Science and Technology Review

From China’s Zhejiang University, a research team found that rice at the Great Wall 1,500 years ago, but when an important role, is a very good “nutrition” material. They also found that ancient construction workers, the sticky rice, and hydrated lime and limestone mixture, made of paste, then fill the gap in the masonry.

This ultra-high strength material used to build the Great Wall, while it is also used in the seismic tombs, pagodas and oriental city wall, which still exists.

The group leader Professor Zhang Bingjian said: “The ancient mortar is a mixture of organic and inorganic material, inorganic component is calcium carbonate, organic ingredients is gum starch, glue and plaster mixing glutinous rice starch is generated when. Moreover, plastic starch played the role of anti-agent: calcium carbonate crystal growth under control, the formation of compact microstructure, and this is not the body of this high tolerance of organic causes. ”

Professor Zhang believes that this glutinous rice with a mixture of lime mortar, a more stable physical properties, higher strength of the mechanical strength, high compatibility by Shi Hai, so you can use in a variety of ancient buildings.

Astronomers recently announced that they found the sun and the solar system, including of course the Earth is facing a huge hot interstellar gas clouds around. Meet the real time will occur in the next 100 years, this phenomenon also means that global warming will continue. Astronomers said that the encounter has not yet been calculated the degree of damage on the Earth, but astronomers believe the earth is almost not suffer any negative impact, but the space astronauts are exposed to radiation would increase.

This is the NASA Voyager 1 and 2 spacecraft first record of the solar system move somewhere (may be vice versa). Voyager probes by detecting the solar wind, the solar wind is the penetration of charged particles in the interplanetary flow, determine the interstellar gas clouds blanket only one uniform direction. This direction is subject to certain forces to the shape of the deformed.

Voyager spacecraft data show that the phenomenon of asymmetric shocks, the last time takes about 14 to 15 billion years to stay away from the sun, then solar wind particles from interstellar space crashed into the counterpart of. This will lead to an explosion of radiation, and unevenly distributed. Astrophysicist, said hot interstellar gas clouds may explain the emergence of the phenomenon.

Satellite also discovered a secret, when it detects the existence of a “ribbon” – like the edge of the solar system structure, the fine particles. Based on Voyager and Star Border probe the “ribbon” can promote the development of new theories.

Astronomers said they need to take a long time to study the solar system and interstellar gas clouds this group encounters the root cause, and believe you can find a better answer.

Wireless technology can often make our offices more efficient. Now, scientists are trying to computers via wireless technology to improve internal efficiency. Now, the wireless transmission is the most effective data transmission.

Designers hope the development of micro-chip, so a lot of data into the smaller device. However, transmission of data through the metal, often getting interference, thus reducing transmission efficiency. The ultimate way to solve this problem is the use of wireless transmission.

The current designer, hoping to use waveguide transmission, but this approach can only be achieved within close range. Scientists Ngjela and Aru proposed use of air. But will the loss of data, but compared to other methods has been greatly enhanced.

Their calculations show that the silver antenna, each 120 nanometers high, 20 nm wide, a distance of 17 mm, the efficiency is much higher than that of solid connectors. Envisage the future of all wireless connections are replaced with connections inside the computer no longer have to use a wireless connection to computer when you want and more thin, the more thin, more convenient, the more convenient you want.

According to the British “Daily Telegraph” reported that the Spanish scientists recently declared that the world’s first cloned bull was born in May 19.

Animal genetics expert 17 people led by research group, said cloned calf, “goth” weighing about 24 kg, and its gene from a robust long with sharp bull horns “Wa Xituo “” surrogate mother “is a cow.

Torrent said the study, costing 28,000 euros (about 240,000 yuan), and his research team spent 3 years to find the right way, in the process of cloning a decision to retain the genetic quality of Bull Excellent they wanted “goth” to inherit “Wa Xituo” All good genes.

Since Dolly the cloned sheep in 1996 after the launch, there have been cats, bulls, cows and mules and other animals have been cloned. Cloning controversy caused, in addition to ethics, the opponents also said the quality of animal life may be impaired, such as Dolly growth too fast, only half survived for 6 years.

