Chapter 1684

Chapter 1677

Anything related to nuclear fusion is dangerous. This is absolutely true, but it is not as scary as most people imagine. After all, the conditions for achieving nuclear fusion are very harsh. Unlike chemical bombs, the explosive energy of nuclear bombs comes from two types of nuclear reactions: nuclear fusion and nuclear fission (the difference between nuclear reactions and chemical reactions is that nuclear reactions occur at the atomic nucleus level and can change the type of elements). Take the atomic bomb as an example. The nuclear material filled inside its body is enriched uranium with a purity of more than 90%. Chain fission of uranium can release huge energy. Nuclear weapons are extremely powerful. After the explosion, they can release extremely strong nuclear radiation. These radiations are released after a large number of uranium nuclei fission.

When it comes to radiation, many people think it is terrible, but when you have a correct understanding of radiation, you will have a new view. Radiation is a phenomenon in which energy diffuses to the outside world in the form of electromagnetic waves or particles. It can be divided into ionizing radiation and non-ionizing radiation. Usually only ionizing radiation can cause greater harm in a short period of time. However, non-ionizing radiation is not that scary. Sunlight is electromagnetic radiation emitted by the sun. Any object with a temperature above absolute zero (minus 15 degrees Celsius) will continue to radiate infrared rays to the outside world. We are exposed to these electromagnetic radiations all the time, but nothing happens.

Uranium (U), atomic number 92, means there are 92 protons in the nucleus. It has three natural isotopes in nature (isotopes are elements with the same number of protons and different numbers of neutrons in the nucleus), namely uranium 238, uranium 235, and uranium 234. Their abundances in nature are 28%, 71%, and 0.06%, respectively. All three are radioactive. Uranium 238 was discovered by Martin Heinrich Klaproth in 1789, and uranium 235 was discovered by Canadian scientist Dunstad in 1935.

Although uranium 238 is highly abundant and can undergo fission, it cannot continue to spontaneously undergo a chain reaction, so uranium 238 is also called depleted uranium. However, uranium 235 can, but its abundance in nature is very low, and it usually coexists with uranium 238, so they need to be separated to purify uranium 235 to a purity of more than 90% before it can be used to make atomic bombs. High-purity uranium 235 can be obtained by gas diffusion, gas centrifugation, etc., but the process is not simple. It takes 200 tons of uranium ore to separate only 1 kilogram of weapon-grade uranium 235.

The nuclear material loaded in the atomic bomb is nuclear-grade uranium 235. Uranium 235 is usually used in nuclear fusion power plants, but the purity of that enriched uranium is only about 3%, which is far less than the purity of nuclear-grade enriched uranium.

In the impression of many people, radioactive substances are very dangerous, not to mention nuclear-grade uranium 235. But the researchers dared to take it with their bare hands, not because they were not afraid of death, but because it was really harmless. Radioactive elements will spontaneously release nuclear radiation, but the three natural isotopes of uranium mentioned above will only emit alpha rays when they decay, and this radiation cannot even penetrate your skin. The outermost layer of skin on the surface of our body is a layer of dead skin, like a thin layer of armor, which radiation cannot penetrate.

In short, direct contact with nuclear-grade uranium with bare hands for a short period of time will not cause any harm to the body. As for natural uranium ore, its radiation level is even lower. However, it should be noted that although direct contact is harmless, it is still harmful if uranium enters the human body. After all, it still has radiation and is a heavy metal.

Once uranium is placed in a reactor to react, the radiation level is much higher, which is very dangerous. Even if you wear protective clothing, you cannot directly contact it. You need to use a robot.

The alloy in Kraven's hand is indeed radioactive, but it is not very dangerous.

"Don't worry, man, the radiation of this thing is not as strong as that of a microwave oven!" This is of course nonsense. The radiation of this thing is still quite strong, but it is temporarily harmless. Wear gloves and don't touch it directly, and nothing will happen.

"What's the use? You don't want to attract those monsters with this thing, do you?" Mark felt a little relieved, but still very resistant.

In fact, anyone who has received elementary school education knows that it is better to be careful with things related to "nuclear".

"Of course! Look around here, there is nothing but snow! I believe they must be starving!" Kraven smiled reservedly, not caring at all that one of his companions had just died: "Believe me, these monsters, they don't actually feed on flesh and blood creatures... otherwise they would have eaten up the earth tens of millions of years ago!"

Titan creatures are actually omnivorous animals. They can eat anything, but their main food is still radiation energy, because the energy conversion rate of other things is too low! If they really hunt, the energy consumed by hunting is far less than the energy converted after eating the prey.

Any living creature is the most cost-effective product of nature, and no creature will do such a loss-making business.

What you eat is not enough to chew food... Then why eat?

Each Titan is huge. Their huge bodies and various unique abilities require a huge amount of energy. If they only rely on eating to replenish this energy, they will die of starvation and still not be able to replenish it.

Therefore, the main way for Titans to eat is to absorb radiation.

Of course, they sometimes satisfy their appetite, but adult Titans rarely have such opportunities... because they are too big, and there are few prey that they can taste when they eat.

After all, they are too big, and they don’t need to chew when they swallow ordinary creatures.

But young Titans can, like the unfortunate King Kong. This guy has been on the island for so many years and has never been full. He can only force himself to hunt and eat some fruits...

The same is true for young Scylla. Although the radiation emitted by Scylla can keep them alive, it is too difficult to get full. After all, the radiation level is too low these days. Even Scylla is hungry, so naturally there is no "milk" to nourish the cubs.

In ancient times, Scylla would not care about their offspring at all. After all, there was abundant radiation at that time, and they didn't need to care after giving birth. Life can find a way out by itself.

If it can't find it, it will starve to death.

