A nation's industrial development begins with junior engineers.

The order is issued.

Jiangxia's modified vacuum system began to hum.

Yes, it's a modified version again. Do you know why the electron double-slit interference experiment, proposed in 1961, wasn't verified until the 70s?

Besides the difficulty in fabricating the double-slit device, the most important thing is to maintain a high vacuum in the experimental environment to prevent electrons from colliding with air molecules.

Vacuum level: It needs to reach 10⁻⁶~10⁻⁶ Pa, which is difficult! You should know that the highest level in the world can only reach 10⁻⁵ Pa.

But don't forget, our little ahoge (cowlick) actually managed to create a centrifuge. It's feasible to use the centrifuge's supergravity field to create a vacuum.

This method is based on Torricelli's experimental principle. By setting up a specific vacuum generation system and water seal box inside the centrifuge, the height of the water column is greatly reduced by the supergravity field generated by centrifugal force, thereby achieving a high degree of vacuum in a short time.

Hey, did you spot it? This is the geotextile centrifuge model test you learned about in college.

My friend, going to university is really great. Don't be misled by the "uselessness" argument.

Jiang Xia looked at the vacuum gauge that had been set up next to the centrifuge, which was actually a scanner; the data from there was more accurate.

No matter how loudly the centrifuge whistled, the vacuum level only hovered around 10?? Pa. Oh well, I'll just have to make do. If it doesn't work the first time, I'll try again.

Jiang Xia raised his hand to indicate: "The vacuum level has reached the minimum test standard. Please proceed with the experimental procedures!"

Senior Sister Zehui nodded: "Prepare the electron gun for preheating! Prepare the anode high-voltage electric field for acceleration!"

It's called an electron gun, but it's really just a large light bulb without a lampshade.

The scientific name is quite impressive: thermionic cathode electron gun! The principle is also very simple: by heating a tungsten filament to release thermionic electrons, which are theoretically the cathode, the electrons are then accelerated by a high-voltage electric field (anode) to form an electron beam, which can then eject the electrons!

(*^▽^*) What comes to mind when you think of this acceleration principle?

Replace the electrons with something with mass, such as aluminum alloy, copper, or steel, and then emit them using electromagnetic force...

Hehehehe, that's why we need to do certain experiments. Some classic experiments have led to some truly groundbreaking results.

"Electron gun is warmed up!"

"High-voltage electric field preparation in progress! Three-stage series power frequency transformer ready! Preparing to apply voltage! Experimenter, please step aside and double-check the transformer's safety condition!"

The lab technician from the Institute of Electronics, Chinese Academy of Sciences, carefully checked the circuit again, then left the transformer and nodded vigorously to the group of experts.

"Checked! No problem! We even checked the transformer oil and impregnating asphalt inside the transformers, absolutely no problem! These transformers can boost the voltage to 50KV, enough to power an electron microscope! A mere 30KV..."

Is the overvoltage protection ready?

"Ready! Parallel ball gap discharge device is used, and the breakdown voltage is set to 120% of the rated value."

"Great!" Senior Sister Zehui clapped her hands excitedly.

"How's the detection system? Let's do one last check while the electric field is pressurized!"

"The fluorescent screen is fine! The photomultiplier tube is working properly!"

Dr. Lan Ying patted the round screen next to her with some pride. She had taken the screen from an old oscilloscope. Although it was small and had a spatial resolution of only millimeters, the zinc sulfide fluorescent screen could still observe the cumulative interference pattern.

Hehehe, tough job, huh? Not enough lab equipment? We'll use our ingenuity to make up for it!

If it weren't for the gathering of so many experts, this experiment would have been impossible to achieve with just Xiao Dai Mao! Putting aside everything else, Xiao Dai Mao didn't even think about using the photomultiplier tube; he originally only planned to let the electrons bombard the fluorescent screen directly.

Fortunately, the women who worked with semiconductors thought of this, and a spectrometer in Professor Cheng Shu's isotope separation research lab contributed this part.

Don't worry about it, that spectrometer has been unusable for a long time. When the Russians left, they sabotaged it by damaging the spectroscopic components, saying it was Alliance property and their damage wasn't their problem…

That's true, but you took our money!

Teacher Cheng carefully preserved the wreckage of the spectrometer, hoping to restore it someday.

Unfortunately, it still hasn't been successfully repaired...

But look, this is where it comes in handy!

This is called Impure World Reincarnation!

Hehe, this group of lovely people pieced together the necessary equipment for the experiment by piecing together bits and pieces from various sources, hoping to use it to open the door to quantum theory.

"Electron gun preheating complete! High voltage electric field boost complete! Detection system in good working order! Emit electrons to capture interference fringes!"

At the command of Senior Sister Zehui, a brief flash of blue-purple light appeared in the buzzing high-voltage electric field.

"Tsk, the vacuum level is still not high enough. Electrons collide with the residual gas molecules, producing a glow discharge! Hopefully, the range of electron beam scattering is small enough to be captured by the detection device!" Jiang Xia couldn't help but blink. Although the light was dazzling, it was not what he hoped for.

The flash of light stung people's pupils, and everyone couldn't help but close their eyes.

Open your eyes again...

Ok?

"Why is it so dark? I... can't see anything?" Jiang Xia was a little panicked and quickly stretched out her palm to examine it.

Thankfully, Jiang Xia breathed a sigh of relief as she managed to make out the general outline of the fingers by the sparse starlight.

"Good heavens, blinding myself in an electronics experiment, that's the most embarrassing thing ever..."

"Then... why can't I see?"

"The power is out..." Old Wang, who was standing next to Jiang Xia, pulled out a flashlight while protecting him behind him, and snapped it open.

Jiang Xia breathed a sigh of relief when the bright beam of light appeared.

"what……"

Ignoring the unreliable power grid, the big shots habitually pulled out flashlights and inspected the experimental equipment they had painstakingly set up.

"Hey! We deliberately chose to conduct the experiment late at night to reduce the load on the power grid, but we still got this result!"

"Stop talking nonsense, quickly check if the equipment has been damaged by a power surge that broke down the insulation!"

Just as the big shots were shining their flashlights and shaking their heads in sighs, a loud shout rang out.

"Everyone! Turn off your flashlights! Remain silent!"

"Huh? What's wrong?"

"The screen! Look at the screen!"

Even with the power outage, the properties of the zinc sulfide fluorescent screen allowed it to emit a faint glow in the darkness. (Yes, that's how zinc sulfide fluorescent screens work; anyone who used a CRT television should understand—when the TV was off as a child, the screen would still glow slightly for a while.)

Everyone fell silent as they looked at the vertically arranged marks on the screen.

"Is this the interference pattern? Is this the wave-particle duality of material particles?"

"We succeeded?"

In the darkness, someone trembled and muttered to themselves...

"Do not……"

"Not yet! There aren't enough electrons. This design isn't complete yet. We need more..."

Before he could finish speaking, the screen went completely dark.

The interference pattern has disappeared... "Oh no! The experimental results weren't saved!"

"Sigh..." A huge sigh echoed throughout the conference room.

Old Li, standing at the door, felt a pang in his heart as he listened to their sighs.

"Oh, I'm so sorry to them, so sorry to them! They put so much effort into creating this, but it's all gone because of our inadequate infrastructure..."

"Who's in charge of the power supply for this area? Didn't we tell them to ensure we have enough electricity?"

Old Li held the cigar in his hand and forcefully crushed it into pieces.

"Hey, I was thinking of celebrating with my comrades..."

"Boss, a colleague reports that the transformer here is on fire... The power company personnel are working with the fire department to put it out..."

"They really did their best..."