According to “Daily Mail” reported on May 20, 1937, the German Hindenburg disaster ended the golden age of airships. But 70 years later, the world’s largest inflatable spacecraft from the ground a successful flight this week to restart the large spacecraft close contact with the sky a new chapter.

The spacecraft, ground-breaking ship was named “Brett 580″ green technology companies from the electronics R & D, long 235 feet (71.6 meters) wide and 65 feet (19.8 meters), is the world’s largest airship, which can carry 2000 lbs (907 kg) payload, rose to 20,000 feet (6096 meters) in height. The airship in the United States this week, Alabama Gerui Te stadium off the ground floating, inflatable process just a little over 6 hours. Brett museum is able to accommodate such a large body of the spacecraft a few of the venues.

Cost of 5.5 million pounds aboard the airship, you can remote control can also be manipulated by a crew member. Electronic green technology company plans to build a team for the spacecraft lease, the monthly rent for each of spaceships range from 200,000 to 550,000 pounds between. Maikelaosen CEO, said the spacecraft’s speed is very slow, so it is suitable for tourist use, while space is large enough to carry cargo, but in the absence of control can be achieved under its flight altitude 20,000 feet (6096 meters) , and hence is able to meet the needs of different groups.

Although the ship a top speed of only 80 miles / hour (128.8 km / h), but can take off and land vertically and also be able to hover in one area for a week, and this is generally an aircraft or satellites can not do. Thus, the spacecraft can be used to closely monitor the Gulf of Mexico oil spill or the activities of Somali pirates, or can be as close to space satellites, launch broadcast communications, missile defense warning, weather monitoring and geophysical observations. It is reported that Brett will conduct the first flight test this summer.

According to Singapore’s “Lianhe Zaobao,” 19, UN experts say the world’s fish resources and significantly reduce, if not substantially reduce the fishing vessels, while the establishment of protected areas, many fish, humans are likely to face in 2050, no fish can be caught in the nightmare .

According to UN report, 30% of global fish stocks severely damaged, these species had the potential growth is less than 10%; now only a quarter of the global number of species fairly qualified, but most of them are cheap lack of demand for fish. If the current situation continues, after 40 years mankind will no longer commercial fishing.

United Nations Environment Programme (UNEP) director Steiner pointed out that government subsidies in many countries by the stimulus, the global number of fishing vessels and 50% higher than the actual needs of 60%. Fish resources in fewer and fewer cases, but more and more fishing vessels.

Later in the year, UNEP will publish “Green Economy Report”, the first draft of the report was open to inspection the day before yesterday. In addition to reducing the number of fishing vessels, the report said, the establishment of fish protection areas, so that female fish can grow to maximum size, thereby greatly increasing the reproductive capacity of fish to avoid a crisis is a major way.

For the fish resources crisis, Steiner said: “Our governments and institutions are fully capable of changing the status quo, we find that many countries understand the problem. I think, now nearly 30 countries in direct cooperation with us. In addition, There are a lot of countries are revised policy on green economy. “

According to the U.S. “Connection” magazine reported that the Swiss by Eric Raymond plans to drive a solar-powered aircraft across Europe, and hoped to prove so “solar-powered aircraft” is not an oxymoron, but a viable air travel.

It is absolutely beyond imagination

Raymond’s solar-powered aircraft known as “chasing rizhe II,” will be staged over 6 countries in Europe, eight journey, driving through Europe manned solar-powered aircraft was the first time in history. It is reported that this aircraft, and environment-friendly aircraft by the Solar Flight’s development, aims to tap the power planes in the air travel of the potential, the efficiency of its design may also allow the aircraft benefit from the use of fossil fuels.

