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2 天前 · This is a list of Russian military aircraft currently in service across three branches of the Russian Armed Forces, as well as in the National Guard of Russia. The list further encompasses Russia's experimental aircraft and those currently in development.
3 天前 · The ocean is the body of salt water that covers ~70.8% of the Earth.[8] In English, the term ocean also refers to any of the large bodies of water into which the world ocean is conventionally divided.[9] Distinct names are used to identify five different areas of the ocean: Pacific, Atlantic, Indian, Antarctic/Southern, and Arctic.[10][11] The ...
- 3.688 km (2 mi)
- 1,370,000,000 km³ (328,680,479 cu mi) (97.5% of Earth's water)
- 361,000,000 km² (139,382,879 sq mi) (71% of Earth's surface area)
- List of countries by length of coastline
1 天前 · The COVID pandemic exacerbated these challenges. While some regions, such as Asia, have experienced significant setbacks, the global effort towards the SDGs calls for prioritizing environmental sustainability, understanding the indivisible nature of the goals, and seeking synergies across sectors.
2 天前 · From Wikipedia, the free encyclopedia. Countries by number of active soldiers (2015) This article needs to be updated. Please help update this article to reflect recent events or newly available information. (March 2024) This is a list of countries by number of military and paramilitary personnel.
4 天前 · Rosalind Elsie Franklin (25 July 1920 – 16 April 1958) [1] was a British chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite. [2] .
1 天前 · CRISPR (/ ˈ k r ɪ s p ər /) (an acronym for clustered regularly interspaced short palindromic repeats) is a family of DNA sequences found in the genomes of prokaryotic organisms such as bacteria and archaea. These sequences are derived from DNA fragments of bacteriophages that had previously infected the prokaryote. ...
1 天前 · Etymology The word metaphysics derives from the Greek words μετὰ (metà, "after, behind, following" and possibly "transcending") and φυσικά (physiká, "physics"). It has been suggested that the term might have been coined by first century BC Aristotelian editor Andronicus of Rhodes who assembled fourteen books of Aristotle's works into the treatise we now know by the name ...