IAO论坛

[1987夏至]

以下用户是在很短的时间内注册的，而且与现有用户名有冲突。
因此被判断为恶意注册，于今天中午删除。

28 SN0VA
29 coolforever
30 superman
31 FURTHY
32 catbowl
33 TILO
34 IMPOSSIBLE
35 NUMB
36 ASTROEGG
37 SOHARD
38 s NOVA

如有误删，请重新注册，并及时报道。
以免再发生误删。

[morpho]

谁这么损啊

[1987夏至]

帐号vanseoling由于发布广告被删除。
同时他使用的IP58.65.236.57也被禁止全站访问。

[bigbangasker]

合作者：“你推导出的这个五阶变系数非齐次偏微分方程能有解么？”

作者：“能。而且结果很可怕，结果对量子渐进自由和轻子内部结构理论有帮助，但是可能……”

合作者：“它能符合黎曼空间联络的勒维-奇维塔变换么？”

作者：“不能，理由是黎曼空间是建立在n维的无限弯曲空间，而方程要满足n维有界无限联络体系。”

合作者：“这意味着……”

作者：“建立新的空间几何联络体系。”

合作者：“有苗头了么？”

作者：“还没，我尝试要着手黎曼空间，从仿射入手，但是在协变微分法得到的结果有些问题。当然，我的意思是不我方法的问题，是关于李奇张量的问题。”


李奇张量 曲面向量张量？？？？作者是谁啊？？我第一次看是还以为是问题的解答呢，吓我一跳。。。。。。。。。。。。。

[bigbangasker]

为甚麽有人恶意注册，有什麽目的吗？？

[yan9085]

The history of life on earth has been a history of interaction between living things and their surroundings. To a large extent, the physical form and the habits of the earth's vegetation and its animal life have been molded by the environment. Considering the whole span of earthly time, the opposite effect, in which life actually modifies its surroundings,has been relatively slight. Only in the present century has one species--man acquired significant power to alter the nature of his world.
replica sunglasses,
During the past quarter century this power has not only become increasingly great but it has changed in character.replica sunglasses The most alarming of all man's assaults upon the environment is the contaminatien of air, earth, rivers, and sea with dangerous and even lethal materials. This pollution is for the most part irrecoverable. In this now universal contamination of the environment, chemicals are the sinister partners of radiation in changing the very nature of the world, the very nature of its
life.
aoc gold,
It took hundreds of millions of years to produce the life that now inhabits the earth.aoc gold Given time not in years but in millennia life adjusts, and a balance has been reached. But in the modern world there is no time.
age of conan power leveling,
It is not my contention that chemical insecticides must never be used.age of conan power leveling I do contend that we have put poisonous and biologically potent chemicals indiscriminately into the hands of persons largely
aion gold,
or wholly ignorant of their potentials for harm.aion gold We have subjected enormous numbers of people to contact with these poisons, without their consent and often without their knowledge. I contend,furthermore, that we have allowed these chemicals to be used with little or no advance investigation of their effect on soil, water, wildlife, and man himself. Future generations are unlikely to forgive our lack of concern for the integrity of the natural world that supports all life.
maple story mesos,
The most pressing problem created by the rapid increase in population is a shortage of food.maple story mesos More mouths have to be fed every year and yet a high proportion of the existing population are not getting enough of the right kind of food. Over the past two years the total amount of food has decreased, and of course the total amount of food per person has decreased even more sharply.
dog clothes,
More and more of the babies born in developing countries have been surviving infancy,dog clothes and now nearly half the people living in those countries are under the age of 15. The adults have to work harder than ever to provide for the needs of the children,who cannot contribute to the economy until they are older. There is a shortage of schools and teachers, and there are not enough hospitals, doctors and nurses. Farming land is becoming scarce,so country people are moving to the towns and cities in the hope of finding a better standard of living. But the cities have not been able to provide housing, and the newcomers live in crowded slums.Finally, there are too few jobs, and unemployment leads to further poverty.