Results 101 to 110 of about 35,742 (267)
Expected value, to a point: Moral decision‐making under background uncertainty
Noûs, EarlyView.Abstract Expected value maximization gives plausible guidance for moral decision‐making under uncertainty in many situations. But it has unappetizing implications in ‘Pascalian’ situations involving tiny probabilities of extreme outcomes. This paper shows, first, that under realistic levels of ‘background uncertainty’ about sources of value independent
Christian Tarsney
wiley +1 more source
Candidate Main-belt Asteroids for Surface Heterogeneity
The Astronomical JournalLarge terrestrial bodies in our solar system like the Earth, Mars, Mercury, and the Moon exhibit geologically complex surfaces with compositional heterogeneity.
Sunao Hasegawa +12 more
doaj +1 more source
Eclipse Prediction and Orbit Improvement for Asteroids: Theory and Application to Near Earth Asteroids [PDF]
arXiv, 2005 Asteroids can be eclipsed by other bodies in the Solar System, but no direct observation of an asteroid eclipse has been reported to date. We describe a statistical method to predict an eclipse for an asteroid based on the analysis of the orbital elements covariance matrix.
arxiv
Planetary and Space Science, 2012 163 pages, 395 figures, 6 tables -- Accepted for publication in Planetary & Space ...
openaire +3 more sources
Categorial versus naturalized epistemology
Analytic Philosophy, EarlyView.Abstract How do we know what kinds of things constitute knowledge or justified belief? Naturalized epistemology is committed to denying a priori insight into the kinds of kinds that are and are not knowledge or justification makers. By contrast, it is argued here that knowledge of these matters is a priori knowledge of a special kind.
Nick Zangwill
wiley +1 more source
Philosophy and Phenomenological Research, EarlyView.Abstract Advocates of longtermism point out that interventions which focus on improving the prospects of people in the very far future will, in expectation, bring about an astronomical amount of good (or agent‐neutral value). As such, longtermists claim we have compelling moral reason to engage in long‐term interventions.
Emma Curran
wiley +1 more source
Odessa Astronomical Publications, 2017 Description of the method of temporal unsqueezing CCD-images is presented for observations of asteroids occultations. The method was applied for observations of 9 asteroid occultations with telescope AZT - 8 (D = 0.7m, F = 2.8m) and CCD ST - 8MXE in ...
F. I. Kravtsov, I. V. Lukyanyk
doaj +1 more source
Space weathering of asteroids [PDF]
arXiv, 2012 Analysis of laboratory experiments simulating space weathering optical effects on atmosphereless planetary bodies reveals that the time needed to alter the spectrum of an ordinary chondrite meteorite to resemble the overall spectral shape and slope of an S-type asteroid is about ~ 0.1 Myr.
arxiv
Measurements of positions of asteroids [PDF]
Astronomische Nachrichten, 1913 n ...
openaire +6 more sources
The Astrophysical Journal LettersM-type asteroids are historically thought to be exposed metallic cores of differentiated planets with a composition dominated by pure iron and nickel. However, recent spectral and radar observations reveal an insufficient number of M-type asteroids in ...
Tian Zhang +7 more
doaj +1 more source