Witch Special

Lin Zhenxi seemed to have made some mistakes again.

That is, the first cosmic velocity means that when an object has such a high speed, it can overcome the pull of gravity and enter outer space, and then be captured by the gravity of the planet and become a satellite orbiting the planet.

This time, for the "launch", Hayashi Maki just wanted to send Saitama into space, so he set the speed value according to the first cosmic speed of this planet.

Sounds like it's okay?

But the first cosmic velocity refers to the tangential velocity...

When an object has a speed that exceeds the first cosmic velocity but does not exceed the second cosmic velocity, it can rely on the centrifugal force during circular motion to counteract the gravity of the planet. When the two are balanced, the object will become a satellite stable in a certain orbit, performing uniform circular motion around the planet.

Therefore, the first cosmic velocity is also called the minimum launch speed of spacecraft, the maximum operating speed of spacecraft, and the orbital speed.

On Earth, this speed is 7.9 km/s, but this data is calculated when the spacecraft is close to the surface. The reality involves more factors. It is impossible for a spacecraft to fly close to the surface. Its range of activity should be several hundred kilometers above the ground.

After taking all factors into consideration, when the spacecraft is orbiting at an altitude of about 150 kilometers, its orbital speed is about 7.8km/s. This data is basically close to the result of pure paper calculation, but the intermediate calculation process is so complicated that it is daunting.

However, if an object is launched vertically from the ground, how much speed does it need to escape the earth's gravity?

Let's put it this way, there are real examples in reality. On its fourth manned flight, Bezos' Blue Origin took 10 minutes to an altitude of 106 kilometers, allowing six passengers to experience a few minutes of weightlessness. On average, that's 0.167 kilometers per second.

Of course, a rocket cannot fly at a constant speed, but should continuously accelerate until it reaches its maximum speed and then slowly slow down. But even if we think about it in a grandiose way, increasing this speed tenfold, it would only be 1.67 kilometers per second.

However, what Hayashi Maki prepared for Saitama was the vertically upward first cosmic velocity, and what's even more terrifying is that the "launch" gives the attribute of speed. This "speed" will not change for any reason before reaching the destination or exhausting the energy.

That is to say, an object that has been given "launch" will move at the assigned speed after being given "launch", regardless of its previous state of motion.

When an object changes from one state of motion to another, it must undergo work. From a more fundamental level, this issue is the conduction and transformation of energy.

Therefore, all that's needed is something to replace the force to transform energy within the object. Even without the force, the object can still be given speed. "Launch" is a spell that directly changes the state of motion of an object by consuming magic power.

Magic, isn't it amazing?

The magic makes the launched object...that is, Saitama...suddenly have an extremely high speed without any force, and this speed will not change due to other external factors before the magic power supplied by Hayashi Maki is exhausted. However, Hayashi Maki only gave the speed and did not add other convenient attributes to the projectile such as "no wind resistance", "indestructible", and "automatic tracking".

Therefore, the moment Saitama is launched, he will first emit more than twenty sonic boom rings, and use his own body to withstand the wind resistance wall formed by the more than twenty sound barriers superimposed on each other.

Next, because the speed will not change, Saitama's body will continue to bear this huge pressure until the magic power is exhausted.

But the good news is that this terrible process will not last too long, because after one second, Saitama will fly to an altitude higher than the Himalayas, and after 15 seconds, Saitama will break through the atmosphere and reach the outer space of the planet. Once he breaks through that altitude, Saitama will no longer have to consider how much wind resistance he has.

What he should consider is how he should come back if Lin Zhenxi's insurance measures do not work, if he does not want to become a piece of space junk floating in space forever.

But given Saitama's style, he would probably fart and push himself back to the planet at this time... Anyway, the probability of the zero gravity, low temperature and vacuum environment in space posing a threat to Saitama should be infinitely close to zero.

But those are things that need to be considered in the near future, and Lin Zhenxi currently needs to face some imminent problems, that is, the damage caused to the surrounding area by the more than twenty times louder sonic boom.

Lin Zhenxi knew the dangers of sonic booms, so when he started the "magic radiation", Lin Zhenxi had already activated his own magic protection.

This is the magic that Lin Zhenxi uses to save his life. The research and development priority has always been the highest. Whenever Lin Zhenxi learns any new and excellent magic skills in the other world, the first thing he does is usually to think about how to integrate it into his own protective magic shield.

After combining the advantages of several different styles of magic from other worlds, Lin Zhenxi's magic protection has become quite versatile. It provides extremely effective protection for the user while also placing relatively little burden on the user. It can not only offset physical damage but also absorb magical damage, and can even deflect directed attacks.

