Results 21 to 30 of about 783,055 (280)

Elementary Solution of Kepler Problem (and a few other problems)

open access: yesRevista Brasileira de Ensino de Física, 2022
We present a simple method to obtain the solution of a few orbital problems: the Kepler problem, the modified Kepler problem by the addition of an inverse square potential and linear force.
M. Moriconi
doaj   +1 more source

A Tale of Two Annies: Historical Memory, Archives and the Perpetuation of the Sinners to Angels Trope in American Sex Worker History

open access: yesGender &History, EarlyView., 2023
Abstract As a historian of sex work, I analyse the power dynamics in the archiving practices and interpretation of sex worker lives, deconstructing the historic and current discourses shaping the possibilities for sex workers. In this article, I explore the legends of nineteenth‐century Madams Annie Cook and Annie Chambers.
Ashley Barnes‐Gilbert
wiley   +1 more source

The nested planar central configurations of a trapezoid form in classical and generalized versions of the general (4n+1)-body problem

open access: yesRUDN Journal of Engineering Research, 2023
The study of central configurations, whose concepts and definitions were already formulated by the classics of celestial mechanics - Euler, Lagrange, Laplace and Liouville in the XVIII-XIX centuries, is of interest not only for celestial mechanics, but ...
Yulianna V. Perepelkina   +1 more
doaj   +1 more source

James Croll, celestial mechanics and climate change

open access: yes, 2021
James Croll was a pioneer in studies of the impact of the slowly changing orbital dynamics of the Earth on climate change. His book Climate and Time in their Geological Relations (1875) was far ahead of its time in seeking correlations between climate ...
M. Longair
semanticscholar   +1 more source

The earth orbiting space debris [PDF]

open access: yesSerbian Astronomical Journal, 2005
The space debris population is similar to the asteroid belt, since it is subject to a process of high-velocity mutual collisions that affects the long-term evolution of its size distribution.
Rossi A.
doaj   +1 more source

Catholic Civics Education in the Early Cold War: Zeal for Democracy, Zeal for Christ

open access: yesJournal of Historical Sociology, Volume 35, Issue 4, Page 424-444, December 2022., 2022
Abstract In the late 1940s and 1950s American Catholic educators faced the dilemma of how to transmit Catholic faith and culture to the next generation while also reassuring their non‐Catholic neighbors that they were fully American in lifestyle and loyalties.
Jane McCamant
wiley   +1 more source

Knowledge as a collective status

open access: yesAnalytic Philosophy, Volume 63, Issue 4, Page 277-304, December 2022., 2022
Abstract While social epistemology is a diverse field, much of it still understands knowledge as an individual status—albeit an individual status that crucially depends on various social factors (such as testimony). Further, the literature on group knowledge until now has primarily focused on limited, specialized groups that may be said to know this or
Jeremy Randel Koons
wiley   +1 more source

Satellite orbit under influence of a drag - analytical approach [PDF]

open access: yesSerbian Astronomical Journal, 2017
The report studies some changes in orbital elements of the artificial satellites of Earth under influence of atmospheric drag. In order to develop possibilities of applying the results in many future cases, an analytical interpretation of the ...
Martinović M.M., Šegan S.D.
doaj   +1 more source

Hyperbolic normal forms and invariant manifolds: Astronomical applications [PDF]

open access: yesSerbian Astronomical Journal, 2012
In recent years, the study of the dynamics induced by the invariant manifolds of unstable periodic orbits in nonlinear Hamiltonian dynamical systems has led to a number of applications in celestial mechanics and dynamical astronomy.
Efthymiopoulos C.
doaj   +1 more source

Getting a grip: On causation, agency, and the meaning of “manipulation”

open access: yesTheoria, Volume 88, Issue 6, Page 1228-1247, December 2022., 2022
Abstract In the philosophy of causation, manipulationist literature is broadly divided into agency and interventionist accounts. The division between these accounts is partially due to a dispute regarding the meaning of “manipulation”, which specifically questions, “Must one analyse manipulation by appealing to human agency?” This paper attempts to ...
Erik van Aken
wiley   +1 more source

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