1) Crop circle and "ball of light" (BOL) reports date back as far as 1678, with about one hundred prior to 1980.
2) As many as 10,000 crop circles known since 1976.
3) Crop circles appear in tobacco, oilseed, rapeseed, wheat, barley, oats, flowers and most other agricultural crops, as well as ice, snow, sand and trees.
4) Crop circles appear in over 70 crop-growing countries; only mainland China and South Africa have not reported the phenomenon.
5) Large, complex formations are known to occur in as little as 30 minutes, according to signed affadavits. At least one crop circle design was reported to have been added on to while researchers were in the field.
6) 99+ percent of all formations are never shown to have been mechanically hoaxed (no videos exist of their creation, no pre-announcement was made, etc.).
7) Physical anomaly: Node length increases on plants were found to decrease exponentially with distance from the formation's center, in accordance with the Beer-Lambert principle of absorption of electromagnetic radiation by matter.
8) Physical anomaly: Node length increases on plants were found to decrease exponentially with distance from the formation's center, in accordance with the Beer-Lambert principle of absorption of electromagnetic radiation by matter, and also to extend outside the formation into standing grain.
9) Physical anomaly: Significant changes in germination, or seedling growth, rates. Growth rates in seeds taken from crop formation plants range from no germination at all to markedly increased growth of seedlings.
10) Balls of light (BOLs) are commonly reported in association with crop circles. Many are captured on video and in still photography. BOL movements are clearly non-random.
11) Physical anomaly: Grossly enlarged (both laterally and longitudinally, up to 200-300% over controls) plant stem nodes.
12) Physical anomaly: Marked bending of the plant stem nodes, from as little as 10 to an extreme of 90 or more, occurring at some or all of the nodes of a stem.
13) Physical anomaly: "Expulsion cavities" (holes at the plant stem nodes blown from the inside-out).
14) Physical anomaly: Malformed seed-heads, in which in some cases the seeds are missing or, more often, in which the seeds are severely stunted.
15) Physical anomaly: Abnormal enlargement of cell wall pits in bract tissue (the thin, protective membrane surrounding the developing embryo).
16) Physical anomaly: Perfectly round silicon dioxide "microspheres" have been found in formations. Similar "cenospheres" are found to be the result of the coal burning process. Spherules observed to increase in concentration linearly from center to edge of circle.
16) Physical anomaly: the most extreme node length increases are found in the less geometric, more randomly-downed crop formations.
17) Physical anomaly: Concentrations of meteoritic dust (magnetite) at levels up to 600 times naturally-occurring levels have been found in formations
18) Physical anomaly: In the Cherhill formation, a thin layer of metallic material was found glazed on the crop and underlying soil, resulting in magnetized leaves, heads, stems and soil.
19) Physical anomaly: Fluxgate magnetometer surveys conducted on seven large formations showed increased magnetic field intensity (up to 300% of Earth's normal field) within the formations.
20) Novel mathematical information is included in the geometry of crop circles.(6); Details O Consistent with phenomenon operating outside constraints of present scientific knowledge. Assumes coordinated, as yet unidentified hoaxing team accidentally or purposely conveying previously unknown natural laws.
21) The difference between the primary sizes of the most striking crop circles represents the identical ratio between consecutive notes on the musical scale.
22) Physical anomaly: In a 1997 Dutch formation in a carrot field, leaves of the same plant laid in opposite directions, as if by a "combing" action.
23) Downed stems in 1997 Dutch formation found resting perpendicularly through "curtains" of standing grain.
24) Swirled "tufts" of grain at centers of many circles have intertwined stalks.
25) Footprints are not found in many formations when they are first discovered, even in formations with soft sand.
26) Physical anomaly: Burn marks often found in crop circles.
27) Physical anomaly: Bent and dehydrated stems are often found in crop circles.
28) Physical anomaly: Anomalous "pitting" is found in crop circles.
29) Physical anomaly: In one formation, stunned and exploded insects were found stuck to seedheads.
30) Physical anomaly: Equipment malfunctions, erratic behavior of magnets and compasses, and physical side effects are common in and around formations
31) Physical anomaly: At the center of seven large circles the radiation measured 40-50 nanoTeslas, or ten times the radiation level of a normal field.
32) Physical anomaly: Sand rings which appeared in Oregon in 1994 showed anomalous anion level changes.
33) Physical anomaly: "Imprints" of formations sometimes appear in fields in following seasons.
34) Physical anomaly: High levels of short-lived isotopes (the non-naturally occurring yttrium-88 and bismuth-205) have been found in crop circle soil samples.
35) Physical anomaly: Narrow tracks of dehydrated grass bent 20cm above the ground leading out of formations
36) Some formations imprinted on sloping or otherwise uneven ground are often adapted to the land so as to appear geometric only from above.
37) Most formations are symmetrical and circular, often with connective paths.
38) Eyewitnesses reported a "great column of luminosity" as it descended from a dark cloud near Alton Barnes in England. The column lasted only a few seconds and spread out sideways as it collapsed toward the ground. The column then briefly assumed the shape of a pictogram found later at Hackpen Hill five miles due north.
39) According to a 1993 North American Institute for Crop Circle Research (NAICCR) report, dozens of crop circle witnesses claim to have observed "strong, spiraling downdraughts" in connection with crop formations.
40) Eyewitness reported watching a flock of geese fly over a field in which a formation had recently appeared. Upon passing over the field, the geese split and then reformed over the circle.
41) Frequently, a high-pitched sound or "trilling" either preceding or accompanying a formation is reported by witnesses in the vicinity of the crop circle.
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