1900: A physics genius wandering around Europe

Chapter 488: Terrifying Electromagnetic Energy! The lightning dancing on your fingertips is my everlasting faith!
Those who came to give the lecture today include almost all the best scientific talents in Italy.

Their level is the best of this era and their knowledge is the broadest.

The moment Li Qiwei mentioned Avogadro, everyone's heart was shaken and they felt proud.

It is just like when Chinese people go abroad and hear foreigners praising the Nine Chapters on the Mathematical Art.

It's a sense of national pride.

And now, with Li Qiwei's identity, it is even more extraordinary.

Both the mass-energy equation and Fermi's kinetic strike are based on Professor Bruce's special theory of relativity.

But now, the other party himself mentioned and admired Italian scientists.

This action instantly turned everyone in the venue into fans.

“Professor Bruce is very knowledgeable about the history of science in Italy and he recognizes Italy’s contribution to science.”

"How sad! When will Italy's scientific glory return?"

"Professor Bruce really does adapt to local customs."

"I just want to know, what does Avogadro have to do with destroying the earth? Is there any hidden achievement he hasn't published yet?"

After the pride, everyone started to make wild guesses.

However, Pauli frowned when he heard Avogadro's name.

He murmured:

“Is it Avogadro’s constant?”

"Although the number NA is very large, the water film just now has proved that the number of atoms in a drop of water is not enough to cover the earth."

"Otherwise, Avogadro's achievements would probably be useless."

Pauli was a little confused.

suddenly!

A light bulb went off in his head!
wrong!

In addition to the number of atoms in a drop of water, there is another thing that is also at the NA level.

Maybe that's the answer!
Pauli quickly took out the pen and paper and started calculating.

If it is as he expected, then the calculation will be a little more complicated.

With his level of expertise, Coke couldn't figure it out, and only Dirac could do it.

Under everyone's eager gaze, Li Qiwei finally spoke.

"My answer is different from Fermi's."

"Fermi relied on external forces, while I used the properties of a drop of water itself."

"That's the charge!"

Wow!
Everyone was shocked!
This idea took everyone by surprise.

"Electric charge? How much charge can a drop of water have? How can it destroy the earth!"

"Well, a drop of water seems to have a lot of electric charges, but what are these charges for? The total amount is very small."

"Professor Bruce is indeed different from ordinary people. His ideas are always so wild and unconventional."

However, most people were not immediately excited.

Because they couldn't figure out what the electric charge of a drop of water could do and how it could destroy the earth.

When Pauli heard this, a gleam of light flashed in his eyes!
"It's just as I thought!"

"Professor Bruce and I are so in tune with each other!"

Li Qiwei smiled lightly and continued:

"My solution is to remove all the electrons from a drop of water in an instant."

hiss!
As soon as these words were spoken, there was a sensation in the venue!

What does it mean?
Everyone was immediately stunned.

"My goodness, what happens when you remove an electron from a drop of water?"

"Can this destroy the world?"

"There is so much water in the ocean, and it evaporates into space every day, but the Earth has not been destroyed."

“I don’t understand it at all.”

"."

At this moment, many geniuses who were known as excellent students in school were also dumbfounded.

They couldn't figure out what Professor Bruce's answer meant.

Remove electrons from a drop of water?

Will this have any big impact?

I feel like there is no impact at all.

Even many professors find it difficult to understand.

Vecchio looked puzzled.

"Does Professor Bruce want to rely on the electromagnetic energy of a drop of water itself?"

"But how can electromagnetic energy be compared with the conversion of mass-energy equation?"

“The two are not on the same order of magnitude.”

Vecchio shook his head slightly, puzzled.

However, Fermi was suddenly shocked, and like Pauli, he seemed to have grasped the key point.

"Could it be that you want to affect the voltage or potential of the entire earth through the transfer of electric charge?"

God!

What a bold idea!
Under the confused expressions of the crowd, Li Qiwei said again:

"I will also use the data of the first student."

"Assuming the volume of this drop of water is 0.05 milliliters, then the mass is 0.05 grams."

"Converted into moles, that's about 0.0028 mol of water molecules."

"So, the total number of electrons contained in this drop of water is 0.0028×NA=0.168×10."

