What the hell is 1 invention value? The invention of a paper airplane will make people laugh at the existence of big teeth in modern society, but in Datang, it is definitely a rare thing.

According to modern physics, the paper airplane involves gravity and air friction, and the moment it is thrown upward, it is given an upward initial velocity, and then the length of time it exists in the air can be calculated according to Newton's second law and calculus.

It seems like just a simple high school physics problem.

Well, so there's nothing wrong with the invention, after all, he was the first person in Datang to invent paper airplanes, as for the Mozi that Li Chengqian said, the wooden kite he made with mechanical techniques and he should not be the same thing, one is paper, the other is wood.

Li Yuan carefully stared at the display screen in his mind, and in the middle was the "Congratulations on the invention of paper airplanes, rewarding 1 point of invention value." And in the lower right corner of the display there is a mall button, as well as a lottery center, revenue records.

In the upper left corner, there is a gold finger instruction for use, and you can use your consciousness to select and click on it.

After a long time, he finally understood the role of his golden finger.

As long as he invents something that has never existed in the Datang world, he will be rewarded with invention value, and the more complex the invented thing, the greater the impact on the world, that is, the Datang thing, the more invention value will be rewarded.

And Li Yuan's most related life problem, Goldfinger also gave a solution, you can use the invention value to buy life, 1 point of invention value is equal to 1 day of life.

Li Yuan clicked on the mall in the lower right corner first, and only one product in the list was bright, and the others were like mosaics, gray, and he couldn't even see what the thing was.

And this purchasable thing is a bit hilarious.

""100 Basic Origami Encyclopedias", priced at 5 invention points."

In the upper corner of the mall is the balance: 1 point.

Li Yuan wanted to vomit blood a little, did he travel to Datang to play origami in elementary school? It's something that little girls can play with.

Thinking about the fear of being dominated by school girls before, he wanted to cry a little, those girls in junior high school and primary schools are not people, they are stronger than boys, and they like to fight more than boys, they can't say fighting, to put it mildly.

Tear up the war!

Every time I go to class, I will stack small stars at the same table, the gimmick of those merchants: when I stack 1000 little stars, my dream will come true, but...

There are few little girls with this kind of perseverance after all, and those clever big sisters will coerce and lure boys to help fold them, and give lollipops to eat after stacking...

Li Yuan is one of the scourges.

And the lottery center pops up a pop-up window, stating that at least 10 invention points can be entered.

"Fear, fear." Li Yuan shook his head with palpitations, and glanced at the eldest grandson who was playing with paper airplanes, and he looked a little happy, so he beckoned to him and said with a smile: "Cheng Qian, Grandpa Huang taught you to fold other gadgets." ”

Li Chengqian pinched the corners of the paper airplane, and was about to take off, when he heard this, his eyes lit up, and he leaned over to Li Yuan and asked, "Grandpa Huang, are there any other planes?" ”

Plane...

The corners of Li Yuan's mouth twitched, and he said Okay, what about this child's intelligence?

The history books say that Li Chengqian: "I asked Ruizhe early, and I watched "Poems" and "Rites" at an early age. But Li Yuan was stunned and couldn't see Li Chengqian's elegant temperament that was deeply influenced by Confucianism, as the saying goes, there is poetry and books in his belly, and a person who reads a lot can't hide the bookish spirit on his body.

In his previous life, although he was a dead fat house, he was also good at ancient texts, and although he couldn't memorize the Five Classics, he could also read them by heart, which made him stand out from the crowd in that group of dead fat houses.

Something he's proud of.

No wonder this child has changed when he grows up, it turns out that he was smart when he was a child, but he is not so exaggerated, presumably Li Shimin deliberately painted it, saying that his son has the appearance of a dragon and a phoenix, so what about his father?

Dragons give birth to dragons, phoenixes give birth to phoenixes, and the sons of rats will make holes.

Li Chengqian's talent when he was a child was more of a justification for Li Shimin's usurpation.

Holding his good grandson in his arms, Li Yuan picked up a piece of white paper, and began to fold it with two fingers, but in a few seconds, a pile of origami was piled up on the wooden table.

Little frogs, small paper boats, thousand paper cranes, puppies, little rabbits...

At the same time, the display screen also began to swipe continuously:

"Congratulations on inventing the paper frog and rewarding 1 invention point;

Congratulations on inventing the paper boat and rewards 1 invention value;

......“

"Wow! Grandpa Huang, you are so powerful, you can stack anything, Cheng Qian admires Grandpa Huang. Li Chengqian looked at the many small playthings in front of him in surprise, and also patted Li Yuan's ass by the way.

Li Yuan was happy in his heart, the fear of being dominated by girls was also good at this time, and those otaku who could be single would definitely not fold these various gadgets.

According to biologists, animals will do their best to show their good side when they are courting, so the peacock chooses to open the screen, the dog chooses to bark, and the boy... I chose to play the game.

Girls and children love this kind of simple handicrafts, while boys love Dota and League of Legends, showing their supernatural beauty to their roommates, good luck, eat chicken tonight.

According to their words, men should men, and sissies should women.

Hehe! It makes sense, I almost forgot that I was one of them...

Fold five kinds of origami, Li Yuan couldn't wait to open the mall, the balance had changed from 1 point to 6 points, and clicked on the "100 kinds of origami basic encyclopedia", and instantly all kinds of small origami methods appeared in his mind.

Self-taught!

Next, Li Chengqian saw the imperial grandfather who he had never seen before, his dexterous hands were even more powerful than the embroidery girl, and a piece of white paper was formed into various looks by simply folding.

Origami is such an amazing thing!

For the first time, the crown prince became interested in origami.

"Your Majesty, there is no paper!" The palace maid holding the wooden case said a little dumbfounded.

There were twenty or thirty sheets of white paper in this stack, but in just half an hour he witnessed a magical process.

Little rabbits, little foxes, little paper figures...

People who have never seen origami will sneer, it is not just simple origami, but if you see this scene, you will also be amazed, origami can simply fold everything in the world.

It's just a matter of difficulty.

"There's no paper... Yes! That's it. Li Yuan was also a little tired from folding the origami, and when he thought about it, he found that his head was a little drowsy, his blood supply was insufficient, and his waist... That's even more tiring.

After checking the balance, there were 23 invention points, and he exchanged all of them for life with one ruthless heart.

A little invention is worth a day's life, a full 23 days of life!

Li Yuan felt that he was instantly refreshed, and the feeling of twilight had dissipated a lot, but his waist was still very tired.

Standing on the steps, you can see the carved galleries and paintings of the palace......

At this moment, a pride was born in his heart,

"Datang tremble! I... I Li Yuan is here, and wherever the Tang Dynasty soldiers reach, they are all the concubines of the Tang Dynasty! Where the sun and the moon shine, all are the land of my Tang Dynasty! Constantinople? Persia? Hehe! In front of my Datang, vulnerable! ”