La première révolution du xxie siècle ? by Réda Benkirane

Subjects: “…light-year…”
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NOCTURNAL LEPIDOPTERA CAPTURED DURING 2013-2015 IN THE SPECIFIC AREA SIBIEL-SIBIU (ROMANIA) by Cristina STANCĂ-MOISE

“…Capturing harmful insects by using trap light years in the period 2013-2015, contributes to protecting the environment and thus eliminate the use of pesticides in soil persistence that can be used to combat pests of crops, and to establish optimal combat moments when treatment it is justified economically.…”
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Skepping en evolusie: 'n filosofiese besinning oor tyd, ruimte en materie by P. H. Stoker

“…The result is ages of thousands of million years for the earth and early life,and for a universe, having a size in terms of this number of light-years. None of these assumptions and results can be verified. …”
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Strength Ratios of Diffuse Interstellar Bands in Slightly Reddened Objects by Jacek Krełowski, Arkadii Bondar

“…The disk of the Milky Way fills the interstellar medium in the form of discrete clouds, many (∼30) light-years across. The average density of this medium is 1 hydrogen atom per cm³ (Oort limit), in the clouds—several dozen atoms, and between the clouds about 0.01 atoms per cm³. …”
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