Results 131 to 140 of about 144,076 (293)

On the Accuracy of Galileo's Observations [PDF]

open access: yesBaltic Astonomy (2007), vol. 16, pg. 443, 2008
Galileo Galilei had sufficient skill as an observer and instrument builder to be able to measure the positions and apparent sizes of objects seen through his telescopes to an accuracy of 2" or better. However, Galileo had no knowledge of wave optics, so when he was measuring stellar apparent sizes he was producing very accurate measurements of ...
arxiv  

Experimental investigation of hypersonic aerodynamics [PDF]

open access: yes
An extensive series of ballistic range tests were conducted at the Ames Research Center to determine precisely the aerodynamic characteristics of the Galileo entry probe vehicle.
Intrieri, Peter F.
core   +1 more source

Modeling Jupiter's Dawnside Magnetodisc: Using Juno Observations to Constrain a Radial Force‐Balance Model

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract This study investigates Jupiter's dawnside magnetodisc, using plasma and magnetic field measurements from Juno orbits 5 to 12 to refine a radial force‐balance magnetodisc model. This iterative vector potential model examines variations in the azimuthal magnetodisc current, coupled with a magnetosphere‐ionosphere coupling model from which the ...
G. Provan   +4 more
wiley   +1 more source

Galileo un sistema che verrà, parliamone

open access: yesGEOmedia, 2013
Alcune considerazioni al termine della presentazione ufficiale del primo Fix ottenuto dal sistema ...
Renzo Carlucci
doaj  

The Theory of Relativity - Galileo's Child [PDF]

open access: yesarXiv, 2008
We determine the Lorentz transformations and the kinematic content and dynamical framework of special relativity as purely an extension of Galileo's thoughts. No reference to light is ever required: The theories of relativity are logically independent of any properties of light.
arxiv  

Role of Midwater Mixed Waves in the Loop Current Separation Events From a Coupled Ocean‐Atmosphere Regional Model and In Situ Observations

open access: yesJournal of Geophysical Research: Oceans, Volume 130, Issue 4, April 2025.
Abstract A previously uninvestigated necking‐down region in the Gulf of Mexico, associated with the Loop Current eddy (LCE) separations is defined by the 8–16 days variance below the Loop Current system (LCS) around 88.5°W, using an Ocean‐Atmosphere Coupled Regional‐Community Earth System Model (R‐CESM) 9‐year nature run, which reveals the mechanisms ...
Xiao Ge   +7 more
wiley   +1 more source

Improved Multi-GNSS PPP Software for Upgrading the DEMETRA Project Time Monitoring Service

open access: yesSensors, 2019
The H2020 DEMETRA project provides short latency clock monitoring services to the time users using the Atomium precise point positioning (PPP) software developed by the Royal Observatory of Belgium.
Wei Huang   +3 more
doaj   +1 more source

The Galileo satellite constellation and modifications to the inverse-square law for Gravitation [PDF]

open access: yesarXiv, 2009
We consider the impact of a power-law correction to the Newtonian potential, inspired by ungravity or $f(R)$ extensions of the Standard Model, and draw conclusions on the possibility of measuring the relevant parameters through observables made available by the Galileo satellite positioning system.
arxiv  

Neotropical Cerambycidae (Coleoptera) primarily in the Canadian Museum of Nature, Ottawa. I. Falsamblesthiini (Lamiinae) [PDF]

open access: yes, 2010
The following new species are described: Nyctonympha andersoni, sp. n., and N. howdenarum, sp. n., both from Colombia; N. genieri, sp. n., from Ecuador; N. taeniata, sp. n., from Trinidad; Falsamblesthis microps, sp.
Galileo, Maria Helena M.   +1 more
core  

Helium in Mercury's Extended Exosphere Determined by Pick‐Up Generated Ion Cyclotron Waves

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract Helium (He) was first detected by remote spectroscopic observations of the Ultraviolet Visible Spectrometers (UVVS) instrument in Mercury's exosphere during the three Mariner 10 flybys in 1974 and 1975. Here, we derive the first in situ radial density profile of He in Mercury's extended exosphere by analyzing magnetic field and plasma ...
F. Weichbold   +8 more
wiley   +1 more source

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