128 Cover: yangphoto / Getty Images, Dashabelozerova / iStock / Getty Images; S. 2, 1: Madelein_Wolf – Getty Images/iStockphoto; S. 2, 2: Juan Carlos Hernández Hernández – Getty Images/iStockphoto; S. 2, 3: Maxim Khytra / Derkien – Getty Images/iStockphoto; S. 3, 1: Uwe Moser – Getty Images/iStockphoto; S. 3, 2: Klaus Eppele / Fotolia; S. 5, 1: Alexlukin – Getty Images/iStockphoto; S. 5, 2: Gerhard Wild / picturedesk.com; S. 5, 3: Highwaystarz-Photography – Getty Images/ iStockphoto; S. 5, 4: Mag. Gustav Breyer, Wien; S. 6, 1.1: Imgorthand – Getty Images; S. 6, 1.3: Eloisa Ramos / Westend61 / picturedesk.com; S. 7, 1.4: Science Photo Library / picturedesk.com; S. 7, 1.5: PhonlamaiPhoto / Getty Images – iStockphoto; S. 7, 1.6: Pietus – Getty Images/ iStockphoto; S. 7, 1.7: Marina113 – Getty Images/iStockphoto; S. 8, 2.2: Pgiam / iStockphoto; S. 9, 2.4: Nastasic – Getty Images/iStockphoto; S. 9, 2.5: OEAMTC / APA / picturedesk.com; S. 9, 2.6: BanksPhotos – Getty Images/iStockphoto; S. 10, 3.2: pappamaart – Getty Images/ iStockphoto; S. 10, 3.3: Jfanchin – Getty Images/iStockphoto; S. 11, 3.4: Julian Enache / ChromOrange / picturedesk.com; S. 11, 3.5: akg-images / picturedesk.com; S. 11, 3.6: Verbund AG, Wien; S. 11, 3.7: Bernhard Weber / iStockphoto; S. 12, 4.1: Rawpixel Ltd. – Getty Images/ iStockphoto; S. 12, 4.2: Mark_KA – Getty Images/iStockphoto; S. 12, 4.3: Media Castle – Getty Images/iStockphoto; S. 14, 6.1: Mag. Stefan Kapeller, Wien; S. 14, 6.2: Mag. 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Hans Haimo Tentschert, Graz; S. 44, 26.5: Mag. Hans Haimo Tentschert, Graz; S. 45, 27.1: Photoboyko – Getty Images/iStockphoto; S. 45, 27.2: MEV-Verlag, Germany; S. 45, 27.3: rotofrank / iStockphoto; S. 45, 27.4: Vadven / Thinkstock; S. 46, 28.1: BanksPhotos / Getty Images – iStockphoto; S. 46, 28.2: Mag. Hans Haimo Tentschert, Graz; S. 46, 28.3: Zentralanstalt für Meteorologie und Geodynamik, https://www.zamg.ac.at / ZAMG, Wien; S. 47, 29.1: Zentralanstalt für Meteorologie und Geodynamik, https:// www.zamg.ac.at / ZAMG, Wien; S. 47, 29.2: Roswitha S. / stock.adobe. com; S. 48, 11: Alexandra Draghici / Getty Images – iStockphoto; S. 55, 1: YinYang / Getty Images; S. 55, 2: Dmitriy Shibaev / iStockphoto.com; S. 55, 3: seen / Fotolia; S. 55, 4: wesel / Fotolia; S. 56, 30.3: PeterHermesFurian / Getty Images – iStockphoto; S. 56, 30.4: ClaraNila / Getty Images – iStockphoto; S. 57, 30.6: Mag. Hans Haimo Tentschert, Graz; S. 59, 32.1: Mag. Hans Haimo Tentschert, Graz; S. 60, 33.1: Mag. Hans Haimo Tentschert, Graz; S. 60, 33.3: Mag. Hans Haimo Tentschert, Graz; S. 62, 35.3: akg-images / picturedesk.com; S. 64, 36.2: Mag. 