The military has discussed whether it is necessary to give these cubs some highly radioactive things to eat... After all, the disposal of those nuclear wastes is also a troublesome matter for the United States itself. It would be better to feed them to the cubs.

But soon their plan was rejected by higher-ups... Yes, feeding the nuclear waste to these guys would naturally save the government a lot of money... But the question is how to deal with these things when they grow up?

The money spent and lost at that time would be much higher than the waste disposal fee!

So, they decided... It would be best to wait for them to starve to death, or wait for them to fall asleep.

In short, don't disturb them.

"Those flesh and blood are just a tonic for them, just like you can like to eat candy, but if you only eat candy... you will definitely starve to death!" He patted the lead box and said: "This is their staple food!"

"Okay, okay, but here?" Snart accepted Kraven's statement, but he looked around... There was a blizzard and the ground was covered with snow: "This is their home ground. We are at a great disadvantage fighting them here."

Kraven looked around.

It seemed to be a mistake... This was not his previous hunting. He could not choose a place when hunting in the past. He would be where the prey was.

It's not possible now!

He was a little limited by his previous experience!

"You are right... Let's go down the mountain and fight in the open!"

After saying that, Kraven planned to take his men away.

At this time, the Sandman spoke up: "We are afraid we can't leave!"

The Sandman was very angry. The wizard was indeed two-faced, but the wizard was his man! However, Kraven's performance just now made the Sandman feel a sense of contempt... He didn't care about the wizard's death at all!

Of course, the Sandman also knew that Kraven didn't need to care about the wizard... He would be happier if he had one less cent!

But the Sandman was still angry.

After all, he saw his future from the wizard's experience. If... he fell into a dangerous situation, this seemingly generous hunter in front of him would never look at him more because of this, and he would abandon him without hesitation!

No one likes to be treated as something that can be abandoned at any time.

The Sandman was even more unwilling.

Of course, he was not stupid enough to turn against him.

"What are you talking about?" Kraven immediately looked around vigilantly!

"Like you said, those things are very good at hunting... Do you think they will let us go?" This time it was Snart, who remained alert.

Kraven immediately understood what they meant.

It seemed to be true.

"Hahaha... Mistake, mistake, I always use my previous experience to look at these monsters, my fault!"

Kraven restrained his smile. He had been looking forward to this hunt for a long time, so much so that he himself forgot that he should always be careful and vigilant!

"Then let's get started!" Kraven took a deep breath, immediately threw away all the tedious thoughts, and prepared to hunt... or be hunted.

"Mark! Disperse the blizzard!"

Kraven said without hesitation.

"We should have done this a long time ago!" Mark was immediately shocked.

As long as he didn't let him face the real Titan beast, he was fearless!

As Mark opened his hands!

Suddenly, the blizzard that had blinded people stopped abruptly!

This made everyone's vision much wider!

"I'll fly up to the sky to take a look!" Mark was about to fly up to the sky to check.

But he was stopped by Snart immediately: "Be careful! Don't act rashly. Do you know what those monsters are like? You dare to fly into the sky. Aren't you afraid of becoming a target?"

Mark froze for a moment.

Indeed, he had even seen the faces of those cubs... How could he know what those monsters looked like and how they attacked?

If he attacked casually, he might be the first to be killed.

"Don't be afraid! They can't hide!"

Kraven admired people like Snart, who was a good hunter.

After saying that, he opened the lead box.

However, nothing happened.

"Hey, hey... Are you serious? You talked so much... But they are still hiding." Mark waited for a few minutes.

But the other three were very serious.

"Shut up!" Snart gave Mark a look: "Did you notice it?"

"What?"

"The temperature has dropped!" As he spoke, frost began to form on the eyebrows of several people.

Rustling...

Then a series of slight sounds came, as if countless insects were crawling!

Here they come!

Now even Mark knew that the other party was coming!

But Mark was immediately stunned.

"Is this thing the baby of Scylla?"

It was a group of spiders... very big, but smaller than expected. About the size of a kitten.

They were snow-white with red eyes. They had been hiding in the snow, and now they crawled out of the snow one after another, opening and closing their mouths, making bursts of rustling sounds. Their eight long legs walked on the snow, not only without making any sound, but also without leaving any footprints!

Their camouflage was very good. In the snow, if you didn't pay attention, it would be really hard to find them.

"Is this thing... really a baby of Titan?"

"Yeah, it's a little small."

If ordinary people saw this thing, they would definitely scream. But who are the people here?

They have all seen it before.

Scylla is the smallest Titan, but it is still nearly 100 meters tall when it stands up! These things in front of them... not only do they look like them, but they are also pitifully small.

It was indeed a bit unexpected.

Bang!

A gunshot.

It was Mark!

Puff!

A small spider was shot and died...

"This..."

Several people were ready to blame Mark for being too reckless.

But before they could say anything, they saw this scene... Too bad, right?

"Then let's just catch one and the mission is accomplished?"

Mark smacked his eyes with a bit of unsatisfaction.

"They are willing to spend 500 million for this thing? Are those rich people crazy?"

On the contrary, the Sandman did not take it lightly: "Something is wrong... I know the wizard's level very well. With the equipment he has, it is absolutely impossible for such a small thing to deal with him silently! There is definitely a problem!"

In fact, he was right!

As the gunshots went off, the spiders suddenly became furious, and then the dead spider was immediately attacked by the surrounding spiders. In the blink of an eye, the spiders scattered, and the dead spider disappeared without a trace, even the juice that had just burst out of the explosion was clean!

This time, everyone was a little terrified.

These things actually killed each other!

On the contrary, Kraven was calmer... It's nothing, many insects in nature have such habits, and even many insects have started to kill each other since hatching.

"No matter! Hurry up and run away when you catch one!"

Snitker was the most pragmatic, no matter what the mess was, just catch one and run away.