reduced by about ten percent, and its resistance during flight can be reduced by a few more. In addition, this flying spear can add a rune of solidity and sharpness..."

"Well, don't use platinum anymore. The platinum in the Black Iron Castle is not as much as gold. Just use gold to cast it. The size and resistance will not have much impact!" Although I was a little reluctant at the beginning, once I made up my mind , Zhang Tie no longer hesitated, "Cast me two thousand first!"

"Two thousand?" Edward confirmed it. Seeing Zhang Tie nodding, Edward immediately became happy and nodded vigorously. He was very excited.

"Let's go, let's go back to the palace tree, I'm a little hungry..." Zhang Tie took the lead and walked towards the palace tree below the mountain.

Each flying spear consumes 680 kilograms of gold, and 27,200 gold coins are gone as soon as it is thrown. This seems a bit wasteful, but if a golden flying spear can kill a black iron knight, then this investment is nothing.

After eating the latest fruit of brilliance, Zhang Tie's mental power surged again. The latest fruit of brilliance is almost comparable to the combined fruit of brilliance of Han Zhengfang and his son, because that fruit of brilliance contains not only The empire's two throne chief shepherds, the spiritual power of the five scepter chief shepherds, the shepherds and chief shepherds of all levels of the Holy Light Empire on that flagship, and some officers add up to ten people, The spiritual power of those people is also contained in this latest glorious fruit.

The sudden increase in mental power brought about another improvement in the flying ability of the gods and masters, and the power of Zhang Tie's kinetic energy strikes was once again enhanced. With a higher flying speed, coupled with the 680 kg golden flying spear, the flying ability of Zhang Tie was improved again. After the inspection, Zhang Tie was able to confirm that the power of the kinetic energy strike with the 680 kg golden flying spear he was using now was enough to kill the black iron knight. The power of billions of joules of energy concentrated in one point and erupted in microseconds is definitely ten times more powerful than the explosion of alchemy bombs and tons of TNT explosives, because the attack of the two is concentrated in one point and erupts instantaneously. An attack spreads out over a large area and erupts in a short time, because the difference between the eruption method and the eruption time is too large, so the power is naturally different.

Today, the black iron knight will be completely reduced to an ant for Zhang Tie.

Now Zhang Tie finally felt how domineering and the meaning of the word "master" is in the word "master" - the person who can decide the life and death of a knight is the master!

This, perhaps, is the real fighting style of a god master. Mastering the mystery of kinetic combat skills, the god master's fighting style will be more diverse, and it will no longer be limited to the one he realized at the beginning. The fighting method of using sharp and sharp weapons to cut and pierce the opponent is actually very elementary for the master of the gods.

For me now, the fighting style of my god-controlling master has actually quietly expanded to three types, the first is the previous one, the second is to use the golden flying spear to carry out long-range kinetic energy strikes, and the third is the same It was a kinetic attack, but it was a kinetic attack in close combat, just like the attack that sunk the flagship of the Holy Light Empire's expeditionary fleet. The kinetic energy strike of the golden flying spear can kill the black iron knight, and the kinetic energy strike of the 6.8-ton Thor's Hammer at more than 13 times the speed of sound can easily release 60 to 70 billion joules of energy, and several earth knights can easily Can you bear it?

...

Zhang Tie was in a good mood today. When eating in the restaurant of Palace Tree, he naturally had a big appetite. The table was full of delicacies.

After eating a delicious meal, the sky inside the Black Iron Fortress turned dark, which meant that the outside world was also getting dark...

Zhang Tie left the restaurant, and then went directly to a warehouse of Palace Tree alone. In this warehouse, seeds of various plants were piled up.

Now, it's time to solve another problem...