Juchen found that he still has the spirit of craftsmanship, the premise is that the main research and development work of the hidden cylinder is carried out on the computer, and then it is manufactured with a 3D printer that is reduced in equal proportions, which looks quite exquisite, for this reason, he also specially purchased a DIY printer of tens of thousands of yuan, giving full play to the ability of "Zen and the Art of Battery Car Repair", slowly assembling it, understanding every detail, and possible improvements.

He couldn't drive an RV that was too big, so the space in the RV became even more cramped after the 3D printer was bought.

It is not possible to do research and development without money, and the 1 million he used to "gamble" cannot be moved, so he can only crowdfund, anyway, the patent application has been submitted, and he is not afraid of revealing his ideas.

He did it himself, and cobbled together a bunch of open-source digital models, but of course the result was loose and crumbling, and it didn't look very high-grade, and of course the security performance was not good. After the crowdfunding was issued, a bunch of professionals in the lock-making industry sneered in the comment area, claiming: "This level of security performance, I can open it in 10 minutes, what Da Vinci hides the secret cylinder, it is outdated." ”

There is also an enlightening message: "Please refer to the Master password lock, clever use of clockwise wheel linkage, counterclockwise release linkage mechanism, one wheel drives two, can be rotated in different directions at the same time to align the groove of the three wheels, you can hide more details, much higher security." ”

This so-called "Master combination lock" is the kind that often sees left and right rotation on the safe, the principle is that there are 0 to 39 on the three wheels, a total of 40 grids, only know three groups of numbers, such as "11, 22, 33" to get the correct groove, its possible combination is 64,000, and it is "inference", a turntable with three wheels, very simple, than the Da Vinci secret tube that each wheel needs to be equipped with a turntable looks much more ingenious.

How to Use:

1. Turn more than three times to zero;

2. Start to align the first set of numbers, at this time use clockwise, the mechanical structure determines that the first two wheels move together in this direction, the first wheel is the first group of numbers, and the position of the other two wheels does not matter, they are "accompanied";

3. The first group is aligned, it is the turn of the second group, at this time it rotates counterclockwise, the structure determines that this direction is the linkage of the first wheel and the second wheel, only the first wheel moves, at this time some people say, the first group is not aligned?

Actually, it doesn't matter, because what we need is the relative position of the groove, that is, the relative position of the three wheels determines whether the groove can be aligned, so just like the relative motion of Newtonian mechanics, turning the first wheel, the second wheel will do relative motion, and it can also come to the correct position, and now we get the accurate relative position of the two wheels!

4. The way to deal with the third set of numbers is also relative motion, at this time switch to clockwise again, the first two wheels are linked, the relative position between them remains unchanged, through movement, the third wheel can be made to do relative motion to the correct position, so that the three wheels are in place, you can open the Master!

If Juchen's hidden cylinder is just for opening and locking, Master's mechanism with his unique counter is powerful enough, but Juchen's design mainly uses a bunch of password encryption to record the key value, so three sets of numbers or letters are too few.

The inspiration of this master is that he can use gear linkage to create a more concise and easy-to-operate rotation method, so that the dense letters of the traditional da Vinci secret cylinder no longer appear, but replace it with two turntables, one turntable is used to count, record the moment you are turning the first few wheels, after the wheel is in place, the counter is dialed to the next digit, and so on, you can use two turntables instead of N, if it is lowercase letters + numbers, it is 26 + 10 = 36, if it is uppercase and lowercase letters +Number + plus + minus, that's 26 + 26 + 10 + 2 = ...... A sensitive number (technical term: BASE6+4).

Dyson, the UK's most famous high-end consumer brand, is best known for inventing a unique motor, which is 2 or 3 times smaller than the one used today at the forefront of N centuries ago (visually), and they are proud of it, and they can also use it to drive ultrasonic impellers, dramatically reduce hair dryer noise, and then they want to enter the electric vehicle industry with this.

It is said that the Dyson electric motor has been developed frantically for 20 years, and Juchen feels that his small improvement seems to have put him 20 years ahead of the secret cylinder industry.

Of course, this is a joke, so simple, can't industry experts think of it?

I'm afraid the only thing I can't think of is that no one wants to use mechanical hardware to store keys, after all, it's the electronic age, the unreliable electronic age, because human eyes can't see the things in the USB flash drive, I don't know when the USB flash drive will be GG, or the visible secret cylinder makes people sleep at ease, if your whole net worth is on cryptocurrency, such as wikileak's money.

