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Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. [1] This includes the study of body fossils, tracks ( ichnites ), burrows , cast-off parts, fossilised feces ( coprolites ), palynomorphs and chemical residues .
' Tsar bomb '; code name: Ivan [5] or Vanya), also known by the alphanumerical designation "AN602", was a thermonuclear aerial bomb, and the most powerful nuclear weapon ever created and tested. [ 6 ] [ 7 ] The Soviet physicist Andrei Sakharov oversaw the project at Arzamas-16 , while the main work of design was by Sakharov, Viktor Adamsky ...
A time bomb's timing mechanism may be professionally manufactured either separately or as part of the device, or it may be improvised from an ordinary household timer such as a wind-up alarm clock, wrist watch, digital kitchen timer, or notebook computer. The timer can be programmed to count up or count down (usually the latter; as the bomb ...
It has since been set backward 8 times and forward 18 times. The farthest time from midnight was 17 minutes in 1991, and the nearest is 89 seconds, set in January 2025. [5] The Clock was moved to 150 seconds (2 minutes, 30 seconds) in 2017, then forward to 2 minutes to midnight in 2018, and left unchanged in 2019. [6]
Michael James Benton (born 8 April 1956 [2]) is a British palaeontologist, and emeritus professor of vertebrate palaeontology in the School of Earth Sciences at the University of Bristol. [ 3 ] [ 4 ] [ 5 ] His published work has mostly concentrated on the evolution of Triassic reptiles but he has also worked on extinction events and faunal ...
The space rock that slammed into Earth 66 million years ago at the end of the Cretaceous Period caused a global calamity that doomed the dinosaurs and many other life forms. Researchers assessed ...
Evidence from the study of phytoliths from the Giraffe locality (Northwest Territories, Canada), indicative of presence of palms close to the Arctic Circle over an extensive period of time during the Eocene (approximately 48 million years ago), is presented by Siver et al. (2025).
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