Distorted face, blurry picture, if it weren't for Xiao Jiu's explanation in advance, the picture in the black and white TV presented by the stereoscopic image was He Wei's own face, He Wei really couldn't necessarily see who that person was!

"This kind of imaging effect is better than nothing. It seems that we have to think of something else. He Wei frowned.

"Well, what can you do? Xiao Jiu asked.

"Since scientific methods don't work, you might as well go to them for help......" He Wei pointed up with his finger after speaking.

"You mean...... Dragon Clan!" Xiao Jiu was slightly stunned, and then stared at the powerful soul that was still lying quietly in the magic circle not far away, thoughtful.

"That's right. "Moreover, if we want to use videophones, the signal strength that we need to send and receive is bound to be much greater than that of just sending and receiving audio." When the distance between each other is too far, the signal attenuation is severe, so the call effect will be affected. And if you want to avoid this effect, in addition to seeking a solution from the machine itself, the best way is to set up a signal relay device, antenna at a high place!"

"Well, indeed. If you can set up an antenna on the top of Wuxin Mountain, it will be very helpful for the transmission and reception of signals. Xiao Jiu agreed.

"Although if there are conditions, it will be better to set up a signal satellite on the top of Wuxin Mountain, but at present, we do not have the technology to successfully launch a satellite in the same orbit, so we have to use the antenna first. He said regretfully.

"Don't worry, when we come back from the Medicine King Valley, we will have time to do this. When the time comes, we will not only set up a satellite over Wuxin Mountain, but also launch a satellite in all directions around Wuxin Mountain, and use satellite aerial photography to take a good look at the whole picture of Zhongling Continent!"

"Hmm. With a vision of a better future, He Wei began to walk towards the place where the dragon eggs were placed, and after taking another look at those dragon eggs, he asked Xiao Hei to take him to the top of Wuxin Mountain to find a way for the dragon clan to help.

In terms of the current conditions at hand of He Wei and others, although Xiao Jiu's database contains a lot of information about various advanced technologies, it is impossible to turn these materials into useful tools one by one. Therefore, He Wei and Xiao Jiu had no choice but to go back to the top of Wuxin Mountain and ask the Dragon Clan for help.

Although on the Zhongling Continent, which is known for its magic civilization, there are no stereoscopic imagers, video telephones, and so on. However, there are artifacts such as Lingering Stones, Echo Crystals, and so on, which have the function of a stereo imager. In general, these artifact items are actually no worse than stereoscopic imagers in terms of photographing, phonographic, and stereoscopic image rendering.

However, they all have a fatal flaw that pales in comparison with stereo imagers. The flaw of this fatal flaw is that it is immediate, and it is impossible to transmit the recorded image in real time!

"The purpose of these things is mainly to record and replay an important event or an important scene. In general, it is necessary to use a specific method to record the scene that needs to be recorded, and set up a seal to retain it for a long time. Wait until the need arises to open the seal in some agreed way, and let the recorded scenes be revealed. The Great Elder said, "We have a lot of Lingering Stones and Echo Crystals that have this effect, so if you want them, just take them." However, as for what you said, the magic weapon that can transmit sound and images to each other thousands of miles away, we dragon clan really don't have it, and we don't know how to make this magic weapon! So, unfortunately, for what He Gongzi said, our dragon clan really can't help much. ”

"The Great Elder is polite, with these Shadow Stones and Echo Crystals, the Elders have already helped us a lot. He Wei said gratefully.

From the very beginning, He Wei didn't hope to get a ready-made magic weapon or magic circle from the dragon clan that could be used to make video calls thousands of miles away. He came here to see if there was an imaging device that could replace a stereo imager or an LCD screen. At this time, the Lingering Stone taken out by the Great Elder, as well as the Echo Crystal, the effect of imaging and reproducing the sound was not bad, and it was completely destroyed before Xiao Jiu let He Wei see the black and white TV.

Especially, the Shadow Stone. If it can be used to make imaging devices, then the technical problems of video phones will be basically solved.

"Great Elder, how exactly should this shadow stone be used? Xiao Jiu said.

"Good. "For Xiao Jiu's small request, of course the Great Elder will not refuse. Therefore, he picked up a shadow stone casually, pinched the magic trick, and after chanting the shadow stone in his hand for a while, the shadow stone began to emit a faint fluorescence. Along with the fluorescence, there is also a figure in the Shadow Stone that does not listen to the flash. Among those figures were the Great Elder, and there were the other two elders present, who also had any worries, Youlan, and Xiaojiu...... That was the scene in the cave at this time.

After about three or four minutes, the Great Elder let go of the magic technique in his hand and looked up at Xiao Jiudao, "That's how it is generally used. The material of this lingering stone can only be regarded as average, so the duration and scope of the images that can be recorded are very limited. ”

"Hmm, how long can it be recorded?" Xiao Jiu asked.

"Half an hour at most, I'm afraid any more won't work. The Great Elder replied, "In terms of range, it is only about the size of this cave. Moreover, with the increase of time of use, the range of images recorded by the Lingering Stone will continue to decrease until it disappears. ”

"Half an hour...... Hmm......" Xiao Jiu pondered for a while and then continued to ask, "Can this kind of recorded image be played repeatedly?"

"Unlimited playback is definitely not a no-go. The Grand Elder replied, "If the seals are handled and stored properly, there is no problem with replaying them three or five times. However, the more often you do it, the image will be distorted, lost, or simply disappear. ”

"Oh. Can the Lingering Stone that has been used once be used for a second time after erasing the image inside?" asked Xiao Jiu.

"This ...... I'm afraid not. Leaving a stone is a one-time thing, and after using it once, it is not possible to record new images. At most, you can only replay the image recorded for the first time you use it multiple times. The Grand Elder replied.