20demayo Page 168
Page 168
"Hmph." Ying Yu turned around and left, seeing Shang Wen's room, which couldn't be more simply furnished, and suddenly felt sleepy.Especially that bed, it was hard.I don't know how this guy sleeps every day.
"Hey, hey." Ying Yu asked loudly.
"I'm busy with that," Shangwen said.
"Your bed is too hard. I can't sleep." Ying Yu said.
"Just let it go, this is not the Hilton Hotel, there is no Simmons." Shang Wen said.But Shangwen couldn't get used to sleeping at first, but after he was busy doing experiments and doing things every day, he gradually got used to it.In particular, Naofumi also felt a little troublesome about the continuous big moves.Then slowly adapted.
"What Hilton, Simmons's?" Ying Yu asked.
"Oh, it's a kind of mattress." Shangwen said.
"Mattress!" Ying Yu asked.
"Yes, there are a lot of springs. Putting it underneath makes the bed very elastic. People who sleep on it can easily fall asleep." Shangwen could only explain it casually.Should it also be explained that this Simmons is a person's name.What a waste of words.Shang Wen thought.
"Then why don't you make one?" Ying Yu asked.
"I find it troublesome." Shangwen had no choice but to answer like this.But Shang Wen also felt strange that it had been so long.Why didn't I think of Simmons.OMG.Is my brain degenerated.
"Hey. Then make me one. If I can't sleep all night, I will be very sleepy the next day." Ying Yu said coquettishly.
"En." Shangwen nodded thoughtfully.Consider your future sleep problems.Shangwen still agrees.
"Okay." Shang Wen said and was about to leave.
"Hey, where are you going?" Ying Yu asked.
"Be Simmons." Shang Wen said.
"I'm going too." He said and followed out.
There is a furniture businessman in the United States named Salmon Simmons.He heard customers complain that the bed board was too hard and uncomfortable to sleep on, so he used his brain.He tried many methods, such as stuffing thick cotton into the mattress, which compacted after a while, but it was still uncomfortable.His eyes lit up when he saw the spring made of wire.So he bought a batch of iron wires of moderate thickness, twisted and woven them into a bed frame, and wrapped it with a strong cloth bag outside, making it very comfortable to lie on. In 19, the world's first spring mattress wrapped in cloth was put on the market, and was immediately praised by consumers.It was named after the inventor's surname.This is where Simmons comes in.
Gradually Simmons became synonymous with spring mattresses.Fortunately, Naofumi's arsenal has everything.The textile factory hasn't been separated yet, so I don't know why Ying'er didn't go out, this issue is beyond Shang Wen's consideration.
The spring factory has a carriage shop.Naofumi remembered that their springs seemed too big.Mainly their springs are shock-absorbing springs, if people sleep on them, it is a little bit reluctant.So Shangwen could only ask people to re-draw the silk with a wire drawing machine and make it to order.It takes time, even for the most skilled craftsman.It cannot be done in a short time.
Then it is fixed with wire.Then wrap with plenty of fabric.Shangwen ordered people to make two.very simple.This guy, Ying Yu, who was already sleepy and fell asleep leaning on his shoulder, would definitely take him away.
In addition, Shang Wen also asked others to make some goose feather pillows.The material is completely silky.This took an hour to finish.Then he ordered people to put him in his own house.
"Okay. Don't sleep. Hey, hey." Shang Wen shook the sleepy Ying Yu awake.
"Ah. What's the matter?" Ying Yu said confusedly.
"The bed is ready. Go back to sleep." Shangwen said.
"Oh." Ying Yu stood up unsteadily as she spoke.
"Wait." Shang Wen quickly supported her.Then he ordered someone to take a coat and put it on.Fortunately, this is a textile and quilt workshop, and there is no shortage of finished coats.otherwise.This guy is going to catch a cold.
Shangwen helped Yingyu leave and went back to the house.Shangwen put Yingyu on the bed.Tucked. "Everything is ok," Shang Wen said with a snap of his fingers.
Shang Wen also felt that Ying Yu had infected him with drowsiness after doing all this.I have no choice but to make do with sleeping in the outhouse.Naofumi closed his eyes in a more comfortable position.