After coming up with this idea, Juchen was proud for a long time, and then saw a comment that made people's backs chill down, saying that ultrasonic waves can easily detect the grooves in the hidden cylinder, and for the FBI and other institutions, this kind of mechanical structure is useless.

It can block high-energy rays, but metal can't block ultrasound.

After studying for a while, I am afraid that I will have to add high-contrast acoustic impedance paint to the upgraded version in the future, so that the ultrasound waves can be refracted and reflected inside that makes hackers crazy.

As his creativity continues to join, there are more and more bitcoins in crowdfunding, and it has reached 40, with a market value of $7,000 a piece, which is equivalent to $280,000!

Juchen unceremoniously put the $280,000 into his blind gambling project, making a profit of $68 a day, about 450 yuan, plus the previous 250 yuan, he could win 700 yuan a day, and after about 11.22 years, he lost it all after ten years.

Juchen suddenly remembered Ivanka, dear, if you are with me, you can spend 700 yuan a day, it seems that it is almost the same as the small amount of money she makes as a model.

And Juchen is still sitting firmly in the Diaoyutai, and he doesn't need to force a smile like a singer from the end of the world, so it doesn't seem appropriate to say this, anyway, Ivanka herself seems to like working as a model.

What can he do if he can earn 700 yuan a day? Juchen can only sit in the RV and laugh, not sit in a serious big house and cry.

The biggest change is to be able to go to a café with a good environment without psychological barriers, and order a cup of coffee for more than 100 yuan, okay, without the feeling of vomiting blood.

On this day, on a date with Ivanka, they each ordered an expensive cup of coffee, Ivanka looked at the menu and said by feeling: "You are rich?"

Juchen smiled: "Occasionally, it's a little extravagant." ”

Ivanka: "It's not a light luxury, it's a light corruption. Is this how you chase girls?"

Juchen: "It's good if you're happy, chasing or not chasing, in fact, it's essentially the same." ”

Ivanka pondered: "Hmm...... It seems to be full of philosophical truths, and I have to think about it. ”

She pondered for a long time and asked, "What is in mind when you say that it is essentially the same?"

Ju Chen's mind was blank, no, only Ivanka's snow-white arms, but since she asked so, of course she couldn't tell the truth, so she could only flicker: "I thought of a picture." ”

Ivanka: "Huh?"

Then Juchen found out a picture, it was a huge portrait of a heavy truck with a height of dozens of meters, vaguely an ancient Chinese sage or something, the following subtitle read: The boss asked me to pull a person, I thought it was a big deal, but I didn't expect it......

Ivanka chuckled: "It's funny!"

After a while, her train of thought turned back: "However, what does this mean?"

Only then did Juchen reveal the philosophy hidden in this story: "You see, how strong the truck needs to overcome gravity, the energy in the truck comes from diesel, diesel is changed from the corpses of prehistoric sea creatures, and the energy comes from sunlight. In fact, this hides the easter egg of the mass-energy equation, overcoming gravity requires energy, indicating that mass can be converted into energy, and in turn, energy can be transformed into mass, and there is no essential difference between mass and energy. ”

it.,When you fool people casually, you can say it so profoundly.,It's the most suitable for the girl who is going to philosophy.。

Ivanka was really activated by this out-of-the-box thinking, and said: "Quality is the same thing as energy, and it's scary to think about it......"

Ju Chen: "If you understand the standard model of elementary particles, you will have a deeper understanding, we know that the mass of protons is much larger than that of electrons, which is 1836 times, but when the protons are at rest, the mass is only 1% of the original, and all the rest of the mass comes from the three quarks it is composed of being confined together by high energy, so in fact, 99% of the mass of protons comes from energy!"

Ivanka: "It's good to know physics, pure philosophy really belongs to the liberal arts, I don't know much about what you said." "Actually, it's not that I don't understand it, it's that I don't understand it at all. No matter how smart a person is, it is impossible to receive a large amount of information at once that has never been exposed to it.

Fortunately, Juchen came back from those things in time: "So, as long as you are happy, whether I want to chase you or not, isn't the result the same? ”

Ivanka: "Come on, maybe you can make it!"