"It is known that the charge of a single electron is 1.6×10 (negative 19th power) coulombs."

"Then the total charge of the electrons in a drop of water is 2688 coulombs."

"If I remove all the electrons from the water droplet in one instant and they disappear, then the electrical potential of the Earth will change."

"Using Pauli's data, the radius of the Earth is 6300 kilometers."

"Then, according to the electric potential formula φ = kQ / r, plugging in the data, we get: φ = 3800000 volts."

"That is, the earth's electrical potential will increase by 3.8 million volts."

"Once the earth's electric potential increases, it will inevitably cause changes in the earth's magnetic field."

"Changes in the Earth's magnetic field will not only cause violent activities such as earthquakes and tsunamis, but will also affect the activity of the solar wind."

"Once the Earth's atmosphere and magnetic field can no longer block the solar wind, the Earth will be bombarded by it constantly."

"Sooner or later, the entire earth will be destroyed!"

"Of course, it is impossible to just remove the electrons from the water and keep the water molecules in their original shape."

"Because without the electrons, the atom would instantly disintegrate and cease to exist."

"According to calculations based on classical electromagnetism, the energy generated by this process is approximately 8×10 (18th power) joules, equivalent to 20 billion tons of TNT equivalent."

"In other words, it would take this much energy to remove all the electrons from a drop of water."

quiet!
Deathly silence!

When Li Qiwei finished his answer, the entire hall was silent and you could hear a pin drop.

Everyone's eyes widened in disbelief.

They were in extreme shock!
A drop of water can have such a huge impact on the earth.

It is simply unheard of, like a fairy tale, and it really goes beyond common sense perception.

too exaggerated!

I do not know how long it has been.

There was a loud bang in the hall, and it was boiling.

Everyone started a heated discussion.

"Oh my God! This is incredible! A drop of water can raise the electric potential of the entire earth by millions of volts?"

"If there is a little more, it can reach hundreds of millions of volts!"

“This is the real brain hole!”

"No wonder Professor Bruce didn't like Fermi's answer."

"His answer was so cool, it was like something out of a science fiction novel."

"Aliens came to Earth and destroyed the Earth by taking just one drop of water, and the people on Earth didn't know what was going on."

"."

The atmosphere in the hall reached its climax at this moment.

Professor Bruce's answer was beyond everyone's imagination. When everyone was applying various high-sounding theories, he actually chose electromagnetism from classical physics.

Turn decay into magic!

If foreigners knew this Chinese saying, they would definitely be unable to resist saying it out loud.

However, this answer is a bit difficult to understand, so someone asked:

"Professor Bruce, I have a question."

"If the electromagnetic energy equivalent to 20 billion tons of TNT is contained in this drop of water, then it would contradict the special theory of relativity."

"Because the energy in the mass-energy equation should be all the energy that the object itself possesses."

"How can it be so much smaller than electromagnetic energy?"

"I don't understand that."

At this time, Li Qiwei smiled slightly and glanced at Pauli.

"Close the door and release Pauli!"

Pauli understood immediately and explained:
"The electromagnetic energy that Professor Bruce is talking about does not actually come from the water itself, so it has nothing to do with the mass-energy equation."

"Let me give you a vivid example."

"It's like if you lift an apple to a very high altitude, the apple itself does not change."

"But at this moment, it has a very high gravitational potential energy."

"Once you do it, the apple will fall to the ground with impact."

"The same is true when you take all the electrons out of a drop of water. You need to overcome the electric potential energy in the huge system of the earth and the electrons."

"If it were taken out in an instant, the energy equivalent to 20 billion tons of TNT would explode in a drop of water."

“It’s impossible to imagine what the real circumstances of this explosion were.”

"Of course, humans don't have the technology to do this at the moment."

“Perhaps only the advanced civilizations in “Bugs” can have such incredible technology.”

Although Pauli has a bad mouth, his strength is unquestionable.

His explanation was very clear to everyone.

The terrifying electromagnetic energy contained in a drop of water does not come from itself, but from the earth system.

But this energy is closely related to water droplets and is indispensable.

So strictly speaking, the answer still depends on the properties of the water droplet itself.

