Waves with Opposite Phases Small 320×61 Medium 640×122 Large 1024×195 Download TIFF Original 2400×457 | (72.7 KB) Description "...represents two such wave systems meeting in opposite phases." -Avery 1895 Keywords opposite, Phases, waves Galleries General Physics Source: Elroy M. Avery School Physics (New York: Sheldon and Company, 1895) 243