Optics.
radiometer (def. 1).
[ 1880-85; after Sir W. CROOKES ]
CROOKES RADIOMETER
Meaning of CROOKES RADIOMETER in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012
Optics.
radiometer (def. 1).
[ 1880-85; after Sir W. CROOKES ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012