When he came back to his senses, Lei Luo looked back and saw that the faint firelight emitted by the bonfire had completely disappeared in the direction he came from, where his teammates gathered.
Judging from the tilt of the body along the way and the feedback from the feet, the depths of this cave seem to be a slope leading to the ground.
"Is it so deep here?"
Feeling that his body was slightly tilted forward, Lei Luo circulated chakra and concentrated it on the soles of his feet. After he stabilized his posture, he looked around again.
This place seems to be deep underground. What is under your feet is no longer a hard rock cave wall, but a faint moist feeling of soil. The surrounding area is also pitch black, with only some ores emerging from the soil on both sides.
It is still emitting a glowing light and can barely be used as lighting.
But compared to the stalactite cave on the surface, which is mostly made of crystals and has different colors of ore, the color of the ore here is quite monotonous, and the light it emits is much dimmed.
They all present a kind of dark green with a light yellow tint, and a faint asphalt-colored luster. They look very strange, giving people a somewhat eerie feeling, like a ghost.
For a moment, Lei Luo felt that these ores exuded an inexplicable weirdness, and gave him a vague sense of familiarity.
So, he casually dug out a fist-sized piece of green ore from the soil beside him, held it in front of him and observed it.
"I should have seen this somewhere before..."
Fidgeting with the ore in his hand from left to right, looking at the light green light emitting from its surface, Lei Luo quickly searched the memories in his brain, trying to find the actual source of the familiar feeling before.
One second, two seconds... one minute, two minutes...
After more than ten minutes had passed, Lei Luo suddenly remembered where he had seen this kind of ore.
If he guessed correctly, this thing... seemed to be somewhat similar to the ore he had seen in a certain scientific research article in his previous life. During a certain mission, he happened to have seen this kind of ore with his own eyes, and
Touched it once.
No matter in terms of shape, color, touch, or the spiritual feeling it brought to him, the ore in his hand seemed to be very similar to the ore in his previous life.
Could it be that……
"Is this... uranium ore?"
Lei Luo squinted his eyes and carefully looked at the light green stone in his hand that was faintly transparent and like crystal. He murmured a question in his mouth and held up the ore.
The palms of his hands were trembling slightly unconsciously.
But naturally no one answered him at this time.
Therefore, in order to verify his guess, Lei Luo decided to conduct relevant experiments as soon as possible to determine whether the ore in his hand was the kind of uranium ore he had seen in his previous life.
If it was really uranium ore... Lei Luo's eyes flashed crazily. He suppressed all the thoughts that were rushing into his heart and began to recall certain experimental steps that he had learned about in his previous life.
It is a rare thing for Lei Luo to be so excited, and there is only one reason why his mood can be shaken to such an extent:
Uranium ore is the main raw material for manufacturing nuclear weapons.
If I would like to briefly introduce the principle of this, first of all, uranium ore is a radioactive and dangerous mineral.
Uranium is an extremely rare radioactive metal element. The average content in the earth's crust is only two parts per million, making it extremely precious.
Uranium mainly contains three isotopes, namely uranium 238, uranium 235 and uranium 234. Among them, only uranium 235 is a fissile nuclear element. It can undergo a chain nuclear fission reaction under neutron bombardment and can be used as nuclear charge for atomic bombs and nuclear power plants.
Reactor fuel.
Relevant information quickly flashed through Lei Luo's mind. He held what looked like uranium ore in one hand and quickly formed several seals with the other hand.
"Water Release. The Art of Kirigakure."
Silently, a thin mist enveloped the dim underground space, covering most of the light emitted by the surrounding ores. Only the faint light could barely be seen.
The Kirigakure Technique was obtained by Lei Luo by searching the memories in his brain, but this technique was really useless to a ninja at his level, so he never used it in battle.
However, now it can be used for experiments, and it can be regarded as waste utilization.
In order to better observe the properties of the ore in his hand, Lei Luo made some adjustments to the Hidden Mist Technique, reducing his own chakra output so that the concentration of the mist it emits is not high, forming a kind of mist that he uses.
In previous lives, the experimental environment that could be used to detect the presence of nuclear radiation was the cloud chamber.
This is done to better observe every subtle change of the ore in the water mist, and strive not to miss the slightest detail.
Lei Luo opened his eyes wide, and with the help of the faint radiance emitted by other ores around him, he stared unblinkingly at the ore in his hand and the mist floating around it.
In the slightly dark space, Lei Luo stood quietly in his place, keeping a close eye on the ore and the fog surrounding it, without showing any sign of impatience.
He was waiting, waiting for changes to happen, waiting for the ore in his hands to show its true nature.
That is, radioactivity.
A few minutes passed. Suddenly, Lei Luo's eyes narrowed:
He saw an invisible, extremely tiny column of air emanating from the surface of the ore, flying into the surrounding fog, and then disappeared after passing a short distance of more than ten centimeters.
These air pillars are a force, a force that appears out of thin air, a force that is transparent and like air bombs.
Its speed is so fast that it can be said to be fleeting.
The reason why it was detected was because Lei Luo noticed:
In the fog, the path it passed left a tiny trail along the way, a trail that was almost imperceptible to the naked eye, as if some ants, or even smaller transparent substances, suddenly passed there.
Immediately afterwards, this first wave was like a fuse. After it drew a transparent trajectory in the mist, more invisible waves sprang out from the surface of the ore.
The scene at this moment is like the ore suddenly turning into a sun that is constantly emitting rays of light, sending countless invisible forces to the surroundings, leaving dense vacuum trails in the mist.
It is also like countless invisible mosquitoes and flies that quickly jumped out from the surface of the ore. After a short journey, they left extremely tiny tracks in the water mist and then dissipated.
Taking in all the changes near the ore, Lei Luo finally came to the conclusion that the ore in his hand was the famous uranium ore in his previous life.
The countless waves that are constantly emitted into the water mist also had a famous name in Lei Luo's previous life: that is, nuclear radiation.
After the chakra in the Kirigakure Jutsu gradually became unsustainable and the water mist around him gradually dissipated, Lei Luo was speechless for a long while holding the piece of uranium ore that seemed to have returned to normal on the surface.