Wang Wu looked at the soft and drooping stick, and couldn't help but sigh: "Can you get hard, if it's a man, you will harden me." ”

The pillar of fire throbbed and softened again.

......

Wang Wu seemed to feel a flock of crows flying overhead.

"Is it because of the lack of mental concentration?"

Wang Wu remembered Feng Lingyan's book about the cultivation experience of the system, and began to try to control the changes of the pillar of fire in his hand through spiritual power.

He closed his eyes and focused his thoughts on the pillar of fire in his hand, which slowly raised its head and pointed at the sky at 45 degrees.

Wang Wu shouted excitedly: "It's done!"

This soft pillar of fire finally turned into a two-meter-long and thirty-centimeter-wide fire sword in Wang Wu's hands.

"This is a sword, a real sword!"

Wang Wu said as he slashed the fire sword in his hand at an arm-thick branch next to him.

The sword in the hand falls, and the sword is broken in two.

Well, it's a pity that it wasn't the branch that broke, but the fire sword in Wang Wu's hand.

Wang Wu walked over to observe the place where it was cut, and there was only a hole less than a centimeter in size, but there was a cluster of small flames on the hole, which slowly burned the branches.

The length of this sword is fine, but the hardness is too bad. If you can't improve its hardness, it's really chicken.

Old driver, no...... Old swordsmen know that the thickness and length of the sword are not the most important, and the hardness and sharpness are the most important indicators to judge whether a sword is a famous sword. Western swordsmen preferred to use large swords and long swords, but most of these swords were only superficially imposing, and they were often broken at the touch of a sword in actual combat.

The fourth-layer Vulcan system is bound to be much more powerful than the third-layer, and Wang Wu doesn't believe that it can only be done to this point.

After thinking about it for a while, Wang Wu remembered the manual of Feng Lingyan again, and decided to try to compress the fire sword to make it stronger and solider.

Soon, the 30-centimeter-wide sword, which was compressed to 20 centimeters by Wang Wu, looked thinner and sharper.

The sword fell.

The long sword in Wang Wu's hand continued to slash at an arm-thick branch, cutting it down.

The long sword in his hand was not damaged in the slightest, and the fracture of the branch was very smooth, and the place where the fracture was charred and blackened. Not only is this sword sharp, but its own fire damage increases its lethality.

Wang Wu was still not very satisfied, a sword that could cut down trees could only be regarded as an ordinary weapon.

He slashed the fire sword in his hand at the stone at his feet again, leaving only a few scratches on the whole stone, and the fire sword broke again.

Wang Wu shook his head, the width of this fire sword had to be compressed to at least ten centimeters before it could be used in actual combat.

Throughout the afternoon, Wang Wu practiced the use of the fire sword. Wang Wu's use of the Vulcan system is more of a long-range attack. Whether it is the Gadarin machine gun or the fire dragon spitting balls, they are all under long-range attacks to exert the maximum power.

For melee applications, it's more about wrapping flames around fists to increase the lethality of fists, but the range of the boost is limited.

Now that the fourth tier is unlocked, he can finally make up for his short version of melee and make him more versatile.

Wang Wu can now attack quickly from a distance, can unleash explosive ultimate, has a super strong shield, and if you add melee attacks, it must be the last person your opponent wants to encounter.

In the evening, Wang Wu finally compressed the width of the fire sword to 15 centimeters wide, and the length was still 2 meters.

The sword was red, with flames flowing, and it looked like an iron sword that had been burned by fire.

With a slight wave of Wang Wu, several large trees around him broke off at the waist.

"Yes, that's kind of decent. Wang Wu nodded with satisfaction and returned to the cultivation hall satisfied.

Next, Wang Wu wanted to test the temperature of the flames.

Wang Wuhui wrote down the temperature of each layer. The temperature of the first layer is between 500 and 1000 degrees, the temperature of the flame on the second layer is between 1000 and 2000 degrees, and the temperature of the flame on the third layer is between 2000 and 4000 degrees. The fluctuation in the middle is mainly manifested in the degree of compression of the flame.

In the first test, Wang Wu just released the flame, and after the temperature stabilized, he saw that the instrument showed a temperature of 4000 degrees. Obviously, the temperature of the fourth layer is equivalent to the temperature of the third layer compressed to the extreme.

In the second test, Wang Wu compressed the flame by half, and the temperature of the instrument showed 6,000 degrees, which is equivalent to the temperature of the sun's surface. It looks high, but the temperature at the center of the sun is 19 million degrees, and the coronal layer is frighteningly high.

In the third test, Wang Wu tried his best to compress it, but the temperature only rose to 8,000 degrees, and I don't know if it can be pushed to 10,000 degrees in the future.

The melting point temperature of gold is 1064 degrees, the melting point temperature of iron is 1539 degrees, and the melting point of tungsten used to make filament is only 3410 degrees.

This is just the power of the fourth layer of his Vulcan system, if he reaches the seventh layer and unlocks the arrival of Vulcan, will it reach the temperature of the center of the sun and directly detonate a planet?

Wang Wu was looking forward to the arrival of that day, but he was a little scared, afraid that he would not be able to control this force.

Uncontrolled power, more terrifying than a nuclear bomb, can not only kill the dead, but also have the potential to cause harm to those around you.

Wang Wu decided to practice hard, control the change in the temperature of the flame, do whatever he wanted, and never let tragedy happen to the people around him.

Once you've reached the fourth floor, you'll be able to learn a lot of skills, such as flying. This is one of Wang Wu's most coveted skills.

Human beings have always had a dream of flying, and in order to be able to go to the sky, human beings invented airplanes, but airplanes have never been as free as birds. There are even some people who like to die, and they play wingsuit flying.

People who fly in wingsuits have a rule that they must fly in the middle of the line, because sooner or later something will happen.

I remember that in the last semester, Senior Sister Michelle promised Wang Wu that when he reached LV4, she would teach him to fly.

Wang Wuxing rushed to find Mi Xue and explained his intention.

"Do you want me to teach you how to fly?" Mi Xue looked down and thought for a moment, "but it's tuition." ”

Wang Wu thought of a video on the Internet and smiled secretly: "I'll give you money, you definitely don't want it, then I'll give you a good thing, just use it as tuition!"

"What, take it out and show me. Michelle looked expectant.

"You put your hand out first. ”

"Well, then, do I still have to close my eyes?" Mi Xue asked innocently.

Wang Wu put his hand on Mi Xue's tender white palm and held it tightly: "Do I want it?"

Mi Xue's face turned red all of a sudden, and she gently slapped Wang Wu's chest, and said coquettishly: "It's this old-fashioned routine again, I don't want it, I don't have any sincerity at all." ”

"Whether you want it or not, I'm going to decide anyway. Wang Wu said domineeringly.

(End of chapter)