Results 51 to 60 of about 3,080 (302)
Spectral analysis of four meteors [PDF]
, 1973 Four meteor spectra are analyzed for chemical composition and radiative processes. The chemical compositions of the Taurid, Geminid, and Perseid meteors were found to be similar to that of a typical stony meteorite.
Harvey, G. A.
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Journal of Quaternary Science, EarlyView.ABSTRACT Termites are landscape geo‐engineers whose nesting activities substantially modify the physical and chemical properties of soils. Fossilised termite nests commonly constitute the only identifiable evidence of ancient termite activity and represent valuable trace fossil archives for reconstructing past environments.
Miengah Abrahams +7 more
wiley +1 more source
Characteristic Features of the Colors of Shower Meteors and Sporadic Meteors from Observations with the Mini-MegaTORTORA System [PDF]
, 2019 © 2019, Pleiades Publishing, Ltd. Results of BV R observations of meteors in the Perseid, Taurid, Orionid, Geminid, and Lyrid showers, as well as sporadic meteors, carried out with the Mini-MegaTORTORA system are presented.
Sokolova M., Usanin V., Nefedyev Y.
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Meteor Statistics. I. The Distribution of Instrumental Magnitudes
The Astronomical JournalThe distribution of meteor magnitudes is known to follow an exponential distribution, where the base of this distribution is called the population index.
Althea V. Moorhead +4 more
doaj +1 more source
A Revised Catalogue of Meteor Outbursts in Korean, Japanese, Chinese Histories [PDF]
Journal of Astronomy and Space Sciences, 2005 We made a revised catalogue for reliable records of meteor outbursts that were recorded in Korean, Japanese, and Chinese chronicles. In order to avoid the effects of both Earth's precession and perihelion shift, we introduced a new time-coordinate of ...
Sang-Hyeon Ahn
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Journal of Quaternary Science, EarlyView.ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay +6 more
wiley +1 more source
Apparatus for photographing meteors [PDF]
, 1973 Apparatus for photographing meteors in a selected area of the sky is described. A photomultiplier is pointed in the direction of the area. When a meteor passes through the area the signal output of the photomultiplier increases.
Harvey, G. A.
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Geofísica InternacionalIn this paper, the importance of information posted on social networks in the study of meteoroid entry into the Earth’s atmosphere is shown. This kind of networks work thanks to the information shared by many people, which is stored on different servers.
Arturo Cuevas Muñóz +2 more
doaj +1 more source