50.0 MB (2.9 MB compressed)
3760 x 4645 pixels
31.8 x 39.4 cm ⏐ 12.5 x 15.5 in (300dpi)
SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY
Quartz crystal oscillator from a watch. This tuning fork-shaped crystal vibrates at a specific frequency when exposed to an alternating electric current. Such crystals are used as timers in quartz watches. The interaction of the electrical and mechanical properties of a material is known as the piezoelectric effect.
Model release not required. Property release not required.