Wizard: I brought the wrong system

Moments later, Yarrow suddenly woke up.

"Isn't this a ready-made communicator?"

As early as when he was in the Owl Academy, Yarrow had the idea of ​​making communication equipment, but because of the subsequent troubles, he ran out of the academy before the communication equipment 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 caused it, and the range of perception is too small.

Like when he first arrived in the Llanelli Kingdom, if Yarrow mastered the water mirror technique, he could release the water mirror technique on the river, and he would be able to find Perrin Manor soon, without wasting 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 was quietly opened, and one after another, water polo the size of quail eggs flew unsteadily into the wild.

Just like the dripping rainwater, if it doesn't fall on the ground or on the body, it's hard to find that it's raining.

The water polo of quail eggs is no more than a big raindrop, even in the daytime, it is difficult to be found, not to mention that it is dark now, as long as you are careful not to be illuminated by the light from the window, you don't have to worry about being discovered.

……

"The fastest release can fly 13 meters away, but due to the high speed, the water polo shakes seriously due to the wind force, and the scene displayed by the water mirror is too blurred."

"If you want to maintain the stability of the scene on the water mirror, the maximum speed cannot exceed half a meter per second. If there is wind, the result may be even worse."

"After the water polo fell to the ground, it also shattered directly, and the internal magic pattern structure was also destroyed."

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

"The signal of the water mirror technique is the largest and how far can it be transmitted?"

The farther the signal can be transmitted, the greater the space 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 ground outside to gradually detect it.

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

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

As long as this refugee camp is wiped out, it will be difficult to find such a perfect natural and dangerous place in the future, and it will be like a domino, sweeping from the back of the empty power until the entire earldom is completely wiped out!

"The water mirror technique may be used soon, why not verify the method of using it with the water mirror technique together now."

For the time being, Yarrow only thought of two ways to cooperate.

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

Then use the 'feather fall technique' in conjunction with the use.

"Borrowing the principle of 'flying on the water', the observation water polo can be suspended and moved forward."

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

Still copy homework according to the answer.

The moment the water polo is released, quickly add a 'Feather Fall' to it according to the 'Dragon Fly'.

Looking back, seeing the dim scene emerging on the water mirror, Yarrow couldn't help but feel refreshed.

"Sure enough!"

'Dragonfly' can convert wind resistance into upward thrust, and this thrust will offset part of the gravity with each other, and the remaining force that is not completely offset will only make the 'water polo' rise slowly while moving forward, and will eventually maintain a balance point.

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

"Because the outer structure cannot be controlled, the water polo will rise in an arc, and when it reaches the crest, it will circle around in a small circle, and then continue to rise again and again. This trend is a bit like falling leaves."

"If you adjust the angle again, can the 'observation water polo' circle around and check the surrounding situation?"

This level of modification is not difficult, Yarrow quickly found a suitable replacement structure from the previous design of the 'Feather Fall'.

It is a variant structure of the "Yulong Shenfa". With the help of the initial velocity of the "water polo" and the deflection effect of the "feather falling technique" on the resistance, 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 in practice.

After copying too many answers, Yarrow already possessed a certain degree of muscle memory, and he was able to perform the 'Mark Water Polo' in the 'Water Mirror Technique' without looking at the drawings on the wall.

Of course, this is also related to the relatively simple structure of the magic pattern of 'marking water polo'. For example, in the water mirror technique, Yarrow cannot use it independently.

"Try to see the effect of using the new structure."

Still in the same way, first cast out the 'Mark Small Water Ball', and then quickly attach 'Feather Fall' to it.

result……

Snapped!

A few drops of water slowly slid down the wall.

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

"The initial velocity of the water polo needs to be increased, and the arc must be increased. The faster the initial velocity, the faster the rise will be under the structure of the 'Feather Falling Technique', and the greater the arc, it will be able to bypass the walls 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 seemed to be a wireless rope, it was suspended and began to swing around the moment it was pushed out, circling backwards and forwards. flight.

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

As if the wireless rope in the middle is entangled with something, although the ball is still circling, the orbiting trajectory is getting smaller and smaller, and at the same time it is still rising rapidly.

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

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

Yarrow looked at the scene on the water mirror and wrote down the conclusion of the use in his notebook.

[It is impossible to have no wind at high altitudes, and many times you can’t perceive the wind direction at high altitudes on flat ground... Isn’t it suitable for high-altitude environments? 】

[Also... Even the low-altitude environment has many changes, the wind direction will change after all, and the Feather Falling Technique attached to other objects cannot be adjusted at any time like the 'Dragon Swimming Technique'. Throwing is different, and observing the trajectory of the water polo will also be disrupted. 】

……

'Observation water polo' can be compared to 'paper airplane', the 'feather fall technique' released is its wings, once thrown, it can only be left to float by itself.

But 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 airplanes can do the job of monitoring drones, which is definitely a good deal.

[With this method, the follow-up pathfinding does not need to use the pendant to lift into the sky to observe the direction. The spell fixed on the pendant is after all an official wizard's spell. For the magic power of an intermediate apprentice, the burden is too great]

After looking at the scene on the water mirror and confirming that he arrived in a specific direction, Yarrow looked at the water polo in the sky.

"It's about 20 meters away, right? What's the signal limit of the water mirror technique...Hey! Wait!"

Yarrow suddenly noticed something and carefully observed the top.

"Why is there a light spot on the top of the mountain? Could it be that they have guards on the top of the cliff? How did those guards get up?"

Thanks to 'Flight 404 of the Great God of River Crab' for recommending tickets every day, thank you for your unwavering 'T-T'

(End of this chapter)