Zhezhi the Swiss member of the group Eric Lentz-Gauthier In an interview with “Connection” magazine Web site (Wired.com) an interview, said: “If we can encourage people to re-examine the transport and mode of travel – help them to envisage cleaner, destructive while bringing joy to experience a lower mode of transport – we have it opens the door to success. ”

“Chase rizhe II,” main science, progress and the green card, in the air, it is capable of “quiet” word do? With lyteze – Gotia as saying that “those who pursue Japanese II,” the performance of It is absolutely beyond imagination. He said: “In the quiet take-off and climb to several thousand feet of altitude, flight stabilize and begin to slow down. With the sun behind him, your attention is only focused on the voltage meter on the eyes see the figure was only up, not down. At this moment, everything is in your hands. It is played with a brand-new aircraft between the game, it will change everything. ”

Some people say never, do you, but sitting in a sport-747 cells and photovoltaic Ikegami. While the battery weight and size of small aircraft is still almost all the constraints, but the electric aircraft has been in the past on the road. Similar Pipistrel and Electric Aircraft such as start-up companies have developed a viable electric aircraft; Boeing is also able to test hydrogen fuel cell for aircraft; a joint venture company called Solar Impulse is scheduled later in 2009 tested a solar-powered aircraft.

Two-speed options

Solar Flight staff said that they developed “chasing rizhe II,” and similar aircraft to how to maximize efficiency and minimize the weight to bring some enlightenment to those of fossil fuels inspiration will allow the aircraft to become cleaner and greener. In addition, they also encourage people to consider a new way forward.

“Chase rizhe II,” weighs only 292 pounds (about 132 kilograms) – full load under the weight of 506 pounds (about 229 kilograms) – roughly equivalent to an ordinary motorcycle. Its fuselage length 23 feet (about 7 meters), a wingspan of 17 feet (about 5 meters). Wing is equipped with four lithium-polymer battery, takeoff and climb is responsible for an 8-horsepower engine. Once you reach about 3,000 feet (914 meters) and cruising altitude, “DAY II, who” will use solar energy to maintain altitude. While the battery storage capacity in just 15 minutes will be depleted, but Raymond said that the battery charge time only 30 to 45 minutes.

“Chase rizhe II,” by means of solar energy can reach 40 miles per hour (about 64 km per hour), by means of lithium polymer batteries can double the speed, the speed enough to make drivers feel the fun of flying. Compared with the conventional aircraft, the more slowly, thus allowing the driver to open canopy. Raymond said: “You’ll love the feeling of open canopy. At this moment, there is no need to see through the plastic, you can feel the wind blowing in the ear.”

Air Show as the focus of

Since the first flight since 2002, “DAY II, who” has been staged 60 times more than the flight time to reach the one-hour air journey. Solar Flight company said this achievement than any other solar-powered aircraft. “Chasing Japanese who II,” is “chasing Japanese who I,” the improved version, which is single-handedly designed by Raymond in 1989, the first intimate contact with the blue sky. In 1990, Raymond driving “chasing Japanese who I,” reached 16,000 feet (about 4876 meters) in altitude. It is reported that the air journey across the United States is divided into 21 stations, the flight time to reach 121 hours.

Raymond said: ” ‘DAY by I,’ very limited power system, you must be able to find and use rising air currents. In most flight time, it is merely an ultra-light glider, that shut down the engine and the thruster. “In contrast, driving” chasing rizhe II, “is a completely different experience – the plane last week in Germany at the Friedrichshafen exhibition become the focus of general aviation. “Chase rizhe II,” will be held on the 6th start flying trip to Europe during which he will in Germany, Switzerland, Austria, Hungary, Slovenia, Italy, France and Spain docked. If all goes according to plan, it will be Solar Flight Following 1990′s “who-I catch on,” the 21 stations across the United States the longest trip air travel since the trip.

Be improved in many aspects

And “chasing Japanese who I,” compared to “chase rizhe II,” in many ways be improved, including more efficient tail design, a complete set of navigation and glide complementary equipment and lithium polymer batteries to replace nickel – cadmium batteries. A larger wing meant that solar cells have a greater surface area. This time, the solar cells installed in the wing, rather than inside the top of the result is: good weather, the aircraft can fly has been relying on solar energy. In addition, the “chase rizhe II,” but also the engine size of more than “chasing Japanese who I,” horsepower from 2.5 to upgrade to 8.

