25.2 MB (3.3 MB compressed)
2419 x 3638 pixels
20.6 x 30.7 cm ⏐ 8.1 x 12.1 in (300dpi)
CROWN COPYRIGHT / HEALTH & SAFETY LABORATORY / SCIENCE PHOTO LIBRARY CROWN COPYRIGHT / HEALTH & SAFETY LABORATORY / SCIENCE PHOTO LIBRARY
Friction test for shoes. The tester is walking down a smooth slope wearing a pair of new shoes. The inclination of the ramp can be adjusted until the shoes can no longer grip the surface. This gives an indication of the grip of the soles of the shoes.
Model release available. Property release not required.