Recently, the daily active programmers of the programming crowdsourcing company have surpassed 2000 and become famous, because the platform has joined the platform and created a great product - https cloud service.

Technicians may know that in the initial stage of the creation of the HTTP protocol and the Internet, it was transmitted in plaintext, and it was easy for others to obtain information in the middle, and many people's account passwords were lost in this way, and it was easy for hackers to insert Trojans, viruses or advertisements.

The engineering difficulty of upgrading the http whole site to the https encrypted transmission protocol is more difficult than imagined, and this master is going to solve this problem, and the famous programmer community StackOverflow finds it difficult, let alone others.

He uses the method of cloud services, as long as the server and visitors use his service to mediate, you can convert http to https, which is a good transition for websites that can't wait to launch https, and it is a gospel for small and medium-sized websites with insufficient technical strength.

Relying on this cloud service, this master made enough money and eyeballs all of a sudden, and the happiest thing is Juchen, there are people who use PCC to do this great cause, it is really unexpected.

Soon after this great surprise, PCC really received great attention from the industry, and the most sincere of them was the software outsourcing giant Accenture, which proposed to buy PCC with a full $10 billion stake, which scared Juchen.

He was quite excited in his heart, he was a penniless not long ago, beaten by his peers who delivered food and had no choice, and now he is worth more than 10 billion US dollars, ranking among the world's top richest people, and he himself is afraid of the speed of this comet-like rise.

But he is still unmoved, 10 billion US dollars is not fundamentally different from the new energy company he controls "Fox Tail Energy" + PCC's last valuation of about 3 billion US dollars, why give up the great cause of liberating code farmers and livestock that he has worked so hard to create?

In order to reject Accenture, he proposed that the purchase price should be at least the other party's annual turnover, that is, $35 billion. He felt that it was impossible for the other party to agree, so he put the matter down.

As Professor Ju's fame grew, heavyweight chemists joined the company, enabling the company to make perfectly filtered cigarettes that were as large as regular cigarettes, and the FDA laboratory that applied last time confirmed that 43 carcinogens in cigarettes had indeed been filtered out by FC101.

Although the FDA did not say that FC101 is really good for health, it has also caused the huge FC101 sales to skyrocket, and it is conceivable how the filter smoke with the perfect shape will be sought after.

BAT is enjoying success teaching his contemporaries with Juchen, but they may be cultivating a formidable adversary.

Not only does the filter cigarette have great potential, but even the sales of the unknown brands of the original cigarette factory have also risen, and it seems that they have properly gotten rid of the loss-making state, and the workers of the cigarette factory are all smiling, except for those who can't learn to use mobile phones to grab orders.

Taking advantage of the cash in hand, Juchen spent $100 million to acquire a medium-sized chemical plant in China, which will be used to produce those adsorbents, catalysts, activators and other products needed to filter smoke.

BAT's Vanessa seems to have a special relationship with Juchen, and I don't know why, she has her eyes on Juchen's project again, testing how much Juchen is willing to sell Fürth Snow Company. Of course, this can't be sold to BAT, because BAT is a traditional tobacco company, they have mastered the filtration technology, and it is likely that the motivation to promote it is insufficient, which is contrary to the jury's expectations of Juchen, and the compensation of 56 million is also an expectation.

Why did tobacco companies make money for so many years and never thought of removing the 43 compounds that had been found to cause cancer? You must know that not only do so many relatives smoke in Juchen, but he also smokes a lot of second-hand smoke himself.

Fame is good, and a number of tertiary hospitals in cooperation with the sheep head selling dog meat hadron treatment accelerator project has been approved, the main structure of the accelerator is being built around the tobacco factory, there is no research in this regard, just see how the project progresses.

But the accident happened, and the tobacco factory workers, with a strong fear of the accelerator, organized against the project.

In order to stabilize the overall situation, the relevant departments stopped the project, which made Juchen feel a strong sense of frustration.

Sure enough, no matter how successful you are, sometimes it's a good thing to think about Zhuangzi and Shakyamuni, you can't control the environment, you can only be a survivor of the environment.

The diamond accelerator will fight again, and Ju Chen's interest will shift to designing the winged bird, the solar-powered drone program.

Now Juchen is very experienced in solar energy projects, and he knows from the beginning that night and weather are the biggest enemies of solar drones.

Unable to think of a feasible way, he shifted his interest again and shifted to micro rockets, he hoped that a rocket the size of a quadcopter could also achieve a rocket recovery function similar to SpaceX, and he felt that this thing was particularly interesting, and he wanted to know how SpaceX did it.

In keeping with a clean energy future, his small rocket engine is fueled by ethanol.

