In the conference room of the Institute of Electromagnetics in Laizhou, An Yi was listening attentively to Ding Molan's explanation of the experimental footage captured by the camera.
In the afternoon experiment, Tesla used his super coil to drive a ten kilogram payload on a fifty-meter track for a full output test. The payload broke the sound barrier on the track and the shock wave broke the track.
, the experiment was interrupted.
The sound barrier means that when a flying object approaches the speed of sound, it will catch up with the sound waves it emits. The result of the superposition and accumulation of sound waves will cause the generation of shock waves, which will then create an obstacle to the acceleration of the flying object.
After breaking through the sound barrier and entering supersonic speed, a cone-shaped sound cone will be generated at the front end of the flying object. To onlookers, this shock wave will sound like an explosion, so it is called a sonic boom or sonic boom. A strong sonic boom will not only cause damage to nearby
Damage will be caused to the buildings, and damage will also be caused to the part of the flying object itself that extends beyond the impact surface.
Tesla's experiment verified the existence of the sound barrier for the first time and became the first person to confirm the sound barrier. From this point of view, this experiment was successful. What is especially rare is that the object was captured with a camera.
The scene when the sound barrier was broken provided valuable information for subsequent research.
After completing the experiment, Tesla couldn't wait to summarize and try to improve the payload and orbit. Therefore, Ding Molan, who served as the experimental assistant, replaced Tesla to explain the importance of the experiment to An Yi.
Although An Yi also thought this experiment was great, he still couldn't help but asked quietly: "Mo Lan, is there any hope that Uncle Nicholas's experiment will be used in military technology?"
Ding Molan nodded affirmatively: "Of course. Once this kind of electromagnetic projection track is successfully developed, the first thing to benefit will be the research on supersonic aircraft. Through this projection track, the aircraft model can be shot to double the speed of sound and hypersonic speed."
As for hypersonic speeds, this will be a useful supplement to the supersonic wind tunnel we are building.
"In addition, this projection rail can also be used on aircraft carriers being designed. Think about relying on electromagnetic ejection to send fighter planes into the air, making the fighter planes accelerate evenly and control their power. This reduces the chance of many accidents for pilots.
For aircraft carrier designers and naval operators, it is even more great news. It can reduce the area occupied by the hangar deck to one-third of the original size, and the weight is also significantly reduced. There are many other uses.
I haven’t thought about it yet…”
"These are enough!"
An Yi was very satisfied. Seeing that it was not early, he stepped forward and put his arms around Ding Mo Lan's waist, and said softly: "Mo Lan, do you have anything else to do today? Let's eat together. After dinner..."
Just as he said this, the door to the room rang at an inappropriate time.
An Yi quickly let go of Ding Molan, turned around and shouted: "The door is unlocked, come in!"
Shen Fengdao hurriedly entered and strode to An Yi: "There is something going on in Siam. According to the information detected by the intelligence department, it will be very dangerous tonight and tomorrow!"
An Yi smiled apologetically at Ding Mo Lan, and then said to Shen Fengdao: "Old Shen, go outside and prepare the vehicle first. Mo Lan and I have something to say!"
Shen Fengdao nodded to Ding Molan and turned to leave.
An Yi held Ding Mo Lan's hand, his face full of regret: "I'm sorry, Mo Lan, originally I wanted to take advantage of this opportunity to accompany you, but the Siamese people didn't give me this opportunity, I...
"
Ding Molan raised her head, stretched out her hand to cover An Yi's mouth, and looked at An Yi affectionately: "I'm fine, everything is based on the overall situation. Now Nanhua is at a critical moment, and the slightest carelessness may cause the situation to worsen.
, having you personally in charge is a great encouragement to the officers and soldiers of the three armies."
An Yi gently kissed Ding Molan's forehead and strode away.
...
At nine o'clock at night, artillery fired in unison at Aram, Kashun, Phibun, Mudahan, Tabo and other places on the Siam side of the border. Infantry artillery, mountain artillery, and field artillery were fired toward the other side of the border.
Countless bombs were poured down on the South China land.
