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A strangelet (pronounced / ˈ s t r eɪ n dʒ. l ɪ t /) is a hypothetical particle consisting of a bound state of roughly equal numbers of up, down, and strange quarks.An equivalent description is that a strangelet is a small fragment of strange matter, small enough to be considered a particle.
Gray goo (also spelled as grey goo) is a hypothetical global catastrophic scenario involving molecular nanotechnology in which out-of-control self-replicating machines consume all biomass (and perhaps also everything else) on Earth while building many more of themselves, [1] [2] a scenario that has been called ecophagy (the literal consumption of the ecosystem). [3]
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 2025. This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources. The Last Judgment by painter Hans Memling. In Christian belief, the Last Judgement is an apocalyptic event where God makes a final ...
In particle physics and astrophysics, the term 'strange matter' is used in two different contexts, one broader and the other more specific and hypothetical: [1] [2]. In the broader context, our current understanding of the laws of nature predicts that strange matter could be created when nuclear matter (made of protons and neutrons) is compressed beyond a critical density.
Whether you prefer it when humanity ends with a bang (Badland Hunters, Zombieland) or with a whimper (Don’t Look Up), read on for Entertainment Weekly’s list of the 10 best apocalypse movies ...
If the primary content of the universe is inert matter, as in the dust models popular for much of the 20th century, there is a particular fate corresponding to each geometry. Hence cosmologists aimed to determine the fate of the universe by measuring Ω {\displaystyle \Omega } , or equivalently the rate at which the expansion was decelerating.
End-of-the-world films have been popular for decades, with the apocalypse triggered by nuclear war, disease and more. Here, our favorite doomsday movies. 20 best apocalypse movies to watch now
Climate apocalypse – Term to describe possible catastrophic events due to climate change; Climate Clock – Public countdown of time until 1.5°C of global warming; DEFCON – Alert posture used by the United States Armed Forces; Doomsday device – Construct which could destroy all life on a planet or a planet itself