The most exciting thing for me recently is to experience a trip to China's Sky Eye.
Maybe you have heard of Pingtang because of the huge pot - the "China Sky Eye" completed in September 2016, the world's largest single-aperture radio telescope (FAST). We can use it to receive radio signals from 13.7 billion light-years away and listen to sounds from deep space and from the edge of the universe.
It takes nearly two hours to walk from Guiyang to the "China Tianyan" in Pingtang, and there is still a mountain road to go to the Tianyan.
We took a car to turn around on the narrow road of the mountains, and then walked a little on foot. We finally reached the top of the mountain in one breath. When the cauldron in the karst depression appeared in front of us, the excitement in our hearts was indescribable. . The Sky Eye cannot use mobile phones and digital devices, because it is necessary to ensure that the Sky Eye is not disturbed by electromagnetic signals, so it cannot leave a commemorative image.
*The picture comes from the Internet
Ordinary telescopes, like human eyes, can only receive visible light, and radiation other than visible light, such as radio waves and cosmic rays from distant stars, cannot be seen by ordinary telescopes. To observe those signals, it is necessary to use a special metal structure radio telescope to receive them. After the signals are specially processed, the images are presented by the computer for scientific research. This is the principle of radio telescopes.
If you have watched the sci-fi classic "Three-Body Problem", you may think of the Red Shore base in the novel responsible for contacting aliens. That's right, FAST is the Red Shore base in the real world. There are also international films such as "Golden Eye 007", "Contact" and "The X-Files", which have appeared in a large number of radio telescopes, and the sci-fi and futuristic sense brings a huge visual impact.
However, the real FAST is more shocking than the movie lens, and even some unimaginable in the movie, FAST can also do it. FAST weighs 5,600 tons. It takes about 50 minutes to walk around the edge. With such a strong detection surface, if someone uses a mobile phone on the moon, this signal can also be keenly captured by FAST.
The stars are vast and profound. To truly understand the sound of the universe, it is often necessary to make some particularly extreme technological innovations. The spiritual shock brought by FAST is great, and the impact at the level of thinking is even more profound.
1. You can use your mobile phone to order food and take a taxi online, you have to thank Mercury
The biggest inspiration that my trip to Pingtang has brought me is that the deep space of the universe has a profound connection with you and my real life that no one can imagine.
Today you can use your mobile phone to order food online and take a taxi, thanks to Mercury. why?
Because a hundred years ago, European astronomers discovered the extremely subtle gravitational anomaly of Mercury's orbit through long-term observations of the orbit of Mercury. At that time, no one could explain it, so Einstein came out. "General Theory of Relativity" was originally used to explain the anomaly of Mercury's orbit. of.
Now think about it, without the high-precision calculations of General Relativity, GPS would be seriously inaccurate. You ordered a fish-flavored pork rice bowl in Sanlitun, Beijing, and it may be sent to Cambodia or Iraq by the delivery guy (according to the wrong navigation).
Today you can use WiFi to download movies, thanks to the black hole. why?
In the process of studying black holes, Stephen Hawking pondered a complete set of mathematical methods. Later researchers solved the problem of wireless connection to the Internet based on Hawking's mathematical methods, and then have today's WiFi.
During the business trip, I discussed a question with my friends: Actually, your clothing, food, housing, transportation, and many details of your lifestyle can be connected to the deep space of the universe.
If you entered the space station, what drink would you drink? Don't underestimate this problem, think deeply, you can see the innovation depth of different "new consumer brands".
Outer space is close to zero gravity. What you telemarketing list can see is the human body floating around uncontrollably. What you can't see is that human eyes and inner ears are "incoherent" with each other, and human five senses and five senses are "incoherent with each other". ”, the human brain interprets this “disharmony” as food poisoning, nausea and vomiting.
Therefore, it is very difficult for you to eat and drink in the weightless environment of space. The drinks you drink should have a special and pure flavor, otherwise you will feel uncomfortable in your mouth, which will seriously damage your mood and worsen your mood. So, think about it, what kind of "new drink" innovation can achieve the pure flavor of aerospace level?