I kidnapped an alien civilization

Question Time

Now the biggest doubt in Li Mo's mind is the small star flying at high speed 7.5 light years away. If it is just a small high-speed star, it will be fine, but if it is an aircraft or something, then the problem will be big.

However, this kind of question obviously does not conform to the general rules of the Universal Civilization Law, and there is no way to directly ask the big-headed Pajero people.

Li Mo thought for a long time, and finally asked: Can I start asking questions now?

The gray fog billowed on the high platform, and the voice of the big-headed Pajero came.

Please ask questions!

Is there such a small star in the universe? Li Mo asked tentatively.

The big-headed Pajero didn't say anything to stop him.

He was overjoyed, and continued: Its trajectory is a straight line, and its speed has reached 1/2 the speed of light.

What would it be if it wasn't a small star?

These are actually two questions, and Li Mo nervously waited for the answer.

The gray fog billowed on the high platform, and the big-headed Pajero seemed to be thinking.

a moment later

There is no such small star, it's unscientific! The big-headed Pajero gave a clear answer. Small stars are the most common celestial bodies in the universe. Their mass and volume are much smaller than those of planets. The reason for their formation is the escaped mass during the collision of two massive stars or the explosion of a supernova.

A small star is also a star. It has its own orbit and will be affected by the gravitational force of a large star, so it is impossible for a small star to move in a straight line at half the speed of light.

What would it be if it wasn't a small star? Li Mo asked eagerly.

These are actually two questions. The big-headed Pajero saw through his conspiracy, But this kind of question is really too simple, so let me help you answer it by the way.

Unexpectedly, this alien is quite humane, Li Mo thought to himself.

Running in a straight line, the speed is half the speed of light. These two conditions determine that it can only be an interstellar spacecraft of a certain civilization. The big-headed Pajero gave the final answer.

Starship?

What is it doing flying towards the earth? Li Mo was shocked.

The high platform was filled with gray fog, and there was no answer.

Li Mo knew that his big head would not help him answer this question.

new task released

Task: apply what you have learned

Mission Statement: Scientists are not nerds, they are the builders of the future

Task requirements: Invent a technological product capable of changing the world

Task time limit: 365 days

Accept: yes/no

An invention that changed the world? This request is too outrageous. What invention can change the world? In a long way, the four great inventions of ancient China changed the world.

The invention of the compass made it possible for humans to navigate for the first time without relying on the surrounding scenery, and also made long-distance navigation possible.

The emergence of papermaking has greatly reduced the cost of knowledge exchange, allowing human beings to enter a civilized society faster.

The invention of gunpowder marks the great enhancement of human beings' ability to transform nature, and it is also of great significance to the progress of military weapons

The invention of printing is conducive to saving manpower, material resources and financial resources for printing; it is convenient for layout and modification; it greatly improves printing efficiency; it is conducive to the unification of editions;

For modern times

On the one hand, the internal combustion engine of the steam engine solved the problem of the engine of the vehicle, caused a revolutionary change in the field of transportation, further enhanced people's production capacity, made transportation more convenient and faster, changed people's lifestyle, expanded the scope of people's activities, strengthened the communication between people.

When the computer appeared, humans began to have a tool that could simulate human thinking. In the years to come, countless scientists worked hard for this goal.

These inventions have changed the way of human life and production, and they are also the crystallization of the wisdom of countless people.

The history of computing shows just how difficult it all is.

As early as 1642, Pascal invented the first mechanical computer in human history - Pascal Adder. Of course, it is just a device composed of a series of gears, which can only do addition and subtraction.

Then Leibniz invented a new type of computer, which was about 1 meter long, and a series of gear mechanisms were installed inside. In addition to its large size, the basic principle was inherited from Pascal, and it could continuously and repeatedly do addition.

The computers shown above can only be regarded as physical computers, and they perform calculations through gears.

The real electronic computer was only successfully developed in 1942. It is Eleac, which can perform 5,000 addition operations per second and 400 multiplication operations per second, which is 1,000 times that of an electromechanical computer that uses relays. Manual calculations 200,000 times.

Although its performance is very powerful, it consumes a lot of power and is expensive. It consumes more than 174 kilowatts of electricity. It is said that in those years, as long as Aleac was turned on, all the lights in the entire city of Philadelphia would be dimmed. The cost of maintaining it later exceeded 2 million! The most fatal shortcoming of Erik is the separation of program and calculation. The program instructions for directing the 20,000 electron tubes of Eleac to work are stored in the external circuit of the machine. Before a certain problem needs to be calculated, Eckert must assign dozens of elite soldiers to connect hundreds of lines by hand, and work like a group of telephone operators for several days in a hurry before they can perform calculations for a few minutes.

At this time, a mathematician stood up, and he was von Neumann, who was later hailed as the father of modern computers. He transformed Erik with superb theory and technical methods, and even put forward the famous 101-page report. This report laid a solid foundation for modern computer architecture, and until today, it is still considered a milestone document in the development of modern computer science.

Subsequently, large-scale ultra-large-scale integrated circuits replaced high-energy-consuming electron tubes. The cost was greatly reduced, and computers were able to enter thousands of households and become the driving force of social development.

So far, the development of computers has truly entered the electronic age and has become an invention that changed the world.

It's outrageous! Li Mo feels that the tasks given by the system are getting more and more difficult. Is the world so easy to change? Countless teenagers full of heroic ambitions turned into a handful of loess in the end.

Maybe the system is in a hurry? He felt that the task given by the system this time did not conform to the usual smooth style, and seemed a little anxious.

Fortunately, this time the system is very willful and gives a super long time of 365 days. Of course, this super long time is compared to the previous 30 days of each mission.

finally

He clicked accept anyway.

If you don't try it, how do you know you can't do it?