Emperor Xiaoyao of Tang Dynasty

Chapter 364 The Argument About Hot Air Balloons

In the end, Jin Yu didn't buy a piece of asbestos cloth back, because it was too expensive and tasteless!A tablecloth that is half a foot wide and one foot long costs a thousand pieces!

Jin Yu wanted to do a tear resistance test of asbestos cloth to see how much force it could withstand, but Manager Wu sternly rejected it, all because it was too expensive.

In Wu Guanshi's words: You have to be careful when holding it, and don't resist pulling it. If it is damaged and sold, you won't be able to pay for it.

In fact, the asbestos cloth these days, in Jin Yu's opinion, is also tasteless. Apart from being able to scare a bunch of melons without fear of fire, what else can it be used for?It is easy to get sick if you suck some fiber into your lungs. One square meter weighs eight catties, and it is tiring to wear it as clothes.It can be used as an asbestos net if it is thinner, but the production process is not good now, half a centimeter thick, and the alcohol lamp burns for half a day, and the solution in the beaker above is enough to boil...

The items waiting to enter the palace are still very complete. After inspecting Huo Huanbu, Jin Yu took silk, silk, silk, satin, brocade, silk, silk, yarn, cotton, and linen by the way.

Silk, silk, silk, yarn, and hemp are all perforated, so they are so breathable that you don't need to tear them to know that they can't be used as airbags for hot air balloons.

Satin and brocade ribbons have specific patterns or patterns, are expensive, heavy, easy to scratch, and have better air permeability than silk and silk, so they are quite tear-resistant.

As far as the fabric is concerned, silk, silk, and cotton are all good in tear resistance. First, take two pieces of each back to test. Of course, none of them are bright yellow.

Jin Yu wanted to prostitute for free, but Wu Guanshi pretended not to hear, insisting on keeping accounts or paying cash.

Attempted whoring for free, let’s record it, and settle it at the end of the year. The purpose is a hot air balloon verification test.

When a group of people came out of the warehouse, the money exchange had come to an end.The seal on the cash box is intact, which represents the credibility of the imperial court. There is no need to count each one, and most of the silver taels have inscriptions, so it is not difficult to count them.

When I came here, there was a carriage, and when I went back, there were thirty or so carriages, and more than ten tons of copper coins. One carriage was not enough, and the manpower was organized by Wu Guanshi. In the end, Jin Yu became a prostitute on behalf of the Agricultural College. It was a worthwhile trip, Jin Yu was very satisfied.

Watching the group of people go away, Manager Wu finally felt a lot more relaxed, and he was still thinking: this Chaopin Hou Ye has a weird temper, why does he have to ask for copper coins, and also likes to tear cloth?Even if medium-scale transaction settlement does not require silver, more people like to use silk for settlement. A piece of silk weighs 12 taels, is worth 500 cash, and 500 cash weighs four catties!It's really weird.

The weather is good, the road is good, and the cart weighs more than a thousand catties. When I arrive at the Agricultural College, there are no people tired, but the horses are very tired.Jin Yu couldn't help thinking of "The Charcoal Seller".

It is true that there is something in Gongshi, and it is also true that eunuchs bully the people. For this reason, after Han Yu was transferred to the Commissioner of Discipline and Wei, he directly slapped the emperor in the face and demanded that Gongshi be banned. "Demoted" as a county magistrate of the seventh rank (the lowest rank of the county magistrate is the seventh rank, and the highest is the fifth rank), honey juice operation.

At the same time, Bai Juyi didn't like Han Yu (the two have a mediocre relationship and no personal relationship), and wrote "The Charcoal Seller" and posted it on his official account.As for exaggeration, emm... From the media, when he was born, Li Longji and Yang Yuhuan were all buried in the earth. Didn't he write "Song of Everlasting Regret" when he grew up?Regardless of whether the content is true or false, just like it and say that he criticizes reality.

The next day, two laborers were caught, and one of them was semi-disabled—Cheng Huaimo was beaten by his own father again.

"This is sitting on the daughter-in-law's sewing bag at home? Why don't you dare to sit down?" Qin Huaiyu, who became an adult, became much more cheerful, and joked with Cheng Huaimo.Cheng Huaimo's daughter-in-law's force is outrageous, and it's not a secret that she occasionally lectures her husband at home, even Lao Cheng won't ask.

"I was beaten up by the old man." Cheng Huaimo looked hopeless, picked up a stool, sat down slowly with his buttocks pouted, the force point fell on the upper part of the knee joint, perfect!
"Uncle Cheng is angry again?" Jin Yu looked at the prepared experimental equipment and teased Cheng Huaimo.

"After I handed over the receipt of the project fee to the accountant, the old man said the next day that I didn't care about my family's livelihood. You said, am I wronged?" Cheng Huaimo looked at Jin Yu resentfully, Jin Yu asked him to hand over the receipt...

"Pfft...hahahaha!" Jin Yu didn't hold back. This matter is very demon king. It seems that he is very witty. He is afraid that the demon king Cheng will be unreasonable, so he will ask him to pay the bill himself. A dead fellow is not a poor Taoist, "It's okay, it's okay. , take good care of it, and you will need to hand over the next year's receipt, hahahaha..."

"It's not careful to make friends!" Cheng Huaimo let the two bad friends laugh wildly, the old man was not going well, and when he vented his anger, he caught whoever was counted, and he didn't want to beat himself up for 250 taels of silver.Anyway, I don't want to stay at home recently, and I want to go out in the carriage.

"Okay, stop laughing, hahaha..." Jin Yu didn't hold back, "I really don't laugh anymore, let's conduct an experiment today to see if it is possible to send people to the sky."

"Let people fly?" Qin Huaiyu was full of interest.

"Probably that's what it means." Jinyu pointed to the experimental material next to him, "We must first record the data, analyze which material is suitable, and then calculate that various materials can drive multiple objects to take off, and finally choose a suitable one. Huaimer is in charge For the record, Huaiyu and I will experiment with it."

If you start making without verification, how can you gain confidence?Purely mindless behavior, Jinyu IQ is online.

First of all, the buoyancy of air per unit volume must be calculated. There is no reference to the air density at different temperatures, so you can only measure it yourself.

"This lampshade...is quite big, and unique enough." Qin Huaiyu looked at the stacked paper cubes next to him, and commented honestly.

"Not only big, but also big!" These are one-cubic-meter cubes made by craftsmen under the guidance of Jin Yu (for the convenience of the officials, the experimental data are all converted into the measurement units of later generations), and a round hole is reserved below. , which is convenient for heating the air, and a string has been tied on it - make sure that the round mouth can face the brazier, and the other places are airtight with paper. "Take your gloves and go out and bring in the charcoal basin."

For fear of accidents such as accidental ignition, gas leakage, etc., I did several at once, and it was convenient to verify the accuracy of the data, but it was necessary to verify many times and record them one by one.

The top-quality smokeless charcoal is burned in the brazier, with a slight fruity fragrance, which is very suitable for barbecue... Ahem, using smokeless charcoal is the best way to obtain the accuracy of the data.

Air has weight. Jinyu wants to obtain data by weighing the "large lampshade" before and after heating. The difference is the buoyancy of a cube of air.Of course, it is necessary to heat the air in the large lampshade as much as possible. After all, the hotter the air, the greater the buoyancy. First obtain the data, and then calculate the lift force of the hot air balloon based on the size and materials of the hot air balloon. If the result of the calculation is that it can fly, then Find a suitable heat source.

(End of this chapter)