Liu Feng knew the date of the make-up exam, just two days before the start of school, counting the days, it is now February 6th, there is less than a week left, well, to be precise, there are only 5 days left, because it is on February 14th, that is, Valentine's Day, the school starts!

5 courses in 5 days, English, advanced mathematics, inorganic chemistry...... Which book is not a "huge work" with a thickness of one or two hundred pages, even if he is a college bully, what can he learn in just 5 days?

Thinking of the thickness of the book, Liu Feng felt a headache, did he really have to spend a lot of money to rebuild?

Liu Feng was very unwilling, but he tried his best, and he was not sure that he would be able to pass the make-up exam, unless, unless he could cheat!

What, cheating?!how is that possible!

You know, he is an honest young man, how could Liu Feng do such an undisciplined thing as cheating? Of course, he didn't think about doing it, otherwise, he would have passed the final exam in a chic manner, and he could wait until today!

Of course, cheating can't cheat, and it's impossible to cheat in his life, but what if he can cheat?

Thinking of this, Liu Feng remembered that he was also a person who had a hanging, although this hanging didn't seem to be useful now......

……

It probably happened on the day of Chinese New Year's Eve, which was a snowy day, Xianglin's sister-in-law......

Eh, it was Liu Feng, Liu Feng and his parents finished calling, he was lying alone on the single bed in the dormitory, although the old Meng guy did not go home, but he couldn't see anyone all day long, on the night of Chinese New Year's Eve, the guy did not return to the dormitory, I don't know where to run.

A person was bored counting the fireworks outside the house, and then, Liu Feng fell asleep.

In a daze, Liu Feng had a dream, in which he turned out to be an omnipotent god, with countless immortal soldiers under his command, as long as his thoughts moved, these people would point to where to fight, and they were willing to be at his mercy......

Just when he was commanding hundreds of millions of divine soldiers and gods to arrange troops in a dream, he had a whim, wanting to take a closer look at what these subordinates looked like, but accidentally, he found that these people turned out to be molecular atoms, and when he looked closely, they were decomposed into countless neutron electron photons and even hadron quarks......

When he arrived here, Liu Feng was shocked in his heart, and secretly said that Lao Tzu really deserved to study chemistry, and he could even dream of things like molecules and atoms...... But as soon as this thought came to him, he woke up.

After waking up, he only felt that all this was so real, as if he could really manipulate these microscopic particles, and the feeling of commanding thousands of troops and horses to fight where to fight was really not something that ordinary people could experience!

Liu Feng has experienced it in a dream, and he knows the taste of the marrow, that feeling is even more refreshing than a spring dream, it is really unstoppable!

After waking up, he tried to grasp that feeling several times, but he couldn't do it, so Liu Feng could only lie quietly on the bed, staring at the iron frame of the single bed with dull eyes, and the whole person seemed to be stupid.

But I recalled the scene in the dream again and again, because this thing is not dead.

Finally, in the dead of night, and I don't know how long it took, Liu Feng only felt that the scene in front of him had changed abruptly, and the slender iron frame kept enlarging and enlarging and enlarging, until he saw a leisurely green iron atom, like a regular army waiting for review, the regular rules were quietly arranged, dense and neat.

His heart immediately moved, this, this turned out to be true!

He really "saw" the iron atom!

There are 26 protons in the huge nucleus, surrounded by 4 circles, 2, 8, 14, 2, and 26 electrons arranged in a regular manner......

Then, he withdrew his gaze and changed his gaze: calcium carbonate on the wall, water molecules in the water glass, nitrogen, oxygen, CO2 and other molecules in the air, and even lively and lovely photons from the dim light......

Liu Feng found that a magical door was slowly opening to him......

…………

It has been proved that after information is entered into the brain, the forgetting rate is faster and then slower over time, especially in the short time when it is just recognized, the forgetting is the fastest, which is the famous Ebbinghaus forgetting curve.

The Ebbinghaus forgetting curve shows that a person who has spent half a day remembering information will forget it after an hour, if he recalls it in an hour, he can remember it, it is better to recall it after a day, and if he recalls it after three days, that information will be kept in his head for almost a long time.