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Stefan Kapeller, Wien; S. 83, 50.5: Mag. Hans Haimo Tentschert, Graz; S. 83, 50.6: eclipse_images / Getty Images – iStockphoto; S. 83, 50.7: MAYR Elke / WirtschaftsBlatt / picturedesk.com; S. 84, 51.1: NASA/JPL; S. 84, 51.3: Mag. Hans Haimo Tentschert, Graz; S. 85, 51.4: Mag. Hans Haimo Tentschert, Graz; S. 85, 51.5: Silke Reents / Visum / picturedesk. com; S. 85, 51.6: Energie AG / OTS; S. 85, 51.7: NASA; S. 86, 52.1: Mag. Hans Haimo Tentschert, Graz; S. 86, 52.2: Mag. Hans Haimo Tentschert, Graz; S. 87, 53.1: Mag. Hans Haimo Tentschert, Graz; S. 87, 53.2: Fruhmann GmbH, NTL Manufacturer & Wholesaler / www.ntl.at; S. 93, 1: Antagain / Getty Images – iStockphoto; S. 93, 2: Mag. Hans Haimo Tentschert, Graz; S. 93, 3: Mag. Hans Haimo Tentschert, Graz; S. 93, 4: Hajohoos / Getty Images; S. 94, 54.3: Halfpoint / Getty Images – iStockphoto; S. 95, 55.2: Science Photo Library / picturedesk.com; S. 96, 56.3: Panos Pictures / Visum / picturedesk.com; S. 96, 56.4a: Ignard Karel Maria ten Have / Thinkstock; S. 96, 56.4b: AndreyPopov / Getty Images – iStockphoto; S. 96, 56.4c: Gilitukha / Getty Images – iStockphoto; S. 96, 56.4d: simonkr / Getty Images; S. 96, 56.4e: Gina Sanders / Fotolia; S. 97, 57.1: Mag. Gustav Breyer, Wien; S. 97, 57.2a: https://ec. europa.eu/growth/single-market/ce-marking/; S. 97, 57.2b: Österreichischer Verband für Elektrotechnik (ÖVE), Wien; S. 97, 57.2c: Wikimedia Commons; S. 97, 3: TV-yesterday / Interfoto / picturedesk. com; S. 97, 4: gerenme / Getty Images – iStockphoto; S. 98, 57.5: Mag. Hans Haimo Tentschert, Graz; S. 98, 57.6: Mag. Hans Haimo Tentschert, Graz; S. 98, 57.7: Dreef / Getty Images – iStockphoto; S. 98, 57.8: Mag. Hans Haimo Tentschert, Graz; S. 98, 57.9: Sanguis / Getty Images – iStockphoto; S. 99, 58.2: Mag. Hans Haimo Tentschert, Graz; S. 99, 58.8: Mag. Hans Haimo Tentschert, Graz; S. 100, 59.1: Mag. Hans Haimo Tentschert, Graz; S. 101, 59.5: Mag. Gustav Breyer, Wien; S. 102, 60.4: Science Photo Library / picturedesk.com; S. 103, 60.5: Urte Paaßen, www.hauswirtschaft.info; S. 103, 60.7: Achim Prill / Getty Images – iStockphoto; S. 103, 60.8: summerphotos / Getty Images – iStockphoto; S. 104, 61.1: Mag. Hans Haimo Tentschert, Graz; S. 104, 61.2: Stock Depot / Getty Images – iStockphoto; S. 104, 61.3: FOLTIN Jindrich / WirtschaftsBlatt / picturedesk.com; S. 104, 61.4: Wikimedia Commons; S. 105, 62.1: LightFieldStudios / Getty Images – iStockphoto; S. 105, 62.2: Karsten Schoene / laif / picturedesk.com; S. 105, 62.4: Stephan Zabel wakila / Getty Images; S. 106, 63.1: Mag. 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