Refractive surgery. /
Basic refraction techniques. /
Geodetic refraction : effects of electromagnetic wave propagation through the atmosphere /
Meetings and discussions /
Instant discussions /
Discussions of the Faraday Society.
4 millions discuss /
Discussions about movie /
Discussions that work : task-centred fluency practice /
Discussion starters : speaking fluency activities for advanced ESL/EFL students /
Literature for discussion : a reader for advanced students of English as a second language /
Youth reporters discuss "problem" Drugs /
Discussion on a unit hydrograph study. Paper No. 6433, A unit hydrograph study, with particular reference to British catchments /
Into the light /
Lighting /
Lights. 2014/2015
Lighting.
Discussions on refraction of light /