"Target 70 million years ago, stop 200 kilometers in front of the ancient Fuji crater ... launch Mobius orbit!" This is the departure password given by Captain Banno when the Kesai spacecraft was launched in the first episode of "Texas Kesai Dinosaur". Mobius is an important theory in topology. It was first put forward by the German mathematician Auguste Ferdinand Mobius in 183 1 and has been widely used in the field of electronic engineering. In the play, it is by using the practical product of this theory-Mobius orbit that Kesai can successfully enter the subspace. However, it is not enough just to fly to Cretaceous in it. Kesai's idea of traveling through time and space is based on the hypothesis of "superluminal particles" in the present world.

According to Einstein's theory of relativity, the speed of any object will not exceed the speed of light. However, in 1967, Dr. Gerald Feinberg, a physicist at Columbia University, first proposed the possibility of tachyons, also known as tachyons.

Dr feinberg believes that the formula of relativity does not allow the acceleration from sub-light speed to light speed. Because human beings all live in the world of sub-light speed, they are all imprisoned in the existing state by insurmountable light barriers. However, a barrier always has two sides, so on the other side of the light barrier, there will be a class of particles all moving at superluminal speed, so that the light speed is the lower limit of superluminal particles, and its energy tends to zero, but its speed tends to infinity. Moreover, when moving faster than light, time will go back. In this way, as long as we invent a technology that can control the generation and emission direction of superluminal particles, we can transmit information and then objects to the past.

1973, two Australian scientists obtained experimental data showing the possible existence of superluminal particles in the observation of high-energy cosmic rays, but so far, people have not captured the real superluminal particles, and they know little about this field, which is not a complete theory. In "The Dinosaur Tejikesai", the situation became that the superluminal particles were discovered and put into practical use in 2 1 century, which made time travel return from fantasy to reality.

The whole launching process of the Kesai spacecraft: the time travel accelerator under the fuselage produces Mobius orbit, which opens the way to subspace. Then, the superluminal particle engine behind the fuselage started, pushing the spacecraft into subspace and flying at superluminal speed, thus shuttling back and forth between the "modern" of 2 1 century and the "past" 70 million years ago.

Time machine and time travel not only encounter difficulties in scientific theory, but also have an impact on philosophical theory. If we can really go back to the past, then many times, as long as we are not careful, there will be endless troubles (for example, in the play, the director of the time and space administration complained that the Kosei team was sent out because of the attack, and the Kosei team was attacked because of the attack). Generally speaking, there are four forms of "cause and effect" in literary and film works related to time machines:

1, the hero goes back to the past and finds himself a part of history.

2. The hero went back to the past, changed history, and found that he disappeared or had any major changes.

3. The hero goes back to the past and finds that nothing has changed since he returned to modern times (that is, the theory of parallel universe).

The hero went back to the past and found that everything had changed except himself after returning to modern times. Influenced by 1968 American science fiction masterpiece 200 1: A Space Odyssey (200 1 A Space Odyssey for short), it is not a distant future when planning stories. The same time background was also used in スタールフ, which was filmed in the same year.

Thanks to the popular science propaganda received since childhood, the 2 1 century is a sunny and happy future for many young people in China, and the broadcast of "Dinosaur Tejik Race" has deepened our vision for the coming new century, imagining how to roam freely in the universe in the future and shuttle back and forth between the past and the present without any obstacles ... Who would have thought that when we really entered the year 2000, we would only discover the things of the 20th century? In addition to living a comfortable life, we can neither travel through time nor interstellar travel, and there are countless old and new problems to be solved ... because time travel has become feasible because of the discovery of superluminal particles, which naturally awakens many dirty and ugly souls. Therefore, in order to standardize the order of time flight, crack down on crimes across time and space, protect time immigrants and maintain the original appearance of history, the Time and Space Administration has set up a special guard to inspect all historical periods of the earth, and the Cosai team is one of these time and space guards. "Time Warrior" is the name given to members of Cosay team in China edition. Its original Japanese name was "タイムGメン" and its English name was Time G-men. Therefore, the full name of Kosai team in Japanese is: タィムメコセィドンンンドンンンンンンンンンンン In fact, it is "タィムメコセィダー". "G-men" is the abbreviation of "government personnel", which was originally the abbreviation of FBI agents in the United States, and was later introduced into Japanese. Because the middle and late 1970s was the golden age of Japanese criminal investigation TV series, and Hideyoshi Nagano was also the screenwriter of the famous gangster work "Special Search Frontline" at that time. Therefore, in line with this trend, the Kesai team was set as a police role of "time patrol" when planning. By the end of the whole play, many criminal gangs appeared among their enemies.