Da Bong fights more people

Alchemy room.

A group of white clothes surrounded the experimental equipment, staring at Song Qing's operation.

The porcelain cup holder, which is as thin as an eggshell, is baked on the fire candle, and the steam curls up. The water in the porcelain cup evaporates and crystallizes.

Song Qing flicked her fingers, and a cluster of bright flames enveloped the crystal and slowly melted.

"If I had this skill in my previous life, flicking my fingers and lighting a cigarette would definitely be a powerful tool for picking up girls." Xu Qi'an was a little envious of flashy warlocks.

The sodium chloride crystals melted, and Song Qing showed a dignified look. She was stuck in the next link countless times in the past:

Lightning strike!

Song Qing subconsciously looked at Xu Qi'an beside her.

Including the big-eyed cute girl Chu Caiwei, other white clothes cast their gazes on Xu Dalang.

Xu Dalang nodded expressionlessly.

The fact that I didn't guide me aloud means that all my steps have been fine so far. Song Qing was so determined that she snapped her fingers.

A slightly bright arc suddenly flashed through the air, continuously pouring into the porcelain cup.

"Hold your breath."

Suddenly, everyone heard Xu Qi'an's voice, without hesitation, they immediately held their breath.

In fact, even if you inhale the poisonous gas directly, you non-human beings will be fine. Xu Qi'an just made everyone hold their breath out of inertia of thinking.

The next moment, a scene that shocked Si Tianjian Bai Yi happened.

Irregular silver-white lumps formed in the porcelain cup, just like silver, with fine salt that had not been completely transformed sticking to the edges of the lumps.

"Success, success"

"Brother Song Qing, how did you do it?"

The white-clothed people were startled. They had never succeeded before, but this time they managed to refine fake silver in one go.

Unsurprisingly, Miss Caiwei was able to refine fake silver that day, and she succeeded once, either because of bad luck or bad luck, because I was by my side, and it involved me Xu Qi'an watched silently and verified it Guess in my heart.

Song Qing glanced at the fake silver, then at the excited juniors, her face was a little bewildered.

I haven't changed anything. I used to think this way, he subconsciously glanced at Xu Qi'an, and found that the little policeman was not surprised at all, his eyes were dark, as if he had expected it.

Song Qing's heart moved: "Xu Ningyan, do you know the reason?"

Chu Caiwei, who was thinking, immediately looked at Xu Qi'an.

The other white-clothed people turned their heads one after another.

Xu Qi'an stood with his hands behind his back and smiled: "This question should not be asked to me, a mature alchemist should learn to think independently."

"I think you should be able to realize where the crux of the problem lies."

Chapter 31 This is not a wool-gathering, this is an equivalent exchange

key point?

Song Qing's brain was running fast, and she analyzed it based on the experience of several previous failures and this success.

The previous steps have not changed, the real change should be the last step: lightning strike!

How is this lightning strike different from last time?

Several weak electric arcs flashed in his heart, Song Qing's body shook, and he said excitedly: "I understand, I understand."

"Xu Ningyan, you are truly an amazing alchemy genius."

"Although you haven't seen our failure before, you already knew it in your heart, right? You already knew the real reason for our failure."

No, I only know that your thoughts have gradually changed. Xu Qi'an smiled and said nothing.

"What's the key? Brother Song, what do you understand?"

"Senior Brother Song, hey, don't be a fool, tell me quickly, this alchemy is almost becoming my demon."

The alchemists in white asked anxiously.

Song Qing coughed, looked around at the juniors, and said in a deep voice, "It's the intensity of the lightning strike."

After speaking, he looked at Xu Qi'an with proving eyes.

Xu Qi'an nodded with a smile, and said: "I named it voltage."

The voltage for refining sodium metal should be controlled at 6-15 volts.

Voltage? !

Song Qing was taken aback, another word he had never heard before, electricity he knew, but what is voltage?

Instinctively, he felt that this was a remarkable point of knowledge, as profound as the essence of everything written in that blue book.

A white-clothed alchemist took a step forward and bowed to Xu Qi'an: "Brother, please explain clearly, what is voltage?"

"Please teach us." The other alchemists in white clasped their hands at the same time and said in unison.

Chu Caiwei, who was standing aside, was very envious. She liked the feeling of being a teacher and teaching apprentices the most.It's a pity that she is only a Feng Shui master and is not qualified to teach apprentices.

Voltage, also known as potential difference or potential difference, is a physical quantity that measures the energy difference generated by a unit charge in an electrostatic field due to different potentials. Of course, you don’t understand what I said.Xu Qi'an coughed, with a serious face:

"Electricity is the same as water flow, it will flow toward the low point."

Xu Qi'an raised the teacup and poured the water in it, "It's okay to pour this cup on anyone, but if it's a waterfall, people who stand in it will be broken by the impact of the water, and even lose their lives. The same goes for electricity. So, I call this phenomenon voltage."

He uses this easy to understand example to explain voltage.

Si Tianjian's white clothes frowned and fell into deep thought. They didn't understand Xu Qi'an's words very well.

Although they are alchemists and have the ability to manipulate lightning, it does not mean that they understand the nature of electricity.

Song Qing suddenly understood something, and cheered up: "So, the reason why thunder and lightning hit trees in rainy days is because the trees are at a low point? The same is true for people. In addition, if it is only a weak current, we will feel paralyzed at most. And if you bear the bombardment of the sky thunder, you will die."

"The truth is that the voltage of the sky thunder is so strong that it exceeds the limit that ordinary people can bear, just like a waterfall. The weak current is like a glass of water, which can withstand it."

Hearing Song Qing's words, the white-clothed alchemists were suddenly enlightened, excited to have obtained the profound meaning of the truth, and cast their eyes on Xu Qi'an for proof.

Um, is this the principle?Isn't the reason why trees are struck by lightning not the conductivity of rainwater?My middle school teacher didn't make it clear, and Xu Qi'an himself was not sure, with a smile on his face: "Young children can be taught."