How Mexican Rebels Destroy Railways and Bridges
نویسندگان
چکیده
منابع مشابه
How many low - mass stars do destroy 3 He ?
We recall the current status of the long-standing 3 He problem, and its possible connection with chemical anomalies on the red giant branch. In this context, we collect in the literature all the available observations of the carbon isotopic ratio in field and cluster giant stars. Using the HIPPARCOS paral-laxes, we get constraints on the evolutionary status of the field stars of the sample. Thi...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1913
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09131913-209