{"id":14080,"date":"2023-09-17T23:21:43","date_gmt":"2023-09-17T23:21:43","guid":{"rendered":"https:\/\/staging.rayzeek.com\/?p=14080"},"modified":"2023-12-26T08:44:00","modified_gmt":"2023-12-26T08:44:00","slug":"what-is-light","status":"publish","type":"post","link":"https:\/\/staging.rayzeek.com\/de\/glossary\/what-is-light\/","title":{"rendered":"Was ist Licht"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-light\">Was ist Licht<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Licht bezieht sich im Kontext der Beleuchtung auf elektromagnetische Strahlung, die f\u00fcr das menschliche Auge sichtbar ist. Es ist eine Form von Energie, die es uns erm\u00f6glicht, unsere Umgebung wahrzunehmen, und eine entscheidende Rolle bei der Beleuchtung und visuellen Wahrnehmung spielt. Licht kann von verschiedenen nat\u00fcrlichen und k\u00fcnstlichen Quellen wie Sonnenlicht, Gl\u00fchlampen und Flammen emittiert, absorbiert oder reflektiert werden.<\/p>\n<div class=\"insert_inquiry_outer_wrapper\"><h3>Suchen Sie nach bewegungsgesteuerten Energiesparl\u00f6sungen?<\/h3><p>Kontaktieren Sie uns f\u00fcr komplette PIR-Bewegungssensoren, bewegungsgesteuerte Energiesparprodukte, Bewegungsmelderschalter sowie gewerbliche Pr\u00e4senz-\/Pr\u00e4senzabwesenheitsl\u00f6sungen.<\/p><div class = \"insert_inquiry_buttons\"><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email\"><div><a href = \"mailto:info@rayzeek.com\"><p>E-Mail senden<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_email_contact\"><div><a href=\"https:\/\/www.rayzeek.com\/contact\"><p>Kontaktformular<\/p><\/a><\/div><\/div><div class = \"insert_inquiry_button_wrapper insert_inquiry_button_chat chat_jump\"><div><a href=\"#\"><p>Online-Chat<\/p><\/a><\/div><\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Die Lichtgeschwindigkeit im Vakuum ist eine fundamentale Konstante, die exakt auf 299.792.458 Meter pro Sekunde definiert ist. Dieser feste Wert dient als Referenz bei wissenschaftlichen Berechnungen. Die Lichtgeschwindigkeit kann jedoch variieren, wenn sie sich durch verschiedene transparente Substanzen bewegt, die gew\u00f6hnliche Materie enthalten. In Wasser betr\u00e4gt die Lichtgeschwindigkeit beispielsweise etwa 3\/4 ihrer Geschwindigkeit im Vakuum.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Im Laufe der Geschichte haben Wissenschaftler Experimente durchgef\u00fchrt, um die Lichtgeschwindigkeit zu messen. Erste Versuche wurden im 17. Jahrhundert von Galileo und Ole R\u00f8mer unternommen, wobei R\u00f8mer eine Geschwindigkeit von 227.000.000 Metern pro Sekunde gesch\u00e4tzt h\u00e4tte, wenn er die genaue Gr\u00f6\u00dfe der Erdbahn gekannt h\u00e4tte. Nachfolgende Experimente von Hippolyte Fizeau, L\u00e9on Foucault und Albert A. Michelson verfeinerten die Messung weiter, was zu einem pr\u00e4zisen Wert von 299.796.000 Metern pro Sekunde f\u00fchrte.<\/p>\n<div class=\"insert_portfolio_outer_wrapper\"><h3>Lassen Sie sich von den Rayzeek Bewegungssensor-Portfolios inspirieren.<\/h3><p>Nicht das Richtige gefunden? Keine Sorge. Es gibt immer alternative Wege, Ihre Anforderungen zu erf\u00fcllen. Vielleicht kann eines unserer Portfolios helfen.<\/p><div class = \"insert_portfolio_buttons\"><div class = \"insert_portfolio_button_wrapper\"><div><a href = \"https:\/\/www.rayzeek.com\/product-category\/motion-sensors\"><p>PIR-Bewegungssensoren<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/motion-sensor-switches\"><p>Bewegungssensorschalter<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/occupancy-vacancy-sensors\"><p>Pr\u00e4senzmelder<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/products\/rz050\"><p>Klimaanlagen-Bewegungssensor<\/p><\/a><\/div><\/div><div class = \"insert_portfolio_button_wrapper\"><div><a href=\"https:\/\/www.rayzeek.com\/product-category\/motion-sensor-light-strip\"><p>LED-Streifen mit Bewegungsmelder<\/p><\/a><\/div><\/div><div class = 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