electric current passed through it कैथोडसंदीप्ति (Cathodoluminescence) - where beam of electrons impacts on a luminescent material such as a phosphor यांत्रिकसंदीप्ति
Akasaki: "P-Type Conduction in Mg-doped GaN Treated with Low-Energy Electron Beam Irradiation (LEEBI)", Jpn. J. Appl. Phys. Vol. 28, No.12, December 1989,
on the beam Archived 2017-04-16 at the वेबैक मशीन. Timmer, John (24 August 2016). "Just how dangerous is it to travel at 20% the speed of light?". Science
(३) परावर्तन का नियम (४) अपवर्तन का नियम (स्नेल का नियम) (५) प्रकशपुंज (lightbeam) की उत्क्रमगति का नियम - इसके अनुसार, किसी प्रकाश पुंज की गति को, उसकी
Serge Spitzer Trajan's Shadow, 2001, bronze, oil paint, steel, by Sean Henry Beam Walk, 1996, steel, by Cristos Gianakos Out, 2004, bronze, by Charlotte Gyllenhammar