At this time, someone asked again:

"If humans can land on the moon one day in the future, and if we bring a drop of water to the moon, won't this happen as well?"

When Pauli heard this, he almost jumped up and cursed.

However, in this situation, he still answered patiently:
"This situation is different from what Professor Bruce said."

"If you bring a drop of water from Earth to the Moon, the electrical potential of the Earth itself will not change at all."

"Because that drop of water is neutral, when you take away the electrons, you also take away the protons."

"The only thing that changes is the gravitational potential energy."

The questioner suddenly realized that he had made a common sense joke and was so embarrassed that he quickly sat down and covered his face.

Many people present did not know Pauli, and Li Qiwei did not introduce him specifically.

So everyone thought Pauli was a student brought in by Professor Bruce.

"The Quantum Research Institute is indeed full of talented people. Any young person is so awesome."

"I think he's even crazier than Professor Bruce."

Fermi heard everyone's discussion and smiled secretly.

If they knew Pauli's true identity, they would probably be shocked.

Soon, everyone had no more questions.

They were all shocked by the horror of electromagnetic energy.

If a person could move electrons at will, they would be invincible!

She just needs a coin and toss it upwards:
"The lightning dancing on your fingertips is my everlasting faith in this life!"

"Only my railgun will live forever!"

This is the charm of electromagnetic energy.

Femi smiled softly.

He finally understood why Professor Bruce didn't like his answer.

Comparing the two, one is a gentleman and the other is a reckless man.

No normal person would have thought that the electrons in just a drop of water could have such a huge impact on the earth's electric potential.

Totally counterintuitive.

It is exactly the same as the original special theory of relativity.

As for what Professor Bruce said later, whether changes in electric potential will cause changes in the magnetic field, solar wind attacks, etc.

These are actually not that important.

Maybe the earth is still fine, it's just full of holes.

The value of this idea is enough to make up for all the shortcomings.

It's so wonderful.

Fermi smiled bitterly:
"I admit defeat!"

Croce kept his mouth wide open, he was in a complete state of confusion.

Li Qiwei's answer deeply shocked him.

Even the entire speech from the beginning to now has been shocking him.

"Scientists really can't be messed with."

"They think about how to destroy the world every day."

“The point is, there are several ways.”

"One drop of water is enough."

"So scary!"

At this moment, everyone seemed to see the figure of a tyrant, spanning the universe and illuminating the heavens!

He just lightly pointed his finger, and a tiny drop of water leaped up and floated above the earth.

"go with!"

Ba Ying gave an order!
The water droplets are spinning wildly!

Countless electrons invisible to the naked eye are ejected rapidly.

Suddenly, the earth seemed to be created, with lightning flashing, hurricanes raging, as if the end of the world had arrived.

boom!
Destroy stars with a snap of your fingers!

Li Qiwei looked at everyone's surprised expressions and smiled slightly.

Electromagnetic force is the force that is most closely related to human beings, but people's understanding of it is far from enough.

It not only makes our world colorful, but also contains dangers that can destroy everything.

Of course, for some unknown reason, the link between electrons and protons is extremely stable.

Perhaps this is what the Creator intended.

This is true for a drop of water. If it is more extreme, all the electrons on the earth can be removed in an instant.

This energy would be enough to destroy one-fiftieth of the observable universe.

Just as everyone was immersed in the power of electromagnetic energy, Li Qiwei suddenly said:

"Through this question, I actually want to introduce the theme of today's speech."

“That’s the electron.”

“It’s at the heart of quantum theory.”

"The entire Bohr-Lee model and the four quantum numbers are actually explaining the various behaviors of electrons."

"If we understand electrons, we will have a better understanding of the microscopic world."

"By understanding the microcosm, we can have a deeper understanding of the macrocosm."

"Just like the question just now, I actually have another answer."

"But I want to keep this answer secret for now."

"Because it is related to the International Astronomy Congress that I will attend next."

“At that conference, I will share my latest research results.”

"And according to my theory, a drop of water may destroy the earth in another way."

“So, please wait and see, and pay close attention to the astronomy conference in a few days.”

boom!
Everyone was shocked!

(End of this chapter)