Raymond said: “I prefer to use lithium batteries to climb to altitude, such as 10,000 feet (about 3048 meters), followed by the use of solar energy to maintain level flight, often in the clouds above. In the air temperature is low enough height, e and engine cooling equipment in good condition. At this time the sun is very ample and bright, the air is more stable, I need only to cruise. ‘to recover rizhe II,’ the whole power system more robust, I can rest assured that the use of the entire flight process , as is an open one, like an ordinary plane. ”

Learn from experiences of their predecessors to improve the efficiency of the aircraft

Most of the work from the perspective of Raymond Gunther Rochelt the late inspiration, which designs and manufactures a pedal plane Musculair 1, and in 1984 broke the aircraft speed record of human, then to reach 22 miles per hour (about 35 per hour km). Luo Chete of Musculair 1 in terms of speed and efficiency, to Raymond’s performance left a deep impression in the under the guidance of his predecessors, he determined to take all possible measures to improve the efficiency of the aircraft – all experiences are integrated into “chasing rizhe No. II. ”

Raymond said: “This aircraft is an integral part of each can be responsible for their own things to optimize, that is, the structure and aerodynamics.” Raymond and lyteze – Gotia admit, electric aircraft the popularity of devices still have a long way to go, but they believe the door has been opened. Lyteze – Gotia, said: “At present, the market has emerged several pure electric glider took off on their own. I believe the future will have more similar products off the assembly line.”

Evidence-based medicine in recent years, the emerging world of the most authoritative study of drug treatment method, which is internationally recognized method of evaluation of drug efficacy, the results of objective, impartial and authoritative, so based on the most worthy of drugs derived from doctors and patients trust.

Recently, the Chinese Medical knowing electrophysiology and pacing parameters branch of Traditional Chinese Medicine published Matsukai capsule antiarrhythmic evidence-based medicine study results show that the parameters Song Yang Xin Capsule due to coronary heart disease, myocarditis, rheumatic heart disease, high-heart disease such as heart disease caused by premature ventricular contractions was significantly better than slow rhythm, treatment, due to overwork, alcoholism, emotional function of premature beats and other effects caused by significant effects of treatment of paroxysmal atrial fibrillation with propafenone quite. Participation Song Yang Xin Capsule Another prominent feature is currently no effective drug treatment slow arrhythmias such as bradycardia, conduction block, slow-quick syndrome, also has good efficacy, the results of this study has been slow to fill arrhythmia drug treatment gap.

Why is Participation Song Yang Xin Capsule treatment of both tachyarrhythmias, such as all kinds of premature beats, atrial fibrillation, sinus tachycardia, but also treatment of arrhythmia? In evidence-based medical research, as well as parameters Song Yang Xin Capsule pharmacological research process, Experts are given the answer. The occurrence of tachyarrhythmias, mainly cardiac multi-ion channel function and cardiac autonomic nerve function disorder occurred; slow the occurrence of arrhythmia was mainly cardiac pacemaker current, cardiac conduction function and cardiac autonomic nerve function problems. Participation Song Yang Xin Capsule with integrated features of the regulatory role, not only can block the heart of the multi-ion channels, regulate cardiac autonomic nerves, treatment of tachyarrhythmias, while it can also enhance the cardiac pacemaker current, to improve the function of cardiac conduction Therefore, the treatment can slow arrhythmia and cardiac autonomic nerve function by regulating and improving myocardial blood supply, but also can eliminate a variety of arrhythmias caused by insomnia, palpitation, shortness of breath, fatigue and other symptoms. Was fast and slow is the rule governing participation Song Yang Xin Capsule’s greatest advantage, and in the process of evidence-based medical research did not find the heart of adverse reactions. At present treatment of arrhythmia’s the biggest problem is drugs, side effects, the effective dose of many drugs and cause toxicity of the dose is very close to losing control with inadequate doses of arrhythmia, with the full dose may lead to more serious arrhythmias Chinese medicine research and development success of anti-arrhythmic drugs is expected to change this situation.

