News on China's scientific and technological development.

Anlsvrthng

Captain
Registered Member
I was only pointing out the Chinese intention of manned lunar landing program therefor their need for a rocket of this size, not debating its worthiness and risks which is another subject.

Near earth asteroid mining is by for a Sci-Fi, far more challenging than a manned lunar landing, the cost will be far higher than gain.:) As of the super space station fortress, I believe that is just a joke of you, not serous.;)
Makes more sense than landing on the moon/mars.

They need radiation shielding even for a moon fly-around , and the cheapest way to get that is to use rock from near earth asteroids.

Actually, the near ear asteroid mining is easier than the moon landing, the biggest issue again the lack of radiation protection.
Sadly the mining mission would spend more time out of the van allen belt.
But without that it is not possible to radiation harden a spacestation above 800 km LEO.
 

Quickie

Colonel
Makes more sense than landing on the moon/mars.

They need radiation shielding even for a moon fly-around , and the cheapest way to get that is to use rock from near earth asteroids.

Actually, the near ear asteroid mining is easier than the moon landing, the biggest issue again the lack of radiation protection.
Sadly the mining mission would spend more time out of the van allen belt.
But without that it is not possible to radiation harden a spacestation above 800 km LEO.

There are stuffs too to mine on the moon.

Actually, the near ear asteroid mining is easier than the moon landing, the biggest issue again the lack of radiation protection.
Sadly the mining mission would spend more time out of the van allen belt.

Radiation is highest within the Van Allen Belt. Immediately outside of the belt, and on the surface of the moon, the spacecraft/astronauts would have to deal with cosmic rays from deep space, which is an entirely different thing from the radiation in the Van Allen Belt.
 

PiSigma

"the engineer"
Via Haidian How can you compete China graduate 9X more STEM than US
China Is Building The World's Largest Innovation Economy
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China is on its way to becoming the largest economy in the world.

In just one generation, something like 300 million+ people went from rural subsistence farming to urban industrial and technology jobs.
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may be the most consequential economic event in centuries.

Yet this story is largely ignored in the U.S. and in much of Europe. We hear about a few projects here and there, but we don’t understand the extent.

Venture Capital Investment
On an export dollar per population, China out-exports the U.S. at $2,263 billion dollars. Still, the U.S. is second, Germany comes in third at $1,448 billion, and the Netherlands with a population of only 17 million people exports at $652 billion.

Beijing sees this same data and realizes its leadership is not guaranteed. China needs to develop its own technology and through a combination of government edicts and profit-seeking,
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.

Beijing is forcing money into venture capital at an astonishing pace.

Peter Diamandis toted up
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last month.

By end of 2017, 3,418 Chinese VC funds were launched within the year, raising a combined $243 billion USD or 1.61 trillion RMB.

Of the $154 billion worth of VC invested in 2017, 40 percent came from Asian (primarily Chinese) VCs. America’s share? Only 4 percentage points higher at 44 percent.

In the first three quarters of 2017, 493 state-backed funds were founded with a capital size of 114 billion USD (756.8 billion RMB).

And as of two years earlier, Chinese VC coffers had surpassed a remarkable $336.4 billion USD.

In a great push to scoop up intellectual property and drive growth in key tech sectors, China’s VC scene is booming.

As of 2016, China’s Venture Capital investment had roughly caught up to U.S. levels. Now, it is probably ahead.

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Peter Diamandis says Chinese VC firms are targeting three segments: robotics, driverless vehicles, and biotechnology.

Silicon Valley on Steroids
There’s yet one more profound development in China underway.

Financial Times recently
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Beijing plans to integrate former Western colonies Hong Kong and Macau with other nearby urban areas including Shenzhen and Guangzhou into this “Greater Bay Area.”

Already, it accounts for 12% of Chinese GDP and 37% of the country’s exports. Beijing wants the GBA to lead the nation’s innovation and economic growth.

To that end, the government is pouring infrastructure investment into the region, including a 22-mile bridge connecting Hong Kong and Macau (not cheap!) with the mainland and a new $11 billion rail link for Hong Kong. It also plans to eliminate some of the bureaucratic barriers that presently slow down commerce.

The size of this region is hard to comprehend. With nearly 70 million people and $1.5 trillion GDP, it is economically bigger than Australia or Mexico. Guangdong (the mainland China part) alone exported $670 billion in goods last year. Three of the world’s ten busiest container ports are in the region. It will be Silicon Valley on steroids.

For that matter, it could be the U.S. on steroids, at least geographically.

Growing Scientific Contribution
China has produced more scientists and engineers for decades than the West has combined. As a graphic illustration, here are the countries with the most STEM graduates:

https%3A%2F%2Fblogs-images.forbes.com%2Fjohnmauldin%2Ffiles%2F2018%2F09%2FChart_2_20180919_ME_OP_JM.jpg


However, many of us had suspicions about the quality of the universities and their degrees. They couldn’t be as good as ours, could they? It turns out they are comparable and possibly even better in some areas.

A recent
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found that in 2016, roughly 24% of scientific papers had an author with a Chinese name or address. If you include Chinese-language papers, it jumps to 37%.

Looking at it another way, China has 15% of global GDP but produces more than a third of the scientific papers. It seems those university degrees are beginning to pay off in actual research.

