Robert John Strutt, 4th Baron Rayleigh FRS (28 August 1875 – 13 December 1947) was a British peer and physicist. He discovered "active nitrogen" and was the first to distinguish the glow of the night sky.
Robert John Strutt, 4. Baron Rayleigh, (* 28. August 1875 in Terling Place bei Witham (Essex); † 13. Dezember 1947 ebenda) war ein britischer Physiker. (de)
Robert John Strutt, 4th Baron Rayleigh FRS (28 August 1875 – 13 December 1947) was a British peer and physicist. He discovered "active nitrogen" and was the first to distinguish the glow of the night sky. (en)
Robert John Strutt, 4º barone di Rayleigh , è stato un fisico inglese. (it)
Robert John Strutt (28 sierpnia 1875 w Terling Place w Esseksie - 13 grudnia 1947) – brytyjski arystokrata i profesor fizyki, najstarszy syn słynnego fizyka i laureata Nagrody Nobla Johna Strutta, 3. barona Rayleigh i Evelyn Balfour, córki Jamesa Maitlanda Balfoura. (pl)