Why Does the Smaller Box Feel Heavier? (Size-Weight Illusion)

Two boxes weigh the same, yet the smaller one feels heavier in this invented game. Can steadier lifting settle the feeling? A friend's fairground guessing game puts a felt difference beside a level balance. Follow the puzzle from Woodworth's historical lifting explanation to a later experiment that recorded forces and asked about heaviness separately. 📖 Book: Psychology: A Study of Mental Life by Robert Sessions Woodworth (1921), Chapter XVII, Perception, pp.459–460, size-weight illusion. Free to read: https://www.gutenberg.org/ebooks/31382 Chapters 0:00 The Smaller Box 0:51 Woodworth's Two Boxes 1:50 Your Hands Get Used 2:42 Two Records Disagree 3:38 Keep Both Answers Sources Flanagan, J. R., and Beltzner, M. A. (2000). Independence of perceptual and sensorimotor predictions in the size-weight illusion. Nature Neuroscience, 3, 737–741. https://doi.org/10.1038/76701 Further context: Flanagan, J. R., Bittner, J. P., and Johansson, R. S. (2008). Experience can change distinct size-weight priors engaged in lifting objects and judging their weights. Current Biology, 18, 1742–1747. https://doi.org/10.1016/j.cub.2008.09... The stall, people, dialogue and level balance are invented illustrations, not measurements or a replicated experiment. Woodworth's lifting explanation is historical; the later finding does not establish a complete cause or an unchangeable feeling. No guaranteed effect or training method is offered. 💬 Would you describe what felt heavier differently from what weighed more? Headlore is psychology, told by stick figures. Subscribe for more:    / @headlore   For education, not medical advice. #Psychology #Perception #Headlore