Seven drone teams pulled a 1,500-kilometer-span sample line at an altitude of 15,000 meters, from the sky above Gansu to the border of Guangdong. Each cloud shadow reconnaissance aircraft was equipped with a sensitive optical and Infrared remote sensing platform, the Institute of Optics and Mechanics boasts that this thing can see people smoking on the lunar craters in an ultra-narrow field of view - the strongest detection power currently possessed by mankind is all here, with seven big eyes in an ultra-wide-angle state. It takes an average of forty-eight hours to complete an area scan of nearly one million square kilometers. If suspicious traces are found, the field of view can be reduced immediately and tracked in real time.
In order to capture Sword Angel No. 093, all the best human beings came out.
But Angel No. 093 never thought of hiding.
Just when everyone thought it would be as secretive, tiny, and lurking in the night as the Lighthouse Angel, the Sword Angel burst into the room like an elephant, shocking everyone into confusion - how big is the Sword Angel? Woolen cloth? The Cloud Shadow UAV, which flies at an altitude of 15,000 meters, still has to look up at this behemoth. The white cumulonimbus clouds are no more than its waist height.
Holy shit – that’s the first thought that pops up in every drone operator’s mind.
"Isn't this angel too damn big?"
This is the second thought that comes to people's minds.
No. 093 Knife Angel, instead of calling it Knife Angel, it is more vivid to call it Gyro Angel. It lands on one foot like an elegant ballerina, touching the ground with its needle-like foot. The higher it goes up, the more its size expands, reaching more than 10,000 The black shell began to expand after a meter, and the black shell became stable during the high-speed rotation. While rotating, it flew close to the ground at a super high speed of Mach 23, orbiting the earth.
Obviously people lack an intuitive concept of the super high speed of 23 times the speed of sound. They can't imagine what it would be like to move at such a speed in the atmosphere. Today, the operators of the Yunying UAV saw it - flying at an altitude of A drone at an altitude of 15,000 meters can see the horizon 400 kilometers away, and less than 60 seconds have passed from when people discovered that the Sword Angel appeared at the end of the line of sight to when the Sword Angel passed through the reconnaissance array composed of drones. .
At first it was just a vague black shadow, only the size of a grain of millet, like a slight bulge on the horizon. When people found it, they were excited, and a big stone in their hearts finally fell to the ground, because the worst expectations did not become reality. Before the sword angel could sink into the ground, its outline and edges gradually became clear after ten seconds. After twenty seconds, people became stunned. At the top of the stratosphere where the curvature of the earth's edge could be clearly seen, all landform features were blurred. , the undulating mountains and valleys were flattened into a large piece of paper. Only the sword angel rotated on this paper like a top, casting a triangular black shadow covering thousands of square kilometers on the ground.
Thirty seconds later, panic began to spread, because people found a reference - compared to the mountains, lakes, rivers and cities at its feet, the Sword Angel is a huge aerial fortress. It is at least 20,000 meters high, and the clouds are there. The waist is also 20,000 meters wide at the top, but the toes at the bottom are as sharp as a needle.
Forty seconds later, everyone was stunned. The big stone in their hearts sank into the unfathomable abyss again, sinking all the way into the center of the earth. They watched helplessly as the sword angels and the reconnaissance planes formed. It passes by, it crosses this line in just a split second, and it cannot be captured by the camera.
After all, humans are creatures that live in a low-speed world. The action potential conduction speed of nerve cells does not exceed one hundred meters per second. The speed of chemical synapses transmitting information is even slower. The brain itself is a slow organ. In the limited imagination of the human brain, a high-speed moving object should roar past, stir up strong winds, rub against the atmosphere, become red and hot, and generate shock waves. However, the Sword Angel subverts these inherent impressions. It does not produce sound, does not Friction with the atmosphere, this giant thing that is so big that ordinary people cannot imagine it traveled across the Central China and North China Plains at a speed 23 times that of sound without any movement at all.
No wonder it can travel silently across the Sichuan Basin.
"How can such a large angel still exist stably? Hasn't it exceeded its own P-Yang limit?"
"Can you lock it?"
"I can't catch it... This damn thing is so damn fast. Fuck, fuck, fuck, fuck."
The extreme high speed brought huge troubles, and everyone found it difficult. As long as they zoomed in a little, no lens could catch up with the sword angel, and even its trajectory could not be determined.
"Our previous guess was right! It should pass near the Sichuan Basin! Great! There is a chance! Get ready for image collection! Attention all units, get ready for collection!"
"Is there anything I can gather around 151?"
"Take pictures! Take pictures!"
"All data from visible light to infrared bands are being collected! The X-ray and gamma ray analyzers have been started, the observation axis is aligned, and the video signals of Unit 2 and Unit 3 are cut over! We need high-speed cameras! Ultra-high speed camera!"
"Federation Center, which camera is the fastest we have? How many frames per second?"
"There is a 1 million frame machine, but it may not be able to capture it."
"Up, up, up, up! Catch as much as you can, don't let it escape! The data collection window is only two minutes. Once it slips away from our noses, it will be difficult to catch it again."
"Fucking Mach 23."
The location of the Sword Angel is a small dark red circle on the big screen in the center of the index, at the junction of Shaanxi Province and Hubei Province, but its possible direction is a huge range that can cover the entire Sichuan Basin, and the intelligence department is still doing its best. Work hard to narrow the forecast range.
But the speed at which they shrunk was not as fast as the sword angel himself could move.
The Joint Index Center was as busy as a vegetable market, and everyone was grabbing the phone and yelling. As a brand-new, unobserved angel, No. 093 Knife Angel broke into people's field of vision at an unprecedented speed. The speed is so fast that humans may only have less than five minutes to observe it. This is an extremely precious opportunity to collect data and intelligence. Everyone is very excited. Visible light, infrared, and X-ray , gamma rays, atmosphere, geomagnetic field, various task teams were running back and forth in the main control hall.
Until the sharp siren silenced the roar of people in the hall, everyone holding the phone looked up blankly.
"What's going on?" someone shouted angrily.
Someone at the far end of the hall slowly raised his hand. That was the intelligence team doing trajectory calculations.
They finally came up with the result and narrowed the possible movement direction of the Sword Angel to an acceptable level. The intelligence team carefully projected the final result onto the largest screen, which was a narrow corridor that could be seen by everyone present. People's hearts skipped a beat - it suddenly intersected with the slender mountains of the 151 Nanshan Support Base.
People held their breath, their eyes wandered, and they subconsciously retraced the trajectory to confirm the current location of the Sword Angel, but their eyes immediately hit the terrifying crimson eye of the storm - it had already arrived at the door of their home, and the countdown showed 27 seconds remaining. .
26 seconds.
25 seconds.
My day.
A telephone fell from my hand and fell to the floor, its plastic casing breaking open.
The screams of wind snail sirens rang over the entire Chongqing city.
There was only seven minutes between when humans first saw the true face of the Sword Angel and when 151 sounded the alarm when the disaster was imminent.
