'Does this silver secret item Thor's Hammer have an unknown powerful attribute?'
'No!'
'Are all the 7 knights of Sacred Light Empire fake?'
'No!'
'Is the 200,000-ton flagship of Sacred Light Empire made of paper?'
'No!'
'Is it luck and coincidence?'
'Of course not!'
…
All the seemingly complex, marvelous or unimaginable events or problems should be simple.
In many cases, simplicity was meaningful, truth and the ultimate direction of the problem.
After sitting on the top of the mountain and listening to the chirps of seabirds in the surroundings for half an hour, Zhang Tie opened his eyes. When he opened his eyes, he didn't look confused anymore; instead, his eyes were sparkling with bizarre immortal light. Behind the immortal light was the gate of another world that Zhang Tie had pushed open.
After eliminating all the impossible reasons, Zhang Tie had already found the answer to the question that had been bothering him.
'There's only one reason why I could launch such a terrifying strike with Thor's Hammer, namely my speed and the weight of Thor's Hammer.'
It was not a complex question. However, Zhang Tie had not imagined that the answer could be so simple. This answer was so simple that the teacher of mechanics class in the No. 7 male middle school in Blackhot City had already told him about it over 10 years ago.
The answer was a simple formula that could even be known by junior middle school students — — 1/2 of the mass of an object multiplied by the square of its speed equals to the kinetic energy of this object!
Kinetic energy! Yes, kinetic energy! The unit of kinetic energy was Joule! This was a simple physical knowledge that had been spread in the human society long before the Catastrophe.
Thankfully, after the Catastrophe, many things in this world had changed; however, this simple kinetic energy formula remained unchanged. It was still a part of the running rules of this world.
Because it was simple, it was neglected by people. Zhang Tie didn't even think about the relationship between this simple knowledge and his battle strength when he raided and destroyed the powerful enemies.
His precise flight speed was 3487 m per second, which was a bit higher than 10 times the speed of sound. It was sensed by Zhang Tie's powerful knight's consciousness.
The weight of Mjolnir was 6.8 tons, or 6800 kg. The weight of Chaos on his body was 600 kg. Together with his own weight, the total weight was 7486 kg. 1/2 of 7486 was 3,743; the square of his speed was 12159169. Therefore, his kinetic energy was 45511769567 Joule.
'What's the concept of over 45 billion Joule kinetic energy?'
According to the teacher of mechanics class, as long as the kinetic energy of a crossbow's bolt was greater than 100 Joule, it would not be a toy in the legal sense; instead, it was a deadly weapon. In some occasions, it couldn't be displayed or carried in the public. This was the definition standard of weapons in Andaman City Federation. Many countries in Waii Subcontinent had stipulated that the lowest standard for crossbow weapons was about 100 Joules of kinetic energy. Some countries would make lower standards such as those whose kinetic energy could reach 90 Joules of kinetic energy could be regarded as weapons; some countries would make higher standards such as those whose kinetic energy could reach 110 Joules of kinetic energy could be regarded as weapons. However, no matter how big or small the standard was, there would not be a great difference in the definition of weapons between countries. Nobody would treat crossbows whose kinetic energy could reach 200 Joules of kinetic energy as toys.
A light crossbow such as the excellent "Iron Gate T21" that Fatty Barley carried in the survival training in Wild Wolf Valley could produce about 800 Joule kinetic energy; a medium crossbow could produce about 2,000 Joule kinetic energy; a heavy crossbow could generally produce more than 4,000 Joule kinetic energy; a few freakishly powerful individual heavy crossbows could produce more than 10000 Joule kinetic energy. The kinetic energy of city-defense steam ballista was generally above 50000 Joule; the kinetic energy of steam centrifugal ballista was at least 2 million Joule.
'What's my kinetic energy at that moment?'
More than 45 billion Joules. This was the answer to the question, and also the biggest secret of his powerful strike.
There were three reasons why Zhang Tie's strike could cause such a shocking effect. Firstly, the most important reason was his terrifying kinetic energy; secondly, the Thor's Hammer was attached with the effect of shattering and lightning bolt; thirdly, his own strength and the power of his battle qi. Only with the combination of the three factors could he crush the 7 knights of Sacred Light Empire into pieces and cause such a terrifying destructive effect.
Zhang Tie became enlightened at once. After figuring out the key points, he sprung up at once with a thrilled look. A wholly new world was opened by Zhang Tie silently.
After standing up, Zhang Tie threw another glance at the scenery in front of him.
