In the Sand Village, the clones are everywhere, and the Arkham game begins

Chapter 176 Fluorescent Lights

Compared to Water Breathing, Tanjiro, whose ancestors have been selling charcoal for generations, is obviously more suitable for Fire Breathing.

In the original time and space, the four protagonists had at least the strength of a Pillar at the age of fifteen, and none of them had poor talent.

Tanjiro is even better. When he used Water Breathing, he was at best a decent swordsman. And when he used Sun Breathing for the first time, he was no match for the Lower Moon Five.

However, since he began to use the Breathing of the Sun, which was more compatible with himself, Tanjiro's strength has grown explosively. He participated in the killing of the One of the Lower Moons, the Six of the Upper Moon, and the Four of the Upper Moon in succession. In the process, he became the first person to activate the Mark, and his output accounted for an increasingly higher proportion in the team.

When he finally unlocked the three-piece set in the Infinite City, he was already considered a small Yuanyi.

Breathing of Flame is more compatible with Tanjiro.

In the first half year of following Rengoku Kyojuro, Tanjiro's strength had actually given him a chance to pass the final selection, but Kyojuro ultimately delayed Tanjiro for another half a year in order to be safe.

As a result, a year later, Tanjiro has reached the point where he has started to try the Changzhong breathing method.

Even though he hasn't fully mastered it, in terms of strength alone, the biggest gap between him and those B and C level swordsmen is only practical experience.

After passing the selection, because his own Nichirin Sword had not yet been forged, Tanjiro wanted to return to his hometown after visiting his sister to pay homage to his deceased parents and brothers and sisters, and temporarily stayed in Fujiya.

"Tanjiro! Can you come and help? The Rei-Hira and the Mushi-Hira are here, and they brought a bunch of flowers and soil to move into the yard."

A hidden man covered in brown and black cloth called on Tanjiro for help.

The enthusiastic Tanjiro had no objection.

"Eh? This kind of flower..."

"I found them near your house, Tanjiro. Last night, Shimizu and I chased a ghost to the mountain where your house is. Finally, at dawn, Shimizu led me to these flowers, so we decided to bring these flowers back to the Butterfly House and cultivate them ourselves."

Shinobu Kocho said with a smile on her face.

“This blue flower…”

Tanjiro looked at the sky.

It is morning now and the sun is shining brightly.

"But this kind of flower, my mother also took me to see, once it gets dark, the flowers will quickly wither and will not bloom again for several years."

Tanjiro carried two pots of flowers to a place in the yard where the sun was shining directly, and said to Shinobu Kocho and Kiyomizu.

"Eh? Is that so?"

Butterfly Shinobu said with regret.

Qingshui took out the things in the backpack and said, "Why not try to make a lamp that can emit sunlight at night?"

Everyone turned their eyes to Qingshui.

Create a lamp that emits sunlight at night...

What if it is used to deal with ghosts?

"Qingshui... is this really possible?"

Kocho Shinobu hesitated.

"Why don't you try it on a flower? It's a good idea to use a room as an experiment."

Several hermits hurriedly cleaned up a spacious room.

Yesterday, when passing through Tochigi Prefecture, Shimizu picked up some things that he had ordered from his uncle Uesugi Sakai at the post office there. They were materials for making fluorescent lamps.

The Taisho era was several decades away from the invention of fluorescent lamps.

But the incarnation of the DC world spent 20 million US dollars to buy a factory that produced furniture lamps. Based on the production methods in the factory, he developed fluorescent lamps that could be manufactured in the Taisho era.

That thing has already been manufactured in the DC world. Although its effect is far inferior to the fluorescent lamps used in household lighting and agricultural greenhouses that are sold as commodities, it can indeed emit white light.

According to spectral detection, the wavelength combination of each band of this light is close to sunlight.

In the 21st century, the blue-leaved green leaves can be cultivated with fluorescent lamps for the cultivation of the clear water lily, so this one will also work, but the effect will be slightly worse at most.

As for whether it can cause harm to ghosts, Qingshui feels that it should be able to, but the effect is definitely not as good as real sunlight.

Previously, Shimizu had built a simpler ultraviolet lamp based on the method provided by the DC world incarnation, and he also controlled ghosts and conducted irradiation experiments when performing tasks.

There is an effect, but it only makes the ghost's skin feel slightly burning, the body feels a little weak, and slightly reduces the ghost's regeneration rate.

There is not much difference between it and wisteria, which may be due to insufficient light intensity, but if the ultraviolet light is too strong, it will also cause great harm to the human body.

Qingshui carefully took out a glass tube.

This is no ordinary glass tube.

Instead, it is a vacuum tube filled with mercury vapor and an inert gas.

The boiling point of mercury is 356.7 degrees Celsius, but in a vacuum environment, due to the decrease in pressure, liquid molecules will actively escape and turn into gas due to the change in vapor pressure and external pressure.

As for inert gases and vacuum tubes, they had already been invented and extracted by humans during the Taisho period.
In 1898, neon, krypton and xenon were extracted from the air. In 1904, the vacuum tube was invented by John Fleming, who discovered the classic right-hand rule. In the same year, Ramsay, who discovered and extracted noble gases, won the Nobel Prize.

However, even though they already had it, it was not easy to obtain in this era. Shimizu could only ask Uesugi Sakai to use his connections to customize and produce a few lamp samples from the UK.

There are metal electrodes at both ends of the vacuum tube, and the inside of the tube is coated with a phosphide to replace the phosphor that could not be prepared at that time.

Shimizu took out the backup power supply for Yuan Yiyi's hand, connected it, and finally took out the prepared inductor coil to replace the ballast.

When everything was assembled, Qingshui reached out and pressed the switch.

There was a crackling sound of electricity, and Shinobu Kocho, Tanjiro and others standing behind Shimizu didn't dare to breathe.

The next second, a slightly dim but pure and holy white light illuminated the dim little house.

Just then, a loud shout was heard from the door of Fujiya.

"Is Tanjiro here? I'm the swordsmith from the Swordsmith Village, and I'm here to bring you a sword! Eh? The soil in this flowerpot... is it a new gorilla quartzite?"

Qingshui suddenly raised his head, stood up and opened the door of the cabin.

I saw an old man taking off his fire man mask, picking up a handful of red mud with his finger and trying it in his mouth.

"Gorilla Scarlet Iron... Solar Energy... Fluorescent Lamp..."

Qing Shui murmured, looking at the fluorescent light surrounded by the crowd.

Meanwhile, in the DC world.

Mayoral election scene.

Qingshui clapped his hands and looked at Hamilton, who was standing on the podium in front of him, with one hand on a copy of the American Constitution, and following the oath-taking officer, solemnly swearing in the citizens.

(End of this chapter)