68.3 MB (68.0 MB compressed)
5983 x 3992 pixels
50.5 x 33.8 cm ⏐ 19.9 x 13.3 in (300dpi)
KARL GAFF / SCIENCE PHOTO LIBRARY KARL GAFF / SCIENCE PHOTO LIBRARY
Bubbles in sucrose and zinc sulphate. Differential interference contrast light micrograph of bubbles in a liquid form of the sugar sucrose, with crystals of zinc sulphate also present. The sucrose has been heated and melted to form a viscous liquid. The fluid flowing around and in the wake of the bubbles is smooth and laminar. Otherwise invisible, the flow is made visible here through a technique called differential interference contrast. Zinc sulphate is used as a dietary supplement to treat zinc deficiency. Magnification: x25 when printed at 10 centimetres wide.
Model release not required. Property release not required.