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Crop circle. A crop circle, crop formation, or corn circle is a pattern created by flattening a crop, [1] usually a cereal. The term was first coined in the early 1980s. [2] Crop circles have been described as all falling "within the range of the sort of thing done in hoaxes " by Taner Edis, professor of physics at Truman State University. [3]
When the U.S. presidential election is the headline act, political marketing strategies reach their all-time highs. Historically, interacting with the voters has been about getting your face out ...
There is evidence that the formation of the Solar System began about 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. [ 1 ] Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and ...
The history of scientific thought about the formation and evolution of the Solar System began with the Copernican Revolution. The first recorded use of the term "Solar System" dates from 1704. [1][2] Since the seventeenth century, philosophers and scientists have been forming hypotheses concerning the origins of our Solar System and the Moon ...
The history of the Earth can be organized chronologically according to the geologic time scale, which is split into intervals based on stratigraphic analysis. [2] [21] The following five timelines show the geologic time scale to scale. The first shows the entire time from the formation of the Earth to the present, but this gives little space ...
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]