And in the north.It was a huge change overnight.The cold snap from Siberia is moving southward quickly.And the Mengtian tribe, who fought in the north, and the Yuezhi army who were waiting for the reinforcements to arrive together experienced the test from heaven.
The strong wind and heavy snow fell with goose feathers, and the snow on the ground slowly accumulated several feet high.This height is still slowly increasing.There is no intention of stopping.God seems fair.
There has been a severe drought in the north this summer.In winter, a large number of snowflakes accumulate in the north.It is good to balance the precipitation of the year.And this heavy snow came suddenly.Some are big.The time is also earlier than in previous years.Many people have never seen such a big snow.The Yuezhi people have never seen it either.
The violent wind and the heavy snow hit the person's face, which hurt the person's face.The snowfall started to escalate into a blizzard.
What about 256 sodium carbonate?
Shangwen was lying on the mat, really unable to fall asleep, no matter how many poses he put in, he just couldn't fall asleep.
Not being able to sleep is a very uncomfortable thing.Shangwen got up and took a sip of water.Want to keep sleeping.But forget it.Get up and stay up all night.this era.Not even coffee, refreshing things, only tea.
But still drink water.The tea leaves are somewhat bitter.
Shangwen sat down and calmly sorted out his thoughts.First, a place to sit.this era.Everyone is still sitting on mats, even chairs and stools have not yet appeared.Sitting is actually kneeling.This is a real test of one's willpower.Shangwen always suffers from talking about the government.Especially when it comes to those huge war plans, Shangwen always stands up and speaks first, because sitting is kneeling.The knees can't take it.However, Shang Wen believes that such a long-term kneeling.I don't know if there is a disease like arthritis.
Thinking of this, Shang Wen discovered that his previous inventions were too much concentrated on heavy industry, or tended to be highly technical things, and he seriously ignored some of the lives around him.For example, the surrounding furniture.Shangwen didn't have a single invention.If it wasn't for Ying Yu's accidental proposal today.Naofumi has almost forgotten that life can be better.
If you focus too much on one thing, you tend to overlook many things.
Think here.Shang Wen's interest suddenly came.Furniture, sofas, chairs, stools.Modern style coffee table, office desk.It would be best if you can add a boss chair.Shangwen took out a stack of paper and began to sketch the graph.Now there are more modern wood processing machines.These things are not difficult to process.sofa.No sponge yet.Can only do old-fashioned spring sofas.
A chair with a backrest such as springs or thick foam plastic, with armrests on both sides.This is the basic overview of the sofa. With a sofa, it can be used in other places, not just at home.There are also horse-drawn carriages for going out.Also available in a carriage.Because of the four-wheeled carriage.The load capacity is not only doubled, but more importantly, it can carry people and loads.All have greatly improved.If a sofa is added, the passengers may be more comfortable.Plus clear glass.Very modern car style.
In addition, there are many things, chairs.Boss chair, and desk.These all need to be processed.
Shangwen spent an hour sketching the drawings, and then took a lot of drawings to the airship workshop.There is the greatest concentration of carpenters.
The drawings are handed over to the carpenters, and the rest is their own business.And Shang Wen still has a lot of time.
Naofumi turned his attention elsewhere.Since we are in the airship workshop, we need to design something related to the airship.
The inability of airships to measure altitude has always been an important factor that plagues flying.Especially speed and altitude.Velocity requires pitots.The pitot tube is also called the Pitot tube, the total pressure tube, and the total-static pressure tube.It is a device that senses the total pressure (also known as total pressure) and static pressure of the airflow, and transmits the measured pressure data to the air data computer and flight instrument.This aviation device is mainly used to measure flight speed, but also has many other functions.The current technology is not yet able to develop such an advanced pitot.
