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Crop CirclesThe earliest crop circle was found in Scotland in 1647. In 20 century 80s, British discovered many crop circles in the wheat field. Therefore, the phenomenon was called crop circles.Many people believed that crop circles were made by aliens. It is reported that many places where lots of crop circles took place frequently may appear UF0. Besides, the crop circles made by human being were rough and the wheat couldn’t continue to grow up any more. However，some crop circles were so perfect that it is impossible to makeby human.In addition, some people considered that crop circles were just made by human. Moreover, crop circles became tourist attractions, which promoted local economic development. Therefore, some people think crop circles were made by British government to increase the income.Besides, some people thought that crop circle was just a natural phenomenon. It was made by tornado, magnetic field or radiation.In my opinion，I believe that crop circles are made by aliens. Because some cropcircles are so perfect and amazing that we human couldn’t make in such a short time. We couldn’t make sure who made the crop circles yet, however, with the development of technology, we will find out the truth.。
Crop Circles【麦田怪圈简介】麦田怪圈，在长满麦子的麦田一夜之间出现有些麦弯曲而伏倒呈现有规律的圆圈形图案。
17世纪以来，麦田怪圈的起源争论就不绝于耳。
争论【人为所致还是自然现象怪圈成因存在五种争论】第一例关于“麦田怪圈”现象的报道可以追溯到1647年的英国，此后，美国、澳大利亚、欧洲、南美洲、亚洲等地都频频发现麦田怪圈，其中绝大部分是在英国。
截至目前，全世界每年大约要出现250个麦田怪圈，图案也各有不同。
但令人遗憾的是，350多年来，科学界对怪圈是如何形成的一直存在争议，关于成因，目前主要有五种说法。
一是磁场说。
有专家认为，磁场中有一种神奇的移动力，可产生一股电流，使农作物“平躺”在地面上。
美国专家杰弗里·威尔逊研究了130多个麦田怪圈，发现90%的怪圈附近都有连接高压电线的变压器，方圆270米内都有一个水池。
由于接受灌溉，麦田底部的土壤释放出的离子会产生负电，与高压电线相连的变压器则产生正电，负电和正电碰撞后会产生电磁能，从而击倒小麦形成怪圈。
二是龙卷风说。
从有关记载来看，麦田怪圈出现最多的季节是在春天和夏天，有人认为，夏季天气变化无常，龙卷风是造成怪圈的主要原因。
很多麦田怪圈出现在山边或离山六七公里的地方，这种地方很容易形成龙卷风。
三是外星制造说。
很多人相信，麦田怪圈大多是在一夜之间形成，很可能是外星人的杰作。
四是异端说。
一些人相信，麦田怪圈背后有种神秘的力量，就像百慕大三角一样。
根据这种猜测，就有人把麦田怪圈说成是“灾难预告”，借以散布异端邪说。
第五种也是流传较为广泛的说法是人造说。
相当一部分人认为，所谓麦田怪圈只是某些人的恶作剧。
英国科学家安德鲁经过长达17年的调查研究认为，麦田怪圈有80%属于人为制造。
特征【人工制造麦田怪圈】经过调查，发现大部分是某些人的恶作剧，但是热衷于此的人还是对此怀有很大的好奇心。
然而，不久后在英国汉普郡的Chilbolton天文台附近的麦田里再次发现了两个图案，其中之一是一个脸形，很多人都说很像电影电视里外星人的形象。
Crop circles, first appeared in 1647, in England; has a long history with 365 years. But they did not gain much attention until the first modern crop circles appeared in Britain, in 1972. From them on, more than 2000 such circles appeared in the fields all over the world, expect South Africa.The shapes of those circles are different, but nearly all of them are symmetrical; and they are becoming more and more complicated. These strange phenomenon aroused people’s interests: many scientists, geographers, physicists, as well as organizations devoted themselves to find out how these amazing works came out. Unfortunately, until now, no one could make a convincing explanation for how those circles formed. In general, there are 6 explanations: the first one is the earth’s magnetism, which is said that it is the magnetism from the earth that makes them. The second explanation is the effect of tornado. The third one is about prediction which people believe that those circles are the premonition of some kind of disaster. Also, like other strange appearances, some people believed it is the masterpiece from the creature outside the earth. Still some think they are constructed by human beings as a prank. And the last one is high frequent radiation theory.As far as I am concerned, the most unconvincing explanation is the man-made theory: firstly, I can’t image that human beings could make such huge complicated project in such a short time without any vestiges. Secondly, there were many physical characters that appeared in those mysterious circles, like strengthen of infrared ray, which oppose to the theory. Also, according to the physical characters and the well-made shapes, I doubt the tornado explanation. Still, the prediction theory isridiculous to me, because, in my eyes, every phenomenon occurred in some specific reason, we can not simply attribute them to prediction when we can not explain. As for the other three theories, I think they’re both possible for some reasons.In a word, people still can not tell exactly how those circles appeared; as the time goes, I hope that we could finally find out the reason why they occurred.。
Crop Circles
Livia
20110201152
Crop circles are patterns that appear in fields. The first crop circle photographed in the UK was in 1976, however many farmers report circles in their fields going back considerably further than this date. There is a woodcut dating back to the 1600’s known as the “Mowing Devil” which seems to show some kind of circle pattern in crop field. But whether this can be directly linked to crop circle is still on argument. In 1990, more than 500 circles emerged in Europe. Up to now, approximately 10,000 crop circles have been reported internationally.
The answer of whom or what is creating these crop circles remains unknown. Various theories have been put forth. While human beings still can’t find out how the crop circles are formed, all of them are made by human hoaxers. The most controversial theory is that crop circles are the work of aliens from other planets, though no one can put up the evidence that aliens really exist, I still think it is possible because crop circle is too big for human beings to make. The average size of the crop circles is around 200-300 feet in diameter, how could hoaxers make such big patterns and people can not discover them? But it makes sense if the aliens land here and bury something below several kilometers, then they need to make a sign to recognize these places. Besides, others theories such as winds, aircrafts, earth energies are on the table too.
More and more crop circles have been found out from locations such as the UK, Japan, the US and Canada. Over 2000 different shapes of the patterns have appeared
and some even incorporating mathematical and scientific characteristics. And more people join in the research team study them try to figure out the truth.。
