To the AIT where the scientific performance up to make a distinction

"Pandora" is the satellite is not a planet, is indeed worth at room temperature superconducting ore to the AIT where the extraordinary reach of scientific findings call minutes movie "Harry road Gora" because it is rich in room temperature superconductors ore and suspended in the air, that being the case, why the Earth miners "in the ground-breaking" Notre Dame head?

Beijing News "new known weekly" the ' where da "is film technology milestone.

Cameron is a project of technical experts, it is said that in order to make the ' where da ", he also got the botanist, astrophysics, music professor and archaeological experts designed a respectively in Pandora's planet plant, atmospheric density as well as a third-order of mixed music. The ' where da "is a new Chameleon students art course job, but as there are many scientific content. That if a science teacher, review the job, what is it? the comment count up and earnestly, perhaps may not be able to pass the exam.

【 Big topic 】

"Pandora" is a planet?

The film ' where da "story takes place in a place called" Pandora "planet.

It is the "Centaur Alpha A star" (AlphaCentauriA) of a planet of gaseous planets "Cyclops" (Polyphemus) satellite. Pandora's star is a very warm climate of the planet, but its quality than the Earth is small, so the above gravity also small creature can grow very large. It's air toxic, humans can't breathe.

It is difficult to calculate orbit

In reality, the existence of "Centaur Alpha A star".

Its distance from Earth 4.37 light years, it is subject to the Sun, the stars from the Earth recently. Why is it called "A star", the original Centaur Alpha star is a three star system, a 3 star mutual revolving, and as a whole movement around the Galactic Center.

January 2008, an astronomer Fischer (DebraFischer) team started by Chile's i

nvestigation of m-diameter telescope CTIO1.5 Centaur Alpha star, the study will last five years. Her team wanted to pass this star has a pattern of light variation to infer wrapping it around the operation of the celestial bodies. This technique has been used to infer the Centaur Alpha star like Jupiter so big planets rotate around it. Fischer said: "there is likely to exist like Earth-like planets. ”

Because with a combination of three stars, planetary movement may be very strange.

Samsung star and B in A star's motion close to around a common center of rotation, the distance between the two in 11 astronomical units and between 36 astronomical units (the astronomical unit is between the Earth and the Sun), so imagine how their planetary movement really is a lot less. Centaur third star is a red dwarf star, called the "neighbouring Star" and A, B, consisting of two star systems are revolving, distance A, B, two star on their planet. If A star and B star system is really a planet, then after calculation, if they and one of the star's distance of more than 2 astronomical units, then the role of mutual attraction, the planet may be "dumped" out of the system fell into the vast universe.

Solar System-satellite undiscovered

"Good news" is that after calculation, this system or the existence of life "Golden zone", where not too cold nor too hot, you can have a lot of liquid water to exist.

A bigger star than the Sun, in 1.2 astronomical unit is the "Golden zone"; and B star with 90% of the Sun, in 0.75 astronomical unit is the "Golden zone." But the two stars of similar chemical composition and the Sun, planets, elements may be similar to the Earth, it is possible to form early Earth above the kind of "original life soup." Now there is still no definitive conclusions say Centaur Alpha star is not Earth-size planets, but Fischer said that 2012 will be able to come around.

Movie planets "Cyclops"

is written by a fictional, its satellite is an illusion. In fact, there is no outer solar system, astronomers found satellite prediction, but they will found sooner. Sagittarius Alfa star is a place worth a visit. In fact, Webb telescope may soon be able to see the solar system, "the Moon", and can detect whether they have oxygen, steam from the Earth's life forms the basic elements required.

Life is very difficult

Although the "Pandora" theoretically possible, but vital to the survival or above.

Although these gases planetary satellites can be sufficient illumination of stars, but their "boss" of the planet could have on their previous life a big threat. It runs through the planet's magnetic poles, sure to be many ion bombardment. Because of the huge attraction of planets, which may give rise to a large tidal and volcanic eruptions. Think about it, like the 2012 "such a big scene there every year, so that the land-based biological how to live?

There is a problem, Pandora's star's gravity than Earth, its rarefied air should be higher than the Earth, then the air is how to provide great biological respiratory needs, how can allowing huge dragon vacated? only one possible, Pandora's star of the main components of air than the Earth.

Producer said, this star's atmosphere consists of methane, ammonia and chlorine. These three gases only chlorine, chlorine than air toxic, it itself and the combination of water vapor in the air, will form a large number of hydrochloric acid. It seems that Pandora's star reallyHorrible enough.

【 Small subject 】

1 earth people to pick what mine?

In the ' where da, Earth human exploitation "Unobtanium" and Neville people among themselves.

This is fiction frequently occurring words for one and a half joking. It's difficult to get by "" (unobtainable) and represents the elements of the suffix "ium" together. It is used torefer to room temperature superconductors. In the ' where da, scientists put a piece of ore in a Unobtanium magnet, it suspended in the air.

About superconductors, magnetic phenomena from 1911.

This year at the end of the forest in the Netherlands scientists card — Agnes with liquid helium cooling mercury, when the temperature drops to 4.2K, mercury resistance completely disappear, then it is a kind of "superconductor". In 1933, Netherlands-Meissner and aosen field found that when metal in a superconducting State, the superconducting magnetic induction of zero, but originally existed in vivo magnetic crowding out. Use of Diamagnetism of superconducting materials, superconducting materials on a permanent magnet, magnet and superconductors will produce between Chili, superconductors above suspended in the magnet.

In the ' where da, ore can be suspended at room temperature in a magnetic field, and it is still not found a substance to be able to do this.

"High-temperature superconductors," only in the above-195.8 with superconducting properties of materials, the temperature on the average person is still incredibly low, if you really like the normal Unobtanium superconductors, it does allow some people to Pandora's star big getaway!

In the ' where da "inside, the suspension of the mountain is as rich and can float in Unobtanium" Pandora "magnetic field.

The problem comes, when these mountains mining Unobtanium not just fine, why "ground breaking in Notre Dame head?"

2 big robot by spectrum?

In the ' where da ", the most cool mechanical equipment than the human control of giant robots.

It in the film is called "mobile expansion platform armor", abbreviated "AMP". In fact, the United States military is tender, to develop a weight can help humanity, "you can wear" robot, called "outer skeleton system." One of the tenderers is Raytheon Company Sachs study group designed a "XOS" mechanical armor, the weight of 150 pounds of armor can be installed on the operators of the arms, legs and back. Made of aluminum alloy material XOS mechanical armor can make operators easily hundreds of times to lift 200 pounds of weight, at the same time, the mechanical armor is flexible. In addition, the United States, MIT, UC Berkeley and Japan Honda's research group is also separately designed similar mechanical armor.

The ' where da "in the" mobile expansion platform design armor ".

The film there are other "future technologies", such as between the helicopter and fixed-wing aircraft in between.

However friends have said the ' where da on the Earth's science and technology "adjustments" too low. Humans have been able to make space travel, but the technology looks only reached the level of the early 21st century. Since human beings have been able to mix two different planet genes, Neville with bacteriological warfare is not much more to be easy?

Reporter Liu Zheng