After an hour of fire suppression, the Siamese army's invasion officially began.
With the help of instructors sent by Japan, the Siamese armed a total of thirty divisions. This time they attacked Nanhua, using the 1st to 5th divisions to attack Popet and other places in the Tonle Sap Plain of Nanhua Tiennam Province. The first stage objectives
It is to occupy Shisofeng Town, the county seat of Meanchey County; the 6th to 10th Divisions attack Osma, Gonggele and other places,
The goal of the first stage is to capture Samlong Town, the county seat of Samlong County; use the 11th to 12th Divisions to attack Menggao, with the goal of occupying Pakse City on the right bank of the Mekong River and hold it; and use the 13th Division to attack Savannah
Ji, the 14th Division attacked Vientiane, and these two armies acted as a feint attack to contain the Anjia Army's northern forces from moving southward.
The Siamese Army used five divisions as homeland guards and 11 divisions as strategic reserves. They concentrated their superior forces to attack the defenseless southern plains of South China. They hoped to take advantage of the chaos to first solve the Tonle Sap Plain on the lower reaches of the Mekong River and advance the front to
Along the Mekong River, threatening Saigon's security.
"卟吥奥——"
The continuous shooting caused the machine gunner's shoulder to bear a lot of recoil. Amidst the sound of tearing cloth, the body of the general machine gun and the body of the machine gunner were shaking rhythmically.
The obtuse angle left two obvious scratches on the rock base of the trench due to the back and forth friction. The bullet casings that jumped out of the gun barrel fell into the trench in clusters like broken beads.
As a cartridge belt was completely eaten by the machine gun, the machine gunner could already feel the heat of the barrel. He quickly dragged the machine gun down to the position, and the deputy machine gunner wearing thick gloves immediately replaced the barrel that was so hot that it was about to deform.
For a well-trained machine gunner, this process only takes fifteen seconds, plus the time to load a new ammunition belt, and half a minute can rejuvenate this general-purpose machine gun.
When the general-purpose machine gun returned to the battlefield, the Siamese infantry were still rushing towards the positions held by the Anjia army.
This is the town of Popi at the junction of Nanhua and Siam, a small village with only more than a thousand people. The residents of the town were evacuated when the shelling started. The blocking position with three trenches to the west of the town is the Anjia
A powerful guarantee for the army to resist the invasion of the Siamese army.
The border between Nanhua and Siam is densely covered with tropical forests, and there are not many roads that can facilitate the passage of large armies. The town of Popet lies across this main traffic artery, and its geographical location is extremely important.
However, in order to lure the Siamese army to invade, Gu Changfeng only deployed one battalion here. However, the Siamese army that took the initiative to attack had an absolute advantage in numbers and rushed toward the position in waves.
Flares rose into the sky one by one. Amidst the sound of machine gun fire, the snipers assigned to each squad quickly fired at the key figures in the attack group. First, the officers who imitated the Japanese and rushed in front with command swords, and then
They were Siamese machine gunners and grenadiers. They were hateful guys, with dazzling bloody arrows spurting from their heads, and they fell to the ground one after another.
The infantrymen of the Anjia Army were lying on the trench. The bullets fired from the semi-automatic rifles flew out like a whirlwind, knocking down the Siamese soldiers who were rushing in front of the position. Many of the Siamese infantrymen who were attacking fell down and shot.
, but their marksmanship is very poor, even if they take ten shots, they may not be able to hit one.
However, there were too many Siamese. Under successive charges, the leading Siamese infantry had arrived less than 30 meters away from the first trench. Suddenly, overwhelming grenades flew out of the trenches of the Anjia Army and aimed at
The Siamese army smote down the crowd like locusts.
Hand grenades fell on the crowd one after another, exploding into balls of fire. Countless steel fragments flew in all directions. There was a violent explosion, and groups of Siamese soldiers screamed in horror and fell to the ground.
However, the numerical advantage still played a major role. Although the grenade temporarily opened a gap of more than 30 meters wide, it was instantly filled by the Siamese army that rushed behind and advanced another ten meters to the position.