Despite the many varieties of Chinese medicine in China, but rarely carry out evidence-based medical research. Participation Song Yang Xin Capsule is carried out so far the only evidence-based medicine of China’s anti-arrhythmia Chinese medicine clinical research, the study throughout the country, 36 large-scale comprehensive start in the top three hospitals, including Beijing Fu Wai Cardiovascular Hospital, the capital Medical University Chaoyang Hospital, Nanjing Medical University First Affiliated Hospital, Shandong University Qilu Hospital, the participation of more than 500 medical experts to participate in a variety of arrhythmias in patients with medication up to 1476. Participation Song Yang Xin Capsule with international standards such evidence-based medical research to clinical research of TCM in China played a positive demonstration effect on the promotion of TCM modernization and internationalization of great significance.

Evidence-based Medicine: Evidence-based medicine is evidence-based medicine, in recent years the rise in the world’s most authoritative of a new medical research methods. It has a wide range of uses, variety of this, double-blind experiment to test the efficacy of drugs and so on. Large-scale, that is evidence-based medical research and income from a large number of cases, and then were divided into treatment group and control group, these patients suffer from the disease are the same, the treatment group using the same kind of medication, the control group used another medication, Finally compare the efficacy of two drugs. Variety of this is the case in the study of income, even though the illness the same, but everyone’s own different conditions, such as age difference, physical difference, and only this can guarantee a variety of drugs under study apply to all; double-blind experiment is that doctors and patients do not know what kind of drug use, drug use and press the number after the statistical effect, so to maximize the efficacy of the drug to ensure objectivity. Thus, evidence-based medical research is the most scientific evaluation of drug efficacy, the most fair manner, thus the true worth of the drug in patients based on trust.

Health is the cornerstone of life, physical survival and life of capital, modern city people how to make the body increase the vitality overdraft? Life, the number of health care errors? Seasons climate change, how do we health? Attention to health, 863 health care network channels, concerned about the health and concerned about their future, every day, fitness, often health care, in order to go to the hospital less for their own health banks to increase their savings.

With regard to the dimensions of space has always been different opinions, generally considered to be four-dimensional (including time one-dimensional), it was also said to be five-dimensional, eight-dimensional, 11-dimensional, or even 27-dimensional. But scholars WANG Hong-China talks on Beijing Normal University recently pointed out that space is three-dimensional, time is also a three-dimensional, space-time total is six-dimensional. He also inferred from the theory, the speed of light is not constant, should be 0 from the expansion of the universe at the beginning of a gradual acceleration to the present 300,000 kilometers / second, and is still increasing steadily.

WANG Hong-China talks in Beijing Normal University’s main elements are as follows:

For nearly a century, even though physics has made rapid development, but the most essential questions about the universe – time and space problems, is still stagnant, still fails to account for time, what is the relationship between space and time. At this point, I would like to express some of their views, hoping to reveal to all of us.

First of all, I think space is the existence of quality container, time is the existence of energy trajectory. Space and time are two major dimensions of the universe, can not leave things exist, those who think that “time has nothing to do all of the people and things, independent existence, always exist” argument is wrong. There is no quality there is no space, no energy would not have been time for a good understanding of the former, the latter sentence is in fact very simple, there must be energy-driven clocks in order to move, if the energy of the universe, all but disappeared, all the clocks will be slowed down until the stop, the universe of time also stagnation, disappeared. Well, this is not contradictory with the theory of relativity out? The theory of relativity that when the velocity of an object close to the speed of light, the object will rapidly slow down around the time; when the velocity of an object is equal to the speed of light, time stops. I think that there is no contradiction, but the theory of relativity elaborated still far from complete, it detects the time slow down, the actual is the object of the “grain of time” slowing down is not it all the time. So, what is all the time?