China Has All It Needs
New York Times best-seller Matt Ridley says human progress and prosperity make the greatest leaps when “ideas have sex with each other.” This creative process happens faster and more easily when the idea-holders share proximity.

In the U.S., Silicon Valley often serves this purpose. Along with Austin, Dallas, Boston, New York and others.

China has abundant venture capital to fund research and large numbers of researchers cranking out ideas. It needs a central place for those ideas to have frequent sex with each other.

The Chinese government is aware of this. And with massive infrastructure projects like the Greater Bay Area, China is gradually building its own innovation cluster.

Economic growth is largely a numbers game: workers times productivity. China already has both ingredients and
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.

For now, the U.S. is still ahead, but we shouldn’t be complacent. Nothing requires the global economy to keep us in the lead, and we are not doing what we should to keep it.
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Clearly the Chinese grads are superior to anything Forbes hire. For one, the maker of Forbes map can't tell the difference between Japan and New Zealand.
 

Anlsvrthng

Captain
Registered Member
There are stuffs too to mine on the moon.



Radiation is highest within the Van Allen Belt. Immediately outside of the belt, and on the surface of the moon, the spacecraft/astronauts would have to deal with cosmic rays from deep space, which is an entirely different thing from the radiation in the Van Allen Belt.

The van allen belt is extending above the geostat orbit.

And the belt contain particles from the sun, so by going beyond of it means the astronauts leaving behind the most important magnetic protection shield of earth.

Outside of the belt if will be on the path a solar flare then they will die.

Everyone forget that the sun is nothing else just a naked thermonuclear reactor, and we live in the lethal radiation zone of it.

To avoid this they need mass radiation protection.
The only way to get it is by mining asteroids.

It is not possible to get it from the moon, that has too much delta V to get up from it, and has 28 days long day.


So, if China serious about manned space exploration beyond the LEO then they have to start to work on space mining.

The moon landing otherwise is nothing else just an exercise for the television watchers to amuse them for few minutes.
 

Quickie

Colonel
.....

The only way to get it is by mining asteroids.

It is not possible to get it from the moon, that has too much delta V to get up from it, and has 28 days long day.


So, if China serious about manned space exploration beyond the LEO then they have to start to work on space mining.

The moon landing otherwise is nothing else just an exercise for the television watchers to amuse them for few minutes.


What are you talking about?

The Asteroid Belt is between the orbit of Mars and Jupiter and is more than twice the distance from the Earth to the Sun.
 
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Quickie

Colonel
More than 10000 observed Asteroids closer than Moon.
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But how feasible it is to mine them?

Most of the asteroids are very small and have very high elliptical orbits around the sun and so come around near Earth for short windows.

Near-Earth objects[
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]

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are asteroids whose orbits can bring them within about 0.3
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of the Earth. There are thousands of such objects that are easier to reach than the Moon or Mars. Their one-way delta-v budgets from LEO range upwards from 3.8 km/s (12,000 ft/s), which is less than 2/3 of the delta-v needed to reach the Moon's surface.
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But NEOs with low delta-v budgets have long
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, and the intervals between times of closest approach to the Earth (and thus most efficient missions) can be decades long.
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The delta-v required to return from Near-Earth objects is usually quite small, sometimes as low as 60 m/s (200 ft/s), with
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using Earth's atmosphere.
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However,
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are required for this, which add mass and constrain spacecraft geometry. The orbital phasing can be problematic; once rendezvous has been achieved, low delta-v return windows can be fairly far apart (more than a year, often many years), depending on the body.

In general, bodies that are much further away or closer to the sun than Earth, have more frequent windows for travel, but usually require larger delta-vs.

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Hendrik_2000

Lieutenant General
For those of you who are in Oil and Gas Industry An interesting look of China oil and Gas industry starting from scratch basically. I still remember when Nixon came to China 1974 and all the media dubbed China the Kingdom of bicycle because everybody rode a bike and private car was non existence Now China has 320 million vehicle
And at that time the propaganda extol the Iron Man from Dajing the first oil find in China
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Here is interesting story the oil found in China has high alkane resulting in plugging of engine and low octane So they have to find a way to reduce the Alkane which eventually they do after long slough
But come 1990 the environment pollution start to create problem because the oil that China import is rich in sulfur and very acidic I guess so called heavy oil(cheaper grade oil)
They have to buy technology from Conoco phillip But the catalyst and absorbent are supplied by third party China want to buy technology but they wouldn't let it. They insists on forming partnership with the foreign supplier hold the majority share say 60 to 40
China dragged on the negotiation while at the same time try to research and produced by the catalyst themselves But the have trouble and nearly abandoned the effort. But the project manager an overseas Chinese insists on keep trying Finally they succeeded in making the catalyst and abandoned the partnership to the disgust of the foreign supplier Sound familiar

 

Hendrik_2000

Lieutenant General
2nd part Development of synthetic fiber and petrochemical industry
After the civil war China face a huge task to cloth the people Back then cotton is the prime material for clothing But growing cotton for clothing reduce the acreage for food So how to find the solution

Well the solution is to develop petrochemical from scratch. But again the raw material is controlled by the foreigner and China has to pay huge sum to get it
This video show China effort to domesticate the raw material Arene for polyester

With the development of Synthetic fiver China solve the clothing demand and lay the foundation for clothing export
Now china once again need to upgrade by developing high tech clothing such as comfort as cotton but fast drying and anti wrinkle as polyester
 
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