However, looking at the few textbooks on the computer desk that were almost as high as the computer, Liu Feng felt that the one hour of the Ebbinghaus curve was full of memory, and for him, it must be unscientific!

Even if he didn't eat or drink for the next few days, and only focused on memorizing and understanding, it would be impossible for him to finish all 5 courses!

Therefore, sitting on the recliner in the business hall, Liu Feng's eyes were dull and he flipped through the textbooks of advanced mathematics, almost desperate, could he really only honestly pay the fee to retake?

Liu Feng, who was unwilling to work hard part-time and get up early and be greedy for his hard-earned money by the school, racked his brains, and finally had a flash of inspiration and finally decided to transfer the method to Kaihang!

After a few days of exploration, Liu Feng found that he could control the microscopic particles within a certain range, splitting and combining, just like the general's dispatch of troops to arrange the formation, he could manipulate the microscopic particles to form various formations, even if he gave up the control, this formation would immediately scatter and rearrange!

But what does this have to do with re-exams?

Of course it is!

Liu Feng knows that in the final exam or even the make-up exam, all the questions in it can find the source or even the original question from the textbook! In other words, as long as he can memorize the basic textbook and even understand it thoroughly, not to mention 100 points, 90 points will basically be no problem! Even if he can simply memorize the original textbook, he can still be sure that he will be able to pass the make-up exam without understanding!

Therefore, it is imperative that he memorize all the key points of knowledge in the textbook!

But all this, based on his own memory ability, is completely unrealistic!

So, of course, Liu Feng can only work on his ability, and what does the transmission of information rely on?

…………

As we all know, the information from books is transmitted to the brain, and the process of being remembered by the brain is roughly as follows: first, the information in the book is transmitted to the eyeball through light signals, then the eyeball converts the light signal into an electrical signal and transmits it to the brain, and finally the memory cells of the brain process and store the electrical signal, which forms a memory.

Whether it is an optical signal or an electrical signal, the propagation of its physical quantity is through photons or electrons.

Liu Feng did an experiment, he could trace the information photons transmitted by a small poem of about 20 words all the way, cross the eyeball, convert them into electrons, and then trace these electrons all the way to the nerve cells, until they were received and memorized by the nerve cells.

However, on the way to the process of transmitting electrical signals to the brain, Liu Feng found that the electrical signals were constantly weakening, and they were screened and tempted by various cells in the brain.

As a result, the electrical signals that can be transmitted to nerve cells and memorized by the end are not even one hundredth of what they were at the beginning!

Liu Feng had previously read from a scientific journal that only 1% of the information continuously received by the five sensory organs of the human body was processed by the brain, and the remaining 99% was sifted out, which coincided with his tracking of electrical signals.

Moreover, even so, this information is finally memorized by nerve cells, and after an hour, some nerve cells die, and this memory is naturally incomplete, and it is reflected in the real memory, that is, the memory is partially forgotten! This proves the correctness of the Ebbinghaus forgetting curve.

Following here, Liu Feng couldn't help but smile a little bitterly, the efficiency of human memory is really slow!

But what if he could transmit these electrical signals to the nerve cells in their entirety? Will he be able to remember 100 times as efficiently as someone else?

Moreover, in response to Ebbinghaus's forgetting problem, he can also restrain these signals and finally forcibly transmit them to more nerve cells, ensuring that even if some nerve cells are unfortunately killed, he can remember them for a long time.

After all, there are 14 billion nerve cells in the human brain, and only 1/10 of them have been developed and utilized.

Even so, the human brain can record about 86 million pieces of information in life every day, and can store 100 trillion pieces of information in a lifetime! All kinds of information add up to 50 times the knowledge of the Library of Congress, that is, 500 million books!

If he can really do it, and fully use these nerve cells that are waiting to die, then ......

Thinking about this, Liu Feng instantly felt that he seemed to have accidentally challenged the limits of human memory, and a big university bully was about to rise......