What's the secret of the strange signal?

1972 One day in the spring, a young Scottish astronomer Lauren was looking for information in the library of Glasgow University, and a very interesting record attracted his great attention. The record was left by Norwegian professor Thomas. This paper describes that when he was working at Philips Experimental Radio in the Netherlands on April 3, 1928, he accidentally received some strange signals that appeared every 3 seconds in order to correct a PCJJ radio station. Because the signal is very regular, it is obviously not caused by mechanical failure. Stuma was very surprised, so he reported it to Wen, the communication director of Philip Radio. Wendabo is also very interested, speculating that it may come from outer space. So, they arranged an experiment to transmit the "S" in Morse code at a wavelength of 3 1.4m at an interval of 20 seconds, that is, the signal "beep-beep-beep". Since September 25th 1928, 16 days has been sent continuously, but unfortunately no reply has been received.

On June 65438+1October 1 1 in the same year, a telegram from hals claimed that it also received a wonderful signal that appeared every 3 seconds. Stoma rushed to the scene immediately and heard the signal of the last 3 seconds. Later, this strange signal suddenly appeared irregularly in the interval of 3 ~ 15 seconds, as if someone was trying to get in touch with us.

The matrix was overjoyed, and another signal transmission was arranged on1October 24th 10. As a result, I received the same strange signal in Oslo. This news immediately attracted the attention of many people, and many experimental radio stations focused on this wonderful signal. Sir Wharton of Britain reported that he received this signal 1929 from February to April. On May 9th, 1929, another French scientific research ship which was observing the solar eclipse in Indian waters also received the same signal unexpectedly. However, no one can answer what this strange signal means.

After 1929, except 1934, an amateur radio enthusiast complained that he had received this signal and never heard from it again.

After reading these records, Lauren is convinced that this signal comes from the civilized world outside the earth. He tried to decipher the signal through all scientific logical reasoning. After some efforts, he announced that he finally understood the main meaning of the signal: "A spaceship from Mu Fu constellation is orbiting the present galaxy." The galaxy here refers to the solar system.

Later, Lauren cooperated with Professor Perswell of Stanford University in the United States to make a more detailed analysis of Thomas' records at that time, which further confirmed that the spacecraft came from a star in Sagittarius. Because our earth civilization was limited by the technology at that time, we failed to seize this favorable opportunity to get in touch with the spacecraft. At that time, although Toma sent a signal, the wavelength of the signal was too long to cross the atmospheric ionosphere and the spacecraft could not receive it. The pilot of the spaceship couldn't receive our signal, thinking that our solar system was a barren land without wisdom and civilization, and left quietly in disappointment after hovering for a period of time. Is that really the case? It's really intriguing.