ALL RIGHTS RESERVED
Image that appeared on the cover of Nature, December 7, 1973.
ALL RIGHTS RESERVED
Negative image of a disk with 20 black radial stripes generated by photographing the disk when rapidly rotating through a propeller rotating at the appropriate speed.

 

 

  • L. Glass. Moiré effect from random dots. Nature 223, 578580 (1969)
  • L. Glass. Effect of blurring on the perception of a simple geometric pattern. Nature 228, 1341-1342 (1970).pdf file
  • L. Glass, R. Perez. Perception of random dot interference patterns. Nature 246, 360-362 (1973). pdf file
  • R.M. Shymko, L. Glass. Negative images in stroboscopy. Optical Engineering 14, 506-507 (1975). pdf file (p.1) pdf file (p.2)
  • L. Glass, E. Switkes. Pattern recognition in humans: Correlations which cannot be perceived. Perception 5, 67-72 (1976).pdf file
  • L. Glass. Looking at dots. Mathematics Intelligencer 24, Number 4, 37-43 (2002). pdf file
  • P. Martineau, M. Aguilar, L. Glass. Predicting perception of the wagon wheel illusion. Physical Review Letters, 103:2 (2009). pdf file
  • L. Glass, M. A. Smith. Glass patterns. Scholarpedia, 6(8):9594 (2011).