Tension at the surface of sea urchin eggs on the basis of "liquid-drop" concept.
D000818:Animals; D002462:Cell Membrane / Q000502:physiology; D002498:Centrifugation; D004548:Elasticity; D004625:Embryo, Nonmammalian / Q000166:cytology / Q000502:physiology; D005260:Female; D008433:Mathematics; D008722:Methods; D010063:Ovum / Q000166:cytology / Q000502:physiology*; D012617:Sea Urchins; D013500:Surface Tension; D013696:Temperature; D014783:Viscosity