, the Anjia officers and soldiers on the position seemed to be able to vaguely hear the breathing of their opponents.
At this time, Anjiajun began to use mortars to conduct blocking fire.
"Bang bang——"
After the sound of a row of mortars being fired, shells flew into the sky in pieces, reaching the highest point. With a harsh whistle, the shells crashed hard into the dense crowd of Siamese soldiers.
"Boom boom——"
A series of explosions sounded, and countless black and red fireballs rose from the ground. Sharp fragments flew in the air, slicing through the flesh and blood of the Siamese soldiers. Some were cut into two pieces, and some were cut off.
Some people had their heads and limbs broken, and some were beaten into a hornet's nest. The screams were endless, and the Siamese soldiers on the ground were covered in blood and flesh.
At the same time, the snipers fired accurately at the Siamese officers, machine gunners, and grenade launchers who were huddled outside the explosion point, beating the monkey-like heads into rotten watermelons.
With the cooperation of mortars and snipers, the soldiers in the trench once again threw locust-like grenades towards the front of the position.
The overwhelming hand grenades blew up the Siamese soldiers who were approaching the trenches, leaving them bloody and screaming.
In a short period of time, the Siamese people had suffered more than 2,000 casualties. In this case, the Siamese officer commanding the battle launched a fierce attack, and infantry artillery, field artillery and mountain artillery of various calibers poured into the Anjia Army position.
After a dense rain of bullets, fireballs of various sizes fell on the ground, countless large and small fireballs rose up, violent explosions, and the rolling flames merged into a dense wall of fire. Anyone who was close to the flames were all killed on the spot, and even
It was blown to pieces and no bones were left.
The Siamese soldiers who were lying on the ground and crawling forward suffered heavy casualties under the suppression of their own artillery fire, and the soldiers of the Anjia Army also suffered serious casualties. For a time, the mutilated corpses of soldiers from both sides were lying in the trenches.
The bursting brains, splattered blood, mutilated bodies, burned limbs, and burning corpses made the soldiers on both sides feel nauseated. The filthy and heat-waved air was filled with acrid gunpowder smoke.
The smell, the smell of blood and the bursts of vomiting burnt odor.
The guard battalion commander in the rear town was red-eyed and just about to order the reserve team to be put in. The instructor Jiang Wentian stopped him: "The mission given to us by the battalion commander, division and regiment commander is to resist for one hour and cause our side to the Siamese army."
Just give the illusion of heroic resistance. Now that we have repelled three enemy charges, and it has been almost two hours, we can retreat."
The battalion commander pointed to the outside of the town and shouted loudly: "Old Chiang, look, our soldiers are bleeding and dying outside, but you are calling for a retreat. I, Zhang Meng, have never fought such a useless battle. If you want to withdraw, I will
Take people up..."
"Comrade Zhang Meng!"
Jiang Wentian grabbed the battalion commander who was about to rush out of the command post: "What you should do now is not revenge, but to execute the orders of your superiors. If we want to take the moral initiative internationally, we must put the Siamese into the national border."
Come and fight! The preparations for the group army and the front army have been completed. Don’t you know that insisting on going your own way will ruin things? The most important thing is that if you continue to act recklessly like this, you will bring our battalion into a desperate situation!"
Zhang Meng suddenly woke up when Jiang Wentian drank him like this.
With the implementation of the political commissar system in the army, instructors have become de facto deputy positions. In some cases, they can even replace erring commanders and assume the command of the army.
"All right!"
Zhang Meng finally chose to carry out the orders of his superiors.
Soon, under the shelling of the Siamese army, the guard battalion withdrew from their positions one after another, quickly got on the trucks, motorcycles, armored vehicles that had started, and some also mounted horses, and quickly retreated.
After half an hour of fire suppression, the Siamese army launched another attack. This time it was very smooth. It took almost no time to rush into the town of Popi. Soon, it "smoothly" captured Popi, which was defended by "a large number of troops".
The "great victory" in the town was reported to the heads of the Siam Army Central Group and the Ministry of National Defense in Bangkok, triggering a frenzy.