In short, Lin Zhenxi tried her best to make up for all the shortcomings of her magic protection. Apart from some unsolvable soul attacks and rule attacks, the only way to break through her magic protection is to use force.

But just because it can't be broken doesn't mean it can't be blown away.

Lin Zhenxi only considered the lethality of the sonic boom, but ignored the fact that the main form of damage caused by the sonic boom was the shock wave and the loud noise. So when the sonic boom exploded just in front of him, both the launch vehicle and Lin Zhenxi himself would be the first victims.

Lin Zhenxi felt his vision go blank for a split second before his magic shield activated, and he was blasted skyward. Because of the energy-absorbing nature of magic shields, the deafening sound was muffled by the shield, but the experience of low-altitude flight was still necessary.

Lin Zhenxi's perspective suddenly changed from normal to looking up at the sky, then turned to the ground very quickly, turned back, and flew out in a spin.

After flying for an unknown distance, Lin Zhenxi hit his head on a building in front of him and only stopped after being embedded firmly in it.

The magic protection lasted for a few seconds before disappearing on its own. Lin Zhenxi grabbed the edge of the concave edge of the magic shield that was smashed on the outer wall of the unfinished building after it materialized and jumped out of the sunken pit. He stood there holding his head and shaking for a long time before Lin Zhenxi barely suppressed the dizziness in his head.

"Ugh, this magic needs to be modified. I need to add angular momentum stabilization."

After finally recovering, Lin Zhenxi looked around and saw the devastation in front of him. He couldn't help but hold his breath for a moment.

It was truly outrageous. Starting from the launch pad's original location, the powerful shockwave swept away hundreds of meters of ground, leaving not even a blade of grass untouched. And in the very center, a massive pit with a diameter of ten meters had been dug out. From Lin Zhenxi's position, the depth of the bottom was unseen.

Lin Zhenxi felt that if the shock wave had not been blocked by the surrounding buildings that were unfinished but had been built without cutting corners, the range of the shock wave might have been even wider.

It’s almost affecting the neighborhood where Hayashi Maki and Saitama live!

Fortunately, none of these unfinished buildings had windows installed and there were no tall trees, otherwise all of them would have been destroyed.

Could launching an object at the speed of the first universe, and the shockwave alone, cause such devastation?... Lin Zhenxi suddenly realized that she didn't seem to be without a way to deal with larger enemies. Using magic radiation to throw some reinforced concrete fragments would probably be quite effective.

The larger the target, the more effective this powerful attack would be. If the target was too small, like Lin Zhenxi herself, she would be blown away. Besides a few scratches, the biggest damage she would suffer would probably be a concussion.

Moreover, if the speed exceeded the speed of sound, this attack method would not distinguish between friend and foe, and even Lin Zhenxi herself would be affected. It was impossible for Lin Zhenxi to be blown away by a single magic radiation. Although Lin Zhenxi was not seriously injured, this style of painting was too strange.

What do you call this, beating myself up?

So the correct way to use it is to accelerate large mass objects, accelerate them to subsonic speed and then throw them out... Lin Zhenxi recalled the scene when his teacher demonstrated magic radiation to him, and found that the teacher did not seem to give the objects too much speed, but the power was still quite amazing.

So that's how it is... Lin Zhenxi felt that she had discovered the correct use of this ability.

After thinking for a while, Lin Zhenxi suddenly slapped his head and realized that now was not the time to review.

It’s been so long, where did Saitama fly to!

Lin Zhenxi rarely used the magic of magic radiation before, and after the magic conversion, she only used it once after the signal amplification tower was built. So Lin Zhenxi now doesn't know how long the magic power she poured into the magic will be enough to support Saitama's flight.

However, once Saitama left the atmosphere and the air resistance behind, even if the magic power from the magic radiation was exhausted, his inherent speed would be difficult to change. Therefore, as long as Saitama was sent out of the atmosphere by Hayashi Maki, he should still maintain his previous speed and continue to fly away from the planet.

A speed of nearly eight thousand meters per second!

The Kinos communicator did have the advantage of being able to transmit signals regardless of distance, but that was only on the surface of the planet. Now that Saitama had flown into deep space, Lin Zhenxi had no idea if the communicator's signal could reach that far.

Thinking of this, Lin Zhenxi quickly turned on the communicator and shouted into it: "Uncle, uncle! Can you hear me? Are you still alive?"

However, all that came through the communicator was noise from the other end.

it's over...