Chapter 1236: 1236
Chapter 1236: In the Name of the Dominator
Translator: WQL Editor: Aleem
Zhang Tie immediately put away his Chaos and revealed his face . Closely after that, he threw a glance at the other 4 people in Castle of Black Iron as he burst out into laughter . . .
"Edward, well done . Your spears are indeed great . Your judgment is right . In kinetic energy strike, round-end spears indeed face fewer air-resistance than pointed-end spears at higher speeds in flight . . . "
Edward was overwhelmed by an unexpected favor . Therefore, soon after he straightened up, he bowed towards Zhang Tie once again as he said, "It's my honor to serve Castle Lord!"
These days, Zhang Tie and Edward were producing proper spears in Castle of Black Iron . After hundreds of times' experiments, Zhang Tie finally fixed the most proper weight of his spear as 680 kg on the premise that the spear didn't weaken his velocity of throwing . Although Zhang Tie could also throw a heavier spear; his velocity of throwing could not be such great . In general comparison, they finally fixed this weight .
In the beginning, Zhang Tie's and Edward's opinions were divided on the pattern of spear . In Zhang Tie's opinion, when a spear flew at a high speed, its end should be pointed in order to reduce the air resistance; however, Edward insisted on that the end of the spear should be a bit rounder . In order to convince Zhang Tie, Edward produced spears in different patterns for Zhang Tie . After having a try, Zhang Tie found that round-end spear could really fly faster than sharp-edged spear on the premise that they had the same weight . It was out of Zhang Tie's imagination that sharp-edged spear had to face a greater air resistance than a round-ended spear in flight .
A row of spears with round ends and sharp ends were put behind Heller and the other 3 servants . Each spear was about 2 m in length . Being made of gold, they looked very brilliant and luxurious .
It was out of Zhang Tie's imagination that he could use golden spears one day . Before producing golden spears, Edward had made some spears using navyblue iron . However, at the sight of those spears, Zhang Tie almost burst out into laughter .
The thick parts on both ends of those spears made of navyblue iron were 20 cm in thickness; however, the middle part of the spear turned slim for the sake of hold . This structure looked weird and funny . It looked like a sausage on a bamboo stick . At the sight of the slim waist and the thick ends of the spear, Zhang Tie couldn't help but laughing out .
Zhang Tie didn't want to arouse laughter when he intended to kill his enemy by spear in an imposing manner one day .
Additionally, the body of spear made of navyblue iron was too thick; of course, it would face a greater air resistance in flight .
In this case, even though Zhang Tie disliked being luxurious, he had to allow Edward to build gold spears for him as gold was the best high-density metal for making kinetic energy weapon .
Due to a greater density, the golden spear was smaller than half the size of a spear made of navyblue iron . Zhang Tie didn't feel improper holding it; additionally, he could casually make some poses with a golden spear . With a golden spear in hand, he felt having a much greater qi field than that of the "sausage" . Therefore, Zhang Tie accepted a golden spear .
Zhang Tie walked over there and took up a round-ended spear and a sharp-edged spear by holding the middle part of the golden spears at the same time . After comparing with the ends of the two spears carefully, Zhang Tie asked Edward, "Why does this round-ended spear face a smaller air resistance than a sharp-edged spear in flight?"
"Castle Lord, in low-speed flight, sharp-edged spear definitely meets a smaller air resistance than that of a round-ended spear; however, it's reverse in hypersonic flight . It's involved with very complex aerodynamics and thermotics in hypersonic flight . Some indistinctive features of some objects in the common state would grow significant in the hypersonic state . If Castle Lord wants to know the reason, please refer to the self-similar solution of the flow boundary layer equation of laminar flow in hypersonic speed . The convective heat transfer on the end stagnation point is inversely proportional to the square root of the radius of curvature on the end . By making the end a bit rounder, we could reduce thermal load . "
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