It consists of two concentric tubes, the inner tube is the total pressure tube, and the outer tube is the static pressure tube.The pitot tube measures the speed of the aircraft. This is the Cessna pitot tube
, when the aircraft is flying forward, the airflow rushes into the pitot tube, and the sensor at the end of the tube will feel the impact force of the airflow, that is, the dynamic pressure.The faster the plane flies, the greater the dynamic pressure.If you compare the pressure when the air is still, that is, the static pressure and the dynamic pressure, you can know how fast the air is rushing in, that is, how fast the plane is flying.The tool for comparing the two pressures is a hollow circular box with corrugated surface made of upper and lower two very thin metal sheets, called diaphragm box.The box is sealed, but has a tube connected to the pitot.If the speed of the aircraft is fast, the dynamic pressure will increase, the pressure in the bellows will increase, and the bellows will bulge.A device composed of small levers and gears can measure the deformation of the bellows and display it with a pointer. This is the simplest airspeed indicator for an aircraft.
The speed measured by the pitot tube is not the real speed of the aircraft relative to the ground, but only the speed relative to the atmosphere, so it is called airspeed.If there is wind, the speed of the aircraft relative to the ground (called ground speed) should also be added to the wind speed (flying with the wind) or subtracted from the speed of the wind (flying against the wind).In addition, the principle of pitot speed measurement uses dynamic pressure, and dynamic pressure is related to atmospheric density.For the same relative air velocity, if the air density is low, the dynamic pressure will be small, and the bellows in the airspeed gauge will be deformed. Therefore, the same airspeed, the indicated value at high altitude is higher than that at low altitude. This airspeed is generally called "gauge speed". ".Modern airspeed indicators have two pointers, one thinner and one wider.The wide pointer indicates "gauge speed", while the thinner one indicates the airspeed equivalent to the atmospheric pressure on the ground after various corrections, called "real speed".
In order to prevent the small hole at the front end of the pitot tube from freezing and blocking during flight, the pitot tube on the general aircraft has an electric heating device.
And the bellows becomes the key.The other is an instrument that measures and indicates the vertical distance of the aircraft from a selected horizontal datum, called an altimeter.
The altimeter installed on the cockpit instrument panel of the aircraft usually includes a barometric altimeter and a radio altimeter.The barometric altimeter is actually a barometer, which indirectly measures the flight altitude by measuring the atmospheric pressure at the altitude of the aircraft.The radio altimeter is actually a ranging radar with the ground (water surface) as the detection target, and the altitude indicated by it is the true altitude.
Ultra-modern altimeters could not be manufactured either.But another thing does.That is the barometer.
An instrument for measuring atmospheric pressure made according to Torricelli's experimental principles.The types of barometers are mercury barometers and aneroid barometers.Its purpose is: to predict changes in the weather, when the air pressure is high, the weather will be fine; when the air pressure is low, there will be rainy weather.Measurable height.For every increase of 12 meters, the mercury column will decrease by about 1 millimeter, so the height of mountains and the height of airplanes flying in the air can be measured.
Changes in the weather can also be predicted. When the air pressure is high, the weather will be sunny; when the air pressure is low, there will be wind and rain.
A device for measuring atmospheric pressure using a Torricelli tube.The mercury tank at the bottom of the glass tube is replaced by a leather bag, and an ivory needle that can be adjusted is attached to make it indicate the mercury level, which is called "Fortin mercury barometer". The tube is engraved with a scale for measuring the height of the mercury column.Install another ivory needle on the top of the mercury tank, the needle point is just at the zero point of the scale outside the tube, and use a leather bag as the bottom of the mercury tank.When in use, lightly turn the screw under the leather bag so that the mercury surface in the groove just touches the tip of the ivory needle (that is, on a horizontal line with the zero point of the scale), and then read the height of the mercury column from the scale on the tube.This altitude indication is the size of the local atmospheric pressure at that time.In addition, there are barometers for observation stations that do not need to be adjusted with ivory needles, barometers for measuring low pressure mountains, and barometers for navigation that are not sensitive to the shaking of ships.
The height of the mercury column supported by different atmospheric pressures is different. According to p=p (mercury density) hg, the calculated pressure is equal to the atmospheric pressure. Of course, this calculation will mark the barometer on the barometer and align it through the mercury plane. The scale, you can know the size of the air pressure!
However, the questions ultimately all point to one problem.Processing of glass tubes.and a lot of raw materials.
A very complex logical reasoning.Barometers need glass.Glass needs sodium carbonate.What about sodium carbonate?