After coming out of Li Yanxi's courtyard, Ren Chao went back to his room, and it was completely dark at this time. Two guards walked in front of Ren Chao with two lanterns to light the way, the light was very dim, and he couldn't see it too clearly, plus Ren Chao was thinking about something, and accidentally tripped over a stone on the side of the road and almost fell.

"Your Excellency, are you alright?" The guards behind him hurriedly helped Ren Chao forward.

"I'm fine." Ren Chao waved his hand and said casually.

"It's so dark on this path, it's good to have someone add a lantern here." A guard whispered.

"Lanterns? Wouldn't it be better to add an electric light! Ren Chao said casually.

"Electric light? Isn't that too extravagant. The guard was stunned for a moment and couldn't help but say.

Electric light has already been invented in this era, but in the relatively backward place of the Qing Dynasty, electric light is far from being popularized, and only a few important departments of the government are equipped with electric light. That's why the guard said that installing electric lights was a bit of a luxury.

"Luxury?" Ren Chao suddenly remembered one thing, and he seemed to have ignored one thing. At present, there is probably no one in the world who knows better than Ren Chao what kind of development and changes the popularization of electricity will bring to mankind, but Ren Chao has been ignoring this problem before. Whether it is industrial or civilian, even military is inseparable from electricity, and vigorously developing electricity is also a very important thing. Ren Chao still vaguely remembers that the second industrial revolution was because of the widespread use of electricity, which made the development of science and technology advance by leaps and bounds. Now that we have reached the middle and late stages of the second scientific and technological revolution, China has missed the first industrial revolution, and must not miss the second industrial revolution.

Ren Chao suddenly felt that it was very important to vigorously develop power facilities and introduce advanced science and technology. Thinking of this, Ren Chao couldn't help but feel a burst of excitement in his heart, with his own traverser, if Huaxia missed this opportunity in vain, wouldn't it become a joke. The current foundation of the Qing Dynasty is weak, and there are not so many excellent scientists. To come up with some advanced inventions is tantamount to a dream. Even if Ren Chao can summon some scientists through the guò system, these scientists are extremely expensive, and it is not certain whether the scientists who come to summon can invent some advanced and practical things, because inventing and creating zào sometimes requires luck.

Ren Chao did not have the luxury of catching up with those European and American powers all at once, but in this era of rapid technological change, he must not be left behind by others, which can only make the distance between the two sides wider.

"Luxury? It won't be long before I have electric lights on in every household. The corners of Ren Chao's mouth couldn't help but show a smile. Ren Chao doesn't know much about industrial things, but in civil affairs, lighting is undoubtedly the most important one.

After Ren Chao finished speaking. Ignoring the surprised expressions of the guards, he walked directly to his study. Ren Chao's mansion is equipped with electric lights, but there are only a few electric lights installed in a few places. Among them, there is an electric light in Ren Chao's study, but Ren Chao rarely comes to the study, so this electric light is rarely used.

"Turn on the lights for me!" Ren Chao casually ordered.

Immediately, one of the guards walked over and turned on the light, "Bang! The electric light went on, illuminating the entire study. Ren Chao smiled and looked at the old electric light in front of him, although this is a new type of electric light that has only been invented in recent years. But for Ren Chao, it is undoubtedly an old antique.

"Smack!" With a bang, the electric light went out and returned to darkness, and Ren Chao's smile couldn't help but freeze on his face. "How?" Ren Chao couldn't help frowning and said.

"Handsome! This electric light seems to be broken, and it doesn't turn on! The guard who turned on the light said in frustration.

"Hold on! Damn it. Why is Lao Tzu so unlucky. Ren Chao couldn't help but scold. I was going to write a song here. If you don't hold it in the morning, you don't hold it in the evening, but at this time, is it because of Lao Tzu's character? Ren Chao couldn't help but complain in his heart.

"You're finally aware of the problem. Your character is really not very good. However, it's not entirely a matter of your character. The bulbs produced at the current level of science and technology naturally cannot be compared with later generations. So this situation also comes up often. The elf's mocking voice sounded in Ren Chao's mind.

"Humph!" Ren Chao couldn't help but snort coldly, and then remembered that the light bulb was choking, can you find this guy to exchange huàn for one, Ren Chao waved his hand and let the guards retreat, "Little elf, give me a light bulb." ”

"Now? I warn you! Although this durable bamboo carbon filament bulb can theoretically last about 1,200 hours, that is only theoretical. Some of them may not even be able to use it for 12 hours, especially a guy with a bad character like you, maybe as soon as the power is turned on, it will be burned with a bang! The elf chattered.

"Holy! I said you can't hope for me? Ren Chao couldn't help but roll his eyes, "I found that this guy of yours has been getting more and more verbose recently." You~! That's not right! What did you just say, durable bamboo carbon filament bulbs? Isn't this filament tungsten? ”

"Well~! Who told you that this is a tungsten lamp? The elf pouted.

"Won't you get me a tungsten lamp? Tungsten filament lamp should be stronger than this bamboo carbon filament, right? Ren Chao said impatiently.

"I'm sorry, I can't get a tungsten lamp. Now you can only use huàn this kind of bamboo carbon filament bulb, if you want it, don't pull it down. The elf said with an indifferent expression.

"Why can't you redeem huàn, didn't you say that as long as everything invented in this world can be redeemed huàn?" Ren Chao couldn't help but ask.

"This problem? Even an idiot knows that if I answer your question, it will be an insult to my intelligence. The elf said, leaning his head on his back.

"You're saying that tungsten lamps haven't been invented yet?" Ren Chao asked uncertainly, "But didn't the American invention king invent the electric light a long time ago?" If I remember correctly, it was invented in the 80s of the 19th century! ”

"Do you have a good memory? Nong, the inventor invented this kind of carbon filament lamp? The elf pointed to the light bulb that had been suffocated.

"Who invented the tungsten lamp? Didn't he invent it? I remember that tungsten lamp was invented by that old boy? Ren Chao couldn't help but ask in surprise.

"That's the problem? I can't answer you, because tungsten lamps haven't been invented yet! As for who was the inventor of the tungsten lamp in your previous life, you can think for yourself! If you think about it, maybe you can remember it? The elf said with a smile. (To be continued......)