Under Altheia's shocking explanation, Lu Xiao understood the definition of Dyson ball.

The so-called Dyson sphere is a theory proposed by mathematical physicist Freeman Dyson in 1960.

It is defined primarily as an artificial object that has been artificially modified to use stellar energy as a power source and is itself a natural nuclear fusion reactor.

In the Assassin's Creed worldview, the Isu civilization had similar conjectures, but instead of systematically codifying this theory, Alethea simply followed Freeman Dyson's theory and called it the Dyson Sphere.

What horrifies Alethea the most is that the Dwarve-built Dyson sphere uses not a star, but a neutron star that will surprise the eyes of geoscientists.

Lu Xiao's understanding of scientific theory knowledge is limited, and Aletheia's exclamation does not have much in-depth feeling except that he feels tall, but the "dwarf" living here makes Lu Xiao very speechless.

The dwarves in Thor's mouth are not short, but very large, and their height is generally more than 4 meters, but because the proportions of their bodies are very short compared to other races, they are called "dwarves" by Asgard and other races in the universe.

The dwarves used the neutron star to transform a Dyson sphere for energy, and the main purpose was to use the neutron star's energy to assist them in forging.

…… It is no wonder that the forging technology of the dwarves is the best in the universe, and with neutron stars as energy furnaces, there is no material in this world that they cannot melt.

In order to express his gratitude to Lu Xiao for helping Asgard through the difficulties one after another, the god queen Frigga who ruled on behalf of the god king gave him a small piece of super metal material, Uru.

Uru is a metal material unique to Asgard, which has a considerable amount of energy inside, and can be activated by Asgard's unique Rune Rune, which can exert infinite power.

Weapons forged from Uru metal are said to not only connect with the user's mind, but also have the ability to heal themselves.

However, in contrast to its great power, Uru metal is also very difficult to forge, and ordinary furnaces cannot dissolve and deform it at all.

Only the dwarves of Nidavelle can melt it with the ultra-high temperature of the neutron star, and with the dwarves' exquisite blacksmithing, they can forge this molten iron into powerful weapons in various forms.

Ulu metal is a very valuable treasure, even Asgard's inventory is not much, although the gift to Lu Xiao is only a very small piece, but it is enough to show Asgard's sincerity.

The dwarven king Atri was also taken aback when he saw the Uru metal in Thor's hand, "It's really strange, Asgard hasn't commissioned me to build a weapon out of Uru metal for thousands of years. ”

Taking the small ball of Uru metal from Thor, Atri, who is more than 5 meters tall, tossed it in his hand and asked jokingly, "Thor, who is the weapon for?" ”

"That's enough material to make two little daggers, and has the old and strong Odin added a new brother and sister to you? Hahahaha! ”

Thor angrily smashed a punch on Atri's stomach: "Don't be kidding, this is a thank you gift from the queen mother to Lu." ”

"Huh?"

Puzzled, Atri lowered his head and looked at the stranger beside Thor: "Is this the little one?" What exactly have you done to Asgard? ”

"Uru metal has always been regarded as an important treasure by Odin, and it will only be given to the Asgardians who have made great achievements, and there has never been a record of giving it to outsiders before."

Lu Xiao did some homework before entering the Marvel Cinematic Universe.

Ulu metal is basically not mentioned in the Marvel Cinematic Universe, but in the Marvel comic book universe, it is known as the four major metals of Marvel along with vibranium, Erdman and Kapenner.

Needless to say, Captain America's shield with amazing strength is added to some vibranium, which can greatly absorb kinetic energy and heat, and its defensive power is very amazing, and vibranium is also called sound-absorbing steel by some people.

There is relatively little information about the Carpenaga, except that the two Carpena knives used by Deadpool can block Wolverine's self-healing abilities.

And the famous Erdman alloy is even more well-known, Wolverine got its name because his body was infused with this indestructible man-made synthetic metal.

Most of the weapons in the hands of the high-ranking Asgardian generals were mixed with some Uru metal, including Vandall's longsword, Hogan's chain hammer, and Vostagg's battle axe from the Asgard Three.

In addition, the double-headed sword in the hand of the female warrior Sif is also forged from Uru metal, and even the storm battle axe that Thor will hold in the future also makes use of this ultra-high-strength material.

"Nice to meet you, King of the Dwarves, Atre."

Lu Xiao first bowed politely to Eri: "There is no need to forge a dagger, I hope to forge this piece of Uru metal into two Hidden Blades." ”

"Boom!"

Lu Xiao popped out the hidden blade in the left and right arm armor and showed it to Ai Cui: "It's like this." ”

"Hmmm......"

After Lu Xiao took off his arm armor and handed it to Ai Cui, the dwarf king looked at the different delicate designs in the two sets of arm armor with interest.

"Interestingly, the left arm armor has a small folding crossbow built, and the right Hidden Blade is bound to a very primitive powder gun."

Seeing that Etrei was happy to hunt his heart, he sat cross-legged on the ground, ignoring the sound of iron striking everywhere in Nidavel, and thought silently for a while before speaking again.

"Lu, it's not difficult to simply forge a pair of Hidden Blades, and you don't even need me to take action personally, but this set of burst powder guns integrated in the armor of your right arm ...... I suggest you can make some modifications. ”

"The design itself is very elaborate, and I can't fault it, but this gunpowder weapon is so backward that when combined with a weapon made of Uru metal, it's like a delicious cake topped with moldy strawberries."

Lu Xiao smiled bitterly and spread his hands: "The idea of design and transformation will be handed over to you, Your Majesty Ai Cui, this set of arm armor was also made for me by a friend, and it is not bad to use on the earth, but in your eyes, it may indeed be a little out of the times." ”

Isn't it, even with the knowledge of the golden apple, the weapons of the 15th century are used today, but it is not strange. ’

Ai Cui patted his thigh happily: "No problem, leave it to me, I guarantee that the final product you get will satisfy you." ”

The dwarven king Atrei had never forged such a small weapon before, and this time it was a joy to see the hunt.

But there was a problem before starting to build, Nidavile didn't have a mold to do with it, so Adrri had to forge it by hand from scratch.

According to his predictions, the whole process of design plus forging will take about a month.

Converted into a Dyson ball, Nidavile is not very inhabitable, with few entertainment facilities other than the dwarves' favourite bars.

Thor quickly assimilated into the dwarven life, spending his days drinking and merry-sharing with the dwarves who were not working, chatting about Asgard's glorious past, and bragging about his future.

Lu Xiao did not waste time on pleasure, for more than a month, he still maintained the self-discipline habit of meditating and exercising at night and contacting spells during the day.

After drinking, Thor often goes crazy and uses alcohol to learn from Lu Xiao.

The gap in physical fitness between the two is still huge, and Lu Xiao has no chance of winning in a head-to-head battle.

However, in the daily confrontation with Thor, Lu Xiao gradually figured out the straightforward Thor's usual attack routine.

As long as he doesn't use Thor's hammer to trigger a wide range of lightning spell attacks, Lu Xiao can occasionally steal a victory in the hands of Thor, who is drunk and mixed with garlic at his feet.

A month passed in a hurry, and when the black-and-gray Atri found Lu Xiao with the forged weapon, Thor was sleeping on his back in the next room, snoring gracefully at all.

"It's done, Lu, come and try it!"