Wizard: I Brought the Wrong System - Chapter 367 Water Mirror Technique - Surveillance Drone

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After a while, Yarrow suddenly woke up.

"Isn't this an off-the-shelf communicator?"

As early as in the Owl Academy, Yarrow had the idea of ​​making a communication device, but because the subsequent troubles came too quickly, he ran out of the academy before the communication device was completed.

"This trick can not only be used as a means of communication, but also an excellent detection trick, which perfectly complements my lack of means."

Although the cat-shaped fist can perceive the surrounding movement, it cannot intuitively see what is causing it, and the range of perception is too small.

Just like when he first arrived in the Kingdom of Llanelli, if Yarrow mastered the water mirror technique, he could completely release the water mirror technique against the river, and he would soon be able to find the Perrin Manor, so he didn't have to waste time in the wild.

Of course, if you want to make good use of it, you must first understand the basic attributes of the water mirror technique.

The rear window of the wooden house quietly opened, and water balloons the size of quail eggs flew into the wild one after another.

Just like raindrops, if it didn't fall on the ground or on the body, it would be difficult to find it raining.

The water polo of a quail egg is no more than a big raindrop, even in the daytime, it is difficult for people to find clues, not to mention that it is dark now, as long as you are careful not to be caught by the light from the window, you don’t have to worry about being discovered.

…

"The fastest release can fly thirteen meters away, but due to the high speed, the water polo swayed severely due to the wind, and the scene displayed by the water mirror was too blurry."

"To maintain the stability of the scene on the water mirror, the maximum speed cannot exceed half a meter per second, and if there is wind, the results may be even worse."

"After the water polo landed, it shattered directly, and the inner magic pattern structure was also destroyed."

It can be seen that the water mirror technique is best used in advance, or used together with other means.

"How far can the signal of the water mirror technique be transmitted?"

The farther the signal can be transmitted, the more space is used.

If you want to know the maximum distance of the water mirror technique signal transmission, the best way is to leave the wooden house and find a flat area outside to gradually test.

But now the enemy is dark and we are clear, and acting carelessly, maybe he will be plotted against.

- The remaining refugees from the surrounding towns are basically gathered here. Since the Fernando family's goal is to establish the undead realm, aren't these gathered refugees just a piece of delicious fat?

As long as this refugee camp is eliminated, it will be difficult to find such a perfect and dangerous place in the future. Like dominoes, it can start sweeping from the rear of the empty power until the entire earldom is completely destroyed!

"The water mirror technique may be used soon. It is better to verify the method of using it together with the water mirror technique."

For the time being, Yarrow only came up with two ways to cooperate.

One is to borrow a transparent device, such as 'glass' or 'ice', and then place the transparent device on the hot air balloon to continuously monitor an area.

Then it is used in conjunction with the 'feather fall technique'.

"By borrowing the principle of 'dragonfly on the water', the observation water balloon can be made to levitate forward."

"The hot air balloon is too eye-catching now, let's use the 'feather fall technique' first, and see the effect."

Still copying the homework according to the answer.

At the moment when the water polo was released, he quickly added a 'feather drop technique' released in accordance with the 'dragonfly touch'.

Looking back, seeing the dim scene on the water mirror, Yarrow couldn't help but lift his spirits.

"Sure enough!"

'Dragonfly on the water' can convert wind resistance into upward thrust, and this thrust will partially cancel each other with gravity. The remaining force that is not completely offset will only allow the 'water polo' to move forward while slowly rising, and will eventually maintain a balance point.

The water polo itself is not affected by too much external force, and it can naturally shoot a stable scene.

"Because we can't continue to control the structure on the outside, the water polo will rise in an arc, and when it reaches the crest, it will circle a small circle, and then continue to rise again and again. This trend is somewhat like a falling leaf."

"If you adjust the angle again, will you be able to let the 'Observation Water Polo' circle around to check the surrounding situation?"

This level of modification is not difficult, and Yarrow quickly found a suitable alternative structure from the previous design of the 'feather fall'.

It is a variant structure of the 'Dragon Body Movement'. With the help of the initial velocity of the 'water polo' and the deflection effect of the 'feather fall' on the resistance, the gravity and resistance are converted into centripetal force and deflection force, thereby forming a circular swinging motion.

After calculating that there was nothing wrong in theory, Yarrow began to operate.

After copying too many answers, Yarrow already has a certain degree of muscle memory, and he can already perform the 'marked water polo' in the 'water mirror technique' without having to look at the drawings on the wall.

Of course, this is also related to the simpler structure of the magic pattern of the 'marked water polo', as in the water mirror technique, Yarrow can't use it independently.

"Try to see how the new structure works."

It is still the same way, first cast the 'marked water polo', and then quickly attach the 'feather fall' to it.

result…

Snapped!

A few drops of water slowly fell on the wall.

Yarrow slapped his head: "I almost forgot that this is not an open space, but also consider the obstruction of the wooden house wall!"

"The initial speed of the water polo must be accelerated, and the arc must be increased. The initial speed is accelerated, and under the structure of the 'feather fall', it can rise faster, and the arc can be increased to bypass the wall of the wooden house."

After modifying some parameters, Yarrow released the water polo again.

Soon, an inconspicuous small water polo flew out of the window again. Above it was like a wireless rope. It was suspended and began to swing around the moment it was pushed out, wrapping around backwards. flight.

But at this time, the small water polo, which was doing regular exercise, suddenly lost its stability.

Like the wireless rope in the middle wrapped around something, although the ball is still circling, the trajectory that can be traversed is getting smaller and smaller, and at the same time it is rising rapidly.

Aroma, who was looking at the water mirror, noticed this problem, and at the same time heard the sound of the window shaking, and immediately discovered the cause of this change.

"The mountain wind... Fortunately, this wind blows from the bottom to the top. If the wind blows in other directions, the centripetal force balance of the water polo may collapse. Once the centripetal force balance cannot be maintained, the water polo will fall immediately. Falling."

Yarrow looked at the sight on the water mirror and wrote down the conclusions of use in the notebook.

[It is impossible to have no wind at high altitude, and many times the wind direction at high altitude cannot be sensed on flat ground... Is it not suitable for high altitude environment? 】

[Also...even the low-altitude environment has many changes, the wind direction will change after all, and the feather fall technique attached to other objects cannot be regulated at any time like the 'Dragon Body Movement'. The results are different, and the trajectory of the observed water polo will be disrupted as well. 】

…

'Observation water polo' can be compared to a 'paper plane', and the 'feather fall technique' released is its wings. Once thrown, it can only be left to float on its own.

However, the 'paper airplane' is just a 'paper airplane' after all, the cost is not high, and sometimes it can be thrown out repeatedly.

A few paper planes can do the job of monitoring drones, which is definitely a good deal.

【With this method, you don’t need to use the pendant to lift up to observe the direction in the follow-up search. After all, the pendant is fixed on the spell of the official wizard. For the magic power of the intermediate apprentice, the burden is too great.】

Looking at the scene on the water mirror, after confirming that he reached a specific direction, Yarrow probed to look at the water polo in the sky.

"It's almost twenty meters away, right? What's the signal limit of the water mirror technique... Hey! Wait!"

Yarrow suddenly discovered something and carefully observed the top.

"Why are there light spots on the top of the mountain? Could it be that they have guards on the top of the cliff? How did the guards get up?"

Thank you for the daily recommendation ticket of 'River Crab God Flight 404', and thank you for your perseverance 'T-T'

(End of this chapter)

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