. . "NATURE Sky Observation." . . "Libros electrónicos" . "Why is the sky blue and why are sunsets red? When can I see a rainbow? Why is the moon sometimes visible in daylight? In Out of the Blue skywatcher John Naylor offers practical advice about where and when you can expect to see natural phenomena, what you will see and how to improve your chances of seeing it. Naylor takes in both the night and the day sky, and deals only with what can be seen with the naked eye. Drawing on science, history, literature and mythology, and assuming only basic scientific knowledge, Out of the Blue is for everyone who enjoys being outdoors and who feel curious or puzzled about things optical and astronomical." . . . . . . . . . . . "Einführung" . . . "Why is the sky blue? How can I see an eclipse? Skywatcher John Naylor offers practical advice on where and when you should look for natural phenomena in both the day and night sky. Out of the Blue is for all those curious or puzzled about things optical and astronomical."@en . . . . . . "Out of the blue a 24-hour skywatcher's guide" . "Out of the blue a 24-hour skywatcher's guide"@en . . "Electronic books"@en . . "Electronic books" . . . "Livres électroniques" . . "Out of the blue : a 24-hour skywatcher's guide" . . . . "Handbooks and manuals" . "Handbooks and manuals"@en . . . . . . . . . . "Optique météorologique Manuels d'observation." . . "Planet." . . "Astronomy." . . "Astronomy" . "Astronomy Observers' manuals." . . "Astronomía Manuales de observación." . . "Optique météorologique." . . "Astronomie Manuels d'observation." . . "Meteorological optics." . . "Meteorological optics" . "Óptica meteorológica Manuales de observación." . . "Himmelsbeobachtung." . . "Meteorological optics Observers' manuals." . .