Rocks unravel the secrets of the Earth's magnetic field
More than 350 million years ago something odd was going on with the Earth's magnetic field. Scientists now propose that the field was really weak, which may have affected life on our planet.
More than 350 million years ago something odd was going on with the Earth's magnetic field. Scientists now propose that the field was really weak, which may have affected life on our planet.
Earth Sciences
20 hours ago
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9
Many of us know the conventional theory of how the dinosaurs died 66 million years ago: in Earth's fiery collision with a meteorite, and a following global winter as dust and debris choked the atmosphere. But there was a ...
Evolution
Jul 01, 2022
14
990
Songbirds learning from nearby birds that food supplies might be growing short respond by changing their physiology as well as their behavior, research by the Oregon State University College of Science shows.
Plants & Animals
Jul 01, 2022
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964
Two levels underground, Chicago's Field Museum has a secret bunker. The sub-basement Collections Resource Center houses millions of biological specimens for scientists around the world to use in their research, including ...
Plants & Animals
Jun 30, 2022
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51
A new study has found that a highly antibiotic-resistant strain of the superbug MRSA—methicillin resistant Staphylococcus aureus—has emerged in livestock in the last 50 years, probably due to widespread antibiotic use ...
Cell & Microbiology
Jun 28, 2022
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443
As climate change alters environments across the globe, scientists have discovered that in response, many species are shifting the timing of major life events, such as reproduction. With an earlier spring thaw, for example, ...
Ecology
Jun 27, 2022
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87
SN 1054 was one of the most spectacular astronomical events of all time. The supernova explosion eventually formed what is today known as the M1—the Crab Nebula. But in 1054 AD, the year it occurred, it was an ultrabright ...
Astronomy
Jun 24, 2022
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110
Things have changed since I was last in Belize in 2018, when I excavated the ancestral Maya pilgrimage site Cara Blanca. Thousands of acres of jungle are gone, replaced by fields of corn and sugarcane. Hundreds of ancestral ...
Archaeology
Jun 22, 2022
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20
Just three months ago, the Yellowstone region like most of the West was dragging through an extended drought with little snow in the mountains and wildfire scars in Red Lodge from a year ago when the area was hit by 105-degree ...
Environment
Jun 17, 2022
9
34
Understanding each other's thoughts and feelings is a vital component of successful relationships. For example, when we're discussing emotional or stressful situations with other people, our intuition may tell us that someone ...
Social Sciences
Jun 16, 2022
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3
History (from Greek ἱστορία - historia, meaning "inquiry, knowledge acquired by investigation") is the discovery, collection, organization, and presentation of information about past events. History can also mean the period of time after writing was invented. Scholars who write about history are called historians. It is a field of research which uses a narrative to examine and analyse the sequence of events, and it sometimes attempts to investigate objectively the patterns of cause and effect that determine events. Historians debate the nature of history and its usefulness. This includes discussing the study of the discipline as an end in itself and as a way of providing "perspective" on the problems of the present. The stories common to a particular culture, but not supported by external sources (such as the legends surrounding King Arthur) are usually classified as cultural heritage rather than the "disinterested investigation" needed by the discipline of history. Events of the past prior to written record are considered prehistory.
Amongst scholars, the fifth century BC Greek historian Herodotus is considered to be the "father of history", and, along with his contemporary Thucydides, forms the foundations for the modern study of history. Their influence, along with other historical traditions in other parts of their world, have spawned many different interpretations of the nature of history which has evolved over the centuries and are continuing to change. The modern study of history has many different fields including those that focus on certain regions and those which focus on certain topical or thematical elements of historical investigation. Often history is taught as part of primary and secondary education, and the academic study of history is a major discipline in University studies.
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