Chapter 12 Chapter 11 The end of supersonic flight...? !

Let's not discuss the question of "how to fly" in the previous section. Let's assume that superman can fly, monsters can fly, and all the strange mechanical super weapons made by humans can also fly.Just being able to fly is not enough. In the real world, human "Blackbird" and "X-15"... have all set super speed records. Even civil aviation aircraft have "Concorde" jetliners that can reach twice the speed of sound .That being the case, how can superheroes lose to humans?Fight it!The first generation of Ultraman can fly at five times the speed of sound, Superman VII can fly at seven times the speed of sound (why are they all odd times?), and the later Glory and Weisi can fly at 20 times the speed of sound!handsome! ! !

Wait, here comes the problem.... When an object moves at a supersonic speed in the air, it will produce a so-called "shock wave" (this is because the original object will change the surrounding air pressure when it moves in the air and emit a "sound wave", which is often seen in our daily life. But when the moving speed of the object that emits the sound wave exceeds the speed of sound, the air vibrations emitted will overlap to form a destructive vibration wave, which is called a shock wave. ), the power of this shock wave is not small!For a supersonic aircraft, the shock wave can easily break through the glass window 5000 meters away!Therefore, these supersonic aircraft, such as the Concorde ... etc., can only carry out supersonic flight at an altitude of 2 meters, so as not to endanger the ground. (I remember an episode of "Strange Doctor Doctor Qin" discussed this "invisible murderer", because the shock wave after the rocket was launched from the rocket launch site swept the nearby villages... This should be what the Japanese call "Itachi", right? Huaiyan’s Vacuum Slash in FSS, Nandou Shengquan’s Vacuum Wave, and Kyle’s Sonic Blade in Kuaishou Whirlwind should all be similar.) The scope of the shock wave is easy to draw. Draw a circle with a radius of 1cm For a circle, draw a straight line from the center of the circle to the outside. If the speed of sound is doubled, it will be 2 cm long, if it is three times the speed of sound, it will be 3 cm long...and so on.Draw a tangent line from the endpoint of the line to each side of the circle, tangent to the circle.The angle between these two tangents is the range of the shock wave! (Remember, this range looks like a triangle, but it is actually a "cone" range!) As long as it is an object flying at supersonic speed, the front end of the object will emit a shock wave of this shape.And you can see from the picture you drew, the more times the supersonic speed, the smaller the included angle!The smaller the security range, the smaller!Anything outside this range will be destroyed by the shock wave!Even the body itself is no exception!Therefore, everyone can understand why the wings of the Concorde are in the shape of an acute triangle, and why the body of the Blackbird is so sharp, right?If their wings are stretched out like AT-3, when flying at supersonic speed, the shock wave will cut off the wings protruding beyond the safe range!

OK, back to the question!Let's take a look at whether these superhero sizes are safe for supersonic flight? First, let’s take a look at the three-headed golden dragon (six-dimensional space monster), a giant monster in the universe that can fly at three times the speed of sound.When flying at 3 times the speed of sound, it will use the head as the front end to form a shock wave with an included angle of 35 degrees! Illustration: The other two heads and two wings of the three-headed golden dragon were cut off by its own shock wave... Long time, can kill the other two... In fact, I often think: What should I do when this multi-headed creature disagrees? Is it a democratic vote?) In this way, Godzilla, the big dinosaur who is fighting against the three-headed golden dragon, can I'll do it for you, as long as it flies into the sky by itself, you can kill two of the heads. Monsters that can't fly are really more popular... Another picture is our first-generation Ultraman, who can fly at 5 times the speed of sound.Because Superman flies forward with both hands stretched out, the front end of the shock wave should be at the finger, forming an angle of 23 degrees (as shown in the figure).Fortunately, the shock wave will only cut part of the forehead.

But the next one is not so good, the flight of Superman 7 is 7 times the speed of sound! The included angle of the shock wave is 16 degrees!This can't be all right anyway... Icon: The sharp conical shock wave formed at 7 times the speed of sound cut off half of the head of Superman No. 7... Slow down!That's not counting!Since their superman flies forward with "two" hands, the tips of both hands should generate shock waves!The two shock waves just split Superman Seven into two! According to the principles of Tokusho and cartoons, the heroes who come out later will fly faster.So Li Bawang Weisi and Guangrong are even more pitiful... 20 times the speed of sound!The included angle of the shock wave is only 2.3 degrees!

Icon: Two people who can't hide in the safe range no matter what? Especially Glory, the horns on the head will also become sharp points that emit shock waves, and the head of the melon will be cut into 5 pieces...Additional note: Safe and correct "hero flying method"! If you want to fly safely, there is no way for this size anyway!So there is only one path left: 'Deformation! ! ' Anyway, Ultraman can transform and become bigger and smaller, probably it is not difficult to change his shape... (Libawang: "Do you think I can change seventy-two?") Icon: When Ultraman is about to fly , the flight shape transformation begins!

What shape does it take?Simple!Fingers, palms, arms, and even head, neck, and legs should not be present on the whole body, and the head and arms should be fused into a spindle shape!This way only one tip generates the shock wave, and the whole body is at a safe angle.At the same time, there are no gaps in the body, so there will be no spoilers. Perfect flying posture!Are you handsome? (This is how the UFO in the old movie "Navigator" changed..) (Ultraman: "Wow... Our Superman brothers are as hard as steel, who cares about the shock wave? Want us to turn into that stupid image to fly... Who told your planet to have such a thing as an "atmosphere"?We superhuman brothers have defended the earth for many years, and have worked hard. At one time, you think we are too heavy, and at the same time, you say that our nirvana kills innocent people indiscriminately. not coming!

The monsters are coming and you deal with them yourself! ") Uh...Okay! In this case, we will stop making fuss about the Superman brothers, so the second part of this book has come to an end. Next time, we will enter the third part: "Superman Science and technology... can it be used? " Please look forward to! Second preview: Underground monsters attack!What should I do?It doesn't matter!Shizuka Nakamoto famously said: "A big drill is a must for a hero robot!" Please see the next chapter: "Attack! Subterranean tanks!"