This classic illusion, