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  2. Wind tunnel - Wikipedia

    en.wikipedia.org/wiki/Wind_tunnel

    The tunnel was powered by a pair of fans driven by 4,000 hp (3,000 kW) electric motors. The layout was a double-return, closed-loop format and could accommodate many full-size real aircraft as well as scale models. The tunnel was eventually closed and, even though it was declared a National Historic Landmark in 1995, demolition began in 2010.

  3. File:A higher English grammar (IA higherenglishgra00bainrich).pdf

    en.wikipedia.org/wiki/File:A_higher_English...

    No pages on the English Wikipedia use this file (pages on other projects are not listed). Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

  4. Physikalisch-Technische Bundesanstalt - Wikipedia

    en.wikipedia.org/wiki/Physikalisch-Technische...

    The Physikalisch-Technische Bundesanstalt (PTB) is the national metrology institute of the Federal Republic of Germany, with scientific and technical service tasks.It is a higher federal authority and a public-law institution directly under federal government control, without legal capacity, under the auspices of the Federal Ministry for Economic Affairs and Climate Action.

  5. The Grammar of Science - Wikipedia

    en.wikipedia.org/wiki/The_Grammar_of_Science

    The Grammar of Science is a book by Karl Pearson first published in hardback in 1892. In 1900, the second edition, published by Adam & Charles Black, appeared. The third, revised, edition was also published by Adam & Charles Black in 1911. It was recommended by Einstein to his friends of the Olympia Academy. Several themes were covered in this ...

  6. CliffsNotes - Wikipedia

    en.wikipedia.org/wiki/CliffsNotes

    CliffsNotes for Romeo and Juliet. CliffsNotes are a series of student study guides.The guides present and create literary and other works in pamphlet form or online. . Detractors of the study guides claim they let students bypass reading the assigned

  7. Grammatical particle - Wikipedia

    en.wikipedia.org/wiki/Grammatical_particle

    In modern grammar, a particle is a function word that must be associated with another word or phrase to impart meaning, i.e., it does not have its own lexical definition. [citation needed] According to this definition, particles are a separate part of speech and are distinct from other classes of function words, such as articles, prepositions, conjunctions and adverbs.

  8. Immersed tube - Wikipedia

    en.wikipedia.org/wiki/Immersed_tube

    An immersed tube (or immersed tunnel) is a kind of undersea tunnel composed of segments, constructed elsewhere and floated to the tunnel site to be sunk into place and then linked together. They are commonly used for road and rail crossings of rivers, estuaries and sea channels/harbours.

  9. Grammar book - Wikipedia

    en.wikipedia.org/wiki/Grammar_book

    A grammar book is a book or treatise describing the grammar of one or more languages. In linguistics , such a book is itself frequently referred to as a grammar . Etymology