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Nature's Third Cycle: A Story of Sunspots
The cycle of day and night and the cycle of seasons are two familiar natural cycles around which many human activities are organized. But is there a third natural cycle of importance for us humans? On 13 March 1989, six million people in Canada went without electricity for many hours: a large exp...
| Главный автор: | |
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| Формат: | Printed Book |
| Опубликовано: |
Oxford, United Kingdom
Oxford University Press
2015
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| Предметы: |
University of Kerala
| Шифр: |
O-,2J64,2R E7 |
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| Копировать | Недоступно состояние Live" What does mean the status Live (working) |