An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...
The parallactic refraction between the stars and the satellite is small and well determinate, except for the irregular stellar movements known as erratics.
Under the phase-contract microscope, cell multi-l ayer was shown to be a refractile sheet, which means the capacities of biomateri al to attract cell and maintain the cell attachment.
The key to understanding what that means lies with the term refraction, the ability of a transparent medium, like glass, water, or the eye to change the direction of light passing through it.
At 11: 45 the sun, by then seen only by refraction, looked like a golden disk, dispersing its last rays over this deserted continent and down to these seas not yet plowed by the ships of man.