Ivanka's assessment of his move was: You really want to go to Mars.

At that time, Elon Musk only made more than $100 million and wanted to go to Mars, and now Juchen has this idea, which is not too much.

From the beginning, he planned to launch a small rocket on the high seas, so as not to be affected by the relevant departments, which was very demoralizing.

If one day it succeeds, you can send the drone to an altitude of 100 kilometers and start gliding. He wanted the plane to glide for 16 hours, and at a speed of 200 kilometers per hour, it would take 3,200 kilometers to glide, so at least the plane had to have a glide ratio of 32:1, which is a 100-kilometer descent and 3,200 kilometers horizontally.

Launching a rocket into the sky at night, flying 3,200 kilometers, plus 8 hours of solar energy to continue life, and then flying 1,600 kilometers, that is a "continental drone" with a range of 4,800 kilometers, which is completely comparable to the Swiss solar-powered aircraft.

If you want to cross the Pacific Ocean, you just need to plan a route, fly 4,000 kilometers from Tokyo to Midway, then 2,000 kilometers to Hawaii, and then 4,000 kilometers to the continental United States.

It's useless, it's almost the same as selling it to terrorists as an intercontinental bomblet.

But it can show how advanced the technology of the winged bird is, and sometimes, it is also a kind of happiness and joy.

It is understood that the V2 rocket designed by von Braun of Nazi Germany is a fuel design mixed with 75% ethanol and liquid oxygen, which makes Juchen very interested in V2.

In order to make the combustion more violent, the V2 used a steam fuel pump to boost the pressure, which was the most difficult part at the time, and Juchen did not need such a high thrust, so this part could be omitted for the time being.

Moreover, the kinetic energy of the fuel pump used in the V2 at that time came from the liquid hydrogen peroxide, which is also the oxidant that Juchen fancies, and in the high altitude where the air is thin, the oxygen is not enough, so it must bring its own oxidant. Liquid oxygen is very dangerous and not suitable for drones, and it is safer to use hydrogen peroxide.

Ethanol and hydrogen peroxide are both relatively safe and easy-to-store liquids, making them good choices for amateur rocket enthusiasts.

Juchen didn't think about competing with Blue Origin, SpaceX and other bigwigs at this time, they were serious about space technology, and Juchen was here to play tickets. He just thought that the recyclable rocket was particularly interesting, because it looked like a cylinder, and how much technology it would take to make a pillar return to the launch site.

At the moment, the United States is ushering in the best time to start a space business, because a large number of companies provide parts armed to wisdom teeth, as long as you have an idea, nothing cannot be bought, so SpaceX can accomplish the great feat of heavyweight recyclable rockets.

Of course, SpaceX chooses to manufacture 85% of its own components, because the biggest problem in this industry is "few users", high unit prices can survive, relying on independent production of most components, SpaceX has achieved the Boeing Loma Launch Alliance's $400 million unit price to $80 million, not counting the benefits of recycling, this aspect is still in the experimental stage.

Ju Chen's play ticket is for mini rockets, and the parts are also made by themselves, but they can be crowdsourced, and it is not a serious project anyway, and all experts in related fields can grab orders, mainly using additive manufacturing to produce.

Additive manufacturing is the opposite of CNC machine cutting, which is a little bit of paste from powdered materials into the desired shape, and the performance is not comparable to subtractive manufacturing, but it is extremely fast, suitable for small amateur manufacturing and R&D prototypes.

Juchen is not an expert in this area, he needs to hire a project manager, an industry veteran, in order to convince the veteran to join, he needs to explain the future of his project, and he has to fool.

He flickered: "My little rocket will launch a miniature air communication base station in the future, because it can hover in the sky for 24 hours, launch to an altitude of 100 kilometers, and then circle and descend in the form of an equiangular spiral, supplemented by solar energy." It is possible to continuously provide communication services to special areas, such as those affected by earthquakes, once a day. ”

Expert: "But the mainstream research direction is kerosene + hydrogen peroxide, and the energy density of kerosene is much higher, which should be 1.5 times that of ethanol." ”

Ju Chen: "It doesn't matter, we are not engaged in real rockets, ethanol can be produced through biology, I think it represents the direction of future energy, just use ethanol, no toxicity, the taste is not bad, our small project is very easy to store, otherwise we use nitrous oxide, liquid oxygen and other special oxidants, instead of using liquid dihydrogen peroxide." ”

The expert was very unconvinced, however, the salary given by the local tyrant boss was high, and he could only adopt the basic setting of the V2 rocket, and von Braun used ethanol and hydrogen peroxide back then, although hydrogen peroxide is not used as the main propellant oxidant.