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The Free High School Science Texts (FHSST) organization is a South African non-profit project, which creates open textbooks on scientific subjects. Textbooks are edited to follow the government's syllabus , and published under a Creative Commons license (CC BY [ 1 ] ), allowing teachers and students to print them or share them digitally.
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On 22 July 2021, the Nauka Multipurpose Module Flight Control Group specialists at Mission Control Moscow conducted two correction maneuvers. The first maneuver took place at 15:07 UTC with the module engines' burn for 17.23 seconds giving an impulse of 1 m/s. The second burn for 250.04 seconds took place at 17:19 UTC with an impulse of 14.59 m/s.
Download as PDF; Printable version; ... also known as NEM-1) and Science Power Module 2 ... carry one tenth to one quarter the payload. ...
Distance moduli are most commonly used when expressing the distance to other galaxies in the relatively nearby universe.For example, the Large Magellanic Cloud (LMC) is at a distance modulus of 18.5, [2] the Andromeda Galaxy's distance modulus is 24.4, [3] and the galaxy NGC 4548 in the Virgo Cluster has a DM of 31.0. [4]
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[1] Some numbers of unit squares are never the optimal number in a packing. In particular, if a square of size a × a {\displaystyle a\times a} allows the packing of n 2 − 2 {\displaystyle n^{2}-2} unit squares, then it must be the case that a ≥ n {\displaystyle a\geq n} and that a packing of n 2 {\displaystyle n^{2}} unit squares is also ...
[9] [10] Arguably one of the first books in modern popular science, it contained few diagrams and very little mathematics. Ten editions of the book were published, and it was translated into multiple languages. It was the most popular science title from the publisher John Murray until On the Origin of Species (1859) by Charles Darwin. [7]