ADA128307_UFOsandUAPs.pdf

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FTD-ID(RS)T-0231-83 
FOREIGN TECHNOLOGY DIVISION 
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THE "UFO" OF JULY 24, 1981 
A Discussion with Comrade Zhang Zhousheng 
by 
Liu Yan 
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From THE ASTRONOMY LOVER 
THE "UFO" OF JULY 2!J, 1981 
A Discussion with Comrade Zhang Zhousheng 
Liu Yan 
The "7.24" UFO Event 
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About 10:40 p.m., July 2!J, 1981, several million people in 
Gansu, Qinghai, Sichuan, Yunnan, etc., provinces in the western 
part of our country witnessed an amazing "flying disc" event: 
A spectacular flying luminous body with a spiral shape appeared 
in the sky; its central portion spins and moves slowly about a 
direction from east to west. 
A wonderful na…

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Zhang Zhousheng's Prediction 
According to Zhang Zhousheng's theory, many UFO's are a 
special phenomenon formed by the approach near the earth of 
meteoroids f…

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What Zhang Zhousheng has predicted is, therefore, not 
a 
meteoroid that will become a UFO, but at most the apparent location 
of the radiant point of a certain meteoric swarm on the celestial 
sphere. 
Here, moreover, we have also to add a note that Cassiopeia 
is not truly the celestial region in correspondence with his pre-
diction. 
To the observers in our country, the celestial region in 
correspondence with his p…

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Second, even if there are indeed some charged particles in 
the meteoroid, it is still impossible that they "will be released 
from the confinement of the self-gravity of the meteoroid" (note: 
What kind of gravity? It is very vague) because of the action of 
the Lorentz force. 
As far as we know, the Lorentz force does not 
work on charged particles; it gives only centripetal force to the 
rotating motion. 
Third, even if the charged particles are indeed rotating 
several thousand km above the Earth, it is still impossible for us 
to observe the details of the spiral shape by eye on the g…

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Sixth, the cause of illumination of what he says is "the excited 
radiation." But we have to point out here that under the condition 
he describes it is impossible to produce an "excited radiation." 
The errors in Zhang Zhousheng's "theory" are many, and we are 
not going to point out further ones because of the limited space. 
However, from what we have already discussed we can see that almost 
every sentence in hi~ co-called "theory of UFO format…