Did you feel shocked when you saw the 10,000-meter seabed photographed by the "Canghai" lander?

I watched a shocking live broadcast a few days ago, which was different from the usual live broadcast in online celebrities, and the content was even more shocking and lamented. The great motherland once again proved its greatness with new technology, didn't it? Sea? The live broadcast of the 10,000-meter lander can be said that the whole country witnessed this miracle and shock.

Endeavour, carried by the support ship Discovery 1, once again entered the deepest part of the known earth? The dive depth of Mariana Trench is10000m, but different from the last solo dive, this time it will have an even more remarkable task, that is, live TV broadcast of the cabin and seabed of the 20000m submersible! This is a feat that has never been seen in human history. How to achieve it?

Strugglers around 5 am? From the mother ship? Discovery one? The scientific research ship was transferred to the sea surface for deployment. At the same time, where did the sea and Lingyun come from? Discovery II? Ensure smooth deployment on board.

Different from the 10,000-meter sea trial of 5438+00 in June, this 10,000-meter sea trial has a new perspective. The key word of this sea trial mission is "double ships and double submarines". "Twin ships" refer to twin mother ships that escort the strugglers, namely "Discovery 1 (support ship)" and "Discovery 2 (support ship)". And "double submersible" is "double submersible"? The 10,000-meter manned submersible "Struggler", and the other is a "Royal Photographer" who specially takes pictures of our protagonist at the bottom of the 10,000-meter sea? The Sea and Lingyun.

You should have seen a lot of popular science on the 10 thousand meter submersible wrestler recently. It is a purely domestic 10,000-meter submersible independently developed and manufactured by China. In the report of the first dive of Endeavour 10909 meters and the introduction of popular science, you should already know that it is impossible to communicate with the sea surface through radio waves in the deep sea of 10,000 meters. Last time, acoustic communication was used, that is, two-way communication was realized by using acoustic waves to propagate through seawater. However, this communication method is relatively primitive and cannot achieve high fidelity transmission. If you have seen the voice interview during the last dive, you will know that the sound quality is the level of the walkie-talkie. And what we're going to do this time is live TV, and it's 4K ultra-high-definition TV, acoustic communication system? ?

Among them, the sea is the key to realize real-time HDTV live broadcast! So does it have any magical equipment? How does it communicate with the sea? The answer lies in a miniature optical cable carried by the sea, which is more than 10 kilometers long. This tiny optical cable is the key to realize the communication between the deep-sea lander and the maritime exploration No.2 support ship.

The sea and the struggler sit at the bottom respectively, and after determining each other's position through acoustic positioning, the immovable deep-sea lander sea attracts the strugglers to move towards it through the blue-green light that is relatively difficult to be absorbed and scattered by seawater, so as to accurately locate each other. Sixty years after the first manned entry into the 10,000-meter Mariana Trench, real-time high-definition live communication on the 10,000-meter seabed was realized for the first time.

It is the hard work and great efforts of Chinese researchers that make this achievement come true. I pay tribute to our great researchers and hope that science and technology will develop faster!