The mountain was still the same as what he saw half an hour ago; the sea was still the same. A flock of white seagulls was hovering at the foot of the cliff. The sun had just risen.
Everything in front of him remained the same; however, it had already been different. From the perspective of kinetic energy, the kinetic energy of the mountain was zero; the kinetic energy of the seagulls was greater than that of the mountain; the kinetic energy of the sea waves was greater. What had the greatest kinetic energy was the sun. The orbit of the sun was like a brilliant avenue in the sky … From a certain perspective, this was a world composed of kinetic energy.
In the next second, Zhang Tie directly entered Castle of Black Iron and appeared in the palace tree of Castle of Black Iron.
…
"Castle Lord …" Edward, who had just passed by the lobby of the palace tree with a tool in hand, hurriedly bowed towards Zhang Tie as he was a bit flurried.
"Don't disturb me. I need to think about something!"
Zhang Tie hurriedly passed by Edward and sat down under the small tree. He didn't even throw a glance at the new fruits on the small tree. Closely after that, he sat down with crossed legs and closed his eyes. Closely after that, he activated the trouble-reappearance situation of Xuanyuan Hill and entered Xuanyuan Hill which only belonged to him.
Edward scratched his head as he didn't know why Zhang Tie was so urgent. The moment he walked out of the lobby of the palace tree, he had seen Heller coming downstairs.
"Castle Lord, you're back?"
"Yes, Castle Lord said that he was thinking about something. Don't disturb him!" Edward said respectfully.
Heller waved his hand as he said, "Fine, I see. You can go about your business now!"
After Edward left, Heller came to the lobby of the palace tree leisurely. Standing in the distance, he watched Zhang Tie who was sitting under the small tree with crossed legs and entering the trouble-reappearance situation.
Heller let out a deep sigh as he muttered, "Phew, you've finally reached this step. Castle Lord, if you still don't know what you could do, I don't know whether I should remind you or not. It seems that those jerks of Sacred Light Empire are still useful. After mastering the mystery of the power of kinetic energy, Castle Lord should know your advantages and the direction of your cultivation. Only in such a future could I look forward to it!"
After muttering to himself, Heller shook his head with a smile. After throwing another glance at those new fruits on the small tree, he left the lobby of the palace tree. Heller also knew that Zhang Tie might not come out of the trouble-reappearance situation in a short period. Otherwise, Zhang Tie would not enter the trouble-reappearance situation in Castle of Black Iron.
Of course, Heller could guess what Zhang Tie wanted to do.
…
In the trouble-reappearance situation, Zhang Tie appeared in the manor of Lord Guangnan's Mansion. Like before, Zhang Tie casually broke the LV 9 demon fighter's limbs and threw him aside. Closely after that, Zhang Tie grabbed the metal candlestick and flew out of the window towards a particularly eye-catching building in the distance.
In less than 10 seconds, Zhang Tie had come to the front of the gate of that eye-catching building with loud sonic booms. After throwing away the metal candlestick, he entered the gate which was higher than 50 m.
That building was the library of Xuanyuan Hill in Taixia Country. This library was the largest database of humans so far. This library contained hundreds of millions of books, including many materials before the Catastrophe. Last year, Bai Suxian took Zhang Tie to visit this library. There was the largest difference engine network array in this age in the underground of this library.
When Zhang Tie came here that day, this library was boisterous. All the materials in the library were classified, which could only be accessed by people on the corresponding levels. Some materials were only available to the officials of Taixia Country. Even Bai Suxian couldn't read whatever she wanted here.
This time, there was only Zhang Tie in the entire library. All the guards and staff in the library had disappeared. This place completely became Zhang Tie's own place.
When Zhang Tie and Bai Suxian came here that day, they were not qualified to enter the materials inquiry area above LV 7. This time, Zhang Tie directly came to the top floor of the library and entered the LV 9 materials inquiry area.
The LV 9 materials inquiry area was independent. Each inquiry area was almost as large as a theater. There was no attendant in the room. There was only a terminal inquiry machine which was connected to the difference engine network array in the underground library and a huge black metal curtain wall which was higher than 10 m and wider than 20 m. If Zhang Tie took a closer look at the black metal curtain wall, he would see numerous round metal protrusions which were as dense and tidy as pushpins.
Zhang Tie had heard about such a senior item before; however, it was his first time to see it. This metal curtain wall was one of the most delicate and expensive machines in the world. It was a terminal metal pixel display which was directly connected to the large difference engine. After complex transcoding and translation, the information output from the difference engine would be reflected on this metal curtain wall. It was similar to the combination of movable type printing and the most advanced steam technology in this age …
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