Secondly, I think the quality of an object is a three-dimensional, the energy is also a three-dimensional. Previously, it was mostly the time as a dimension of space, called the fourth dimension, it now appears is obviously wrong, just as energy can not be the same as quality. Three-dimensional space can only be three-dimensional, there is no one-dimensional, two-dimensional, there is no four-dimensional, five-dimensional, not to mention the legendary 11-dimensional and 27-dimensional. Now our task is to decompose the time dimension, that is, the dimension of the energy trajectory. Then, the energy of the track is a kiwi then? Particles start from the study. We know that long ago physicists discovered that particles have wave-particle duality of movement. Subsequently, it was found that the physical particles also have such features, even suggested that all objects have wave-particle duality hypothesis. It is clear that wave-particle double track is three-dimensional movement. Which is a one-dimensional particle movement, volatility is a two-dimensional trajectory (wavelength and frequency). If “all objects have wave-particle duality,” the hypothesis can not be established, it does not matter, this way, relative to different substances, time can be divided into one-dimensional (objects), two-dimensional (field), three-dimensional (particles ) three different situations. Corresponds to the total number of space-time dimension is four-dimensional, five-dimensional, six-dimensional (I think this is unlikely).

Here we know that, and the previously mentioned “all time” that is, wave, particle three-dimensional time, but we now measure time with clocks and watches are one-dimensional particle nature of time, do not include wave nature of time. I think that the object wave, particle like a counter-balance the relationship between the two, when the object speed are reduced, the tablets strong waves of the weak; when the object speed increases, the particle nature of weak and strong waves. When the object in order to advance the speed of light, the particles of the weak as to be difficult to detect, so it’s time for granulocyte almost stopped. However, it is time for the wave nature of the increased. Overall, its time has not slowed down, but we have not yet found a tool for measuring waves of time only.

Thirdly, I think relative time subject to absolute time, absolute time from the total energy of the universe, decisions, and the total energy of the universe decided by the speed of light. Prior to this, because people do not find time to slow down the reasons for moving objects, we think that time will go beyond a partial or back of each other. Fact, slow moving objects, changing only the particle nature of time, such a change as you watch further than others, like watches and clocks slow commonplace. Because the universe is an energy can be a free exchange of open space, so time will not slow down or speed up locally. Everything in the universe must be subject to the same time – absolute time can not be exceeded or reversed. Absolute time from the decision of the total energy of the universe. So, the total energy of the universe, then what is associated with it? The speed of light! Is because the speed of light can not be exceeded, so the quality and energy of the universe there two kinds of material form. If the speed of light infinite, it will not appear Red Dust in the world, only “empty” the energy of the crowd. I think that the macro-material quality is the speed of light accumulation.

Fourthly, I think the speed of light will continue to increase over time. Previously, we have always maintained that the speed of light is everlasting, and is based on relative movement of the light source and a static light source, each observer measured the speed are the same. But this can only explain the changes in the speed of light and space has nothing to do, not that it has nothing to do with the time change. The beginning of the universe is expanding, the surface of all suspended solids, including light have been absorbed. There is no quality, and there is no surplus, loose space. There is no surplus, of course, also loose the space the big bang the universe could not have happened. In other words, the universe may just be slow and inflation comes, can not be a sudden explosion came. Then, the slow expansion is how it? From the light guide! Just universe, the pioneers of the new space, it is the universe to reach the marginal marginal. The slow expansion of the universe, but also means that the speed of light is gradually beginning to accelerate from 0. Then, the acceleration of light is not constant? Now does not seem to be. Changes in the speed of light is likely to curve consistent with the expansion of the universe, began to accelerate from 0, there was a boom phase, now have entered a phase of slow increase. So the universe, the horizon problem resolved.

With the speed of light increases, the increase in the total energy of the universe, time will be a corresponding increase in the rate, so “the Chinese side on the 7th hole, the world’s thousands of years” was not established, but “the last party on the 7th, and now thousands of years,” it is entirely possible The.

In addition, there are many phenomena of the universe to accelerate the speed of light changes to support the above inference, but due to limited availability, I can not experiment confirmed that the hypothesis can only be considered. But what is certain is that if this hypothesis holds true, then physics, cosmology will be a lot of difficult emergence of a new turn for the better.