43.8 MB (7.5 MB compressed)
4736 x 3232 pixels
40.1 x 27.4 cm ⏐ 15.8 x 10.8 in (300dpi)
ALEXANDRE DOTTA / SCIENCE PHOTO LIBRARY ALEXANDRE DOTTA / SCIENCE PHOTO LIBRARY
Demonstration showing dipping compass made of bottle cap and needle next to a real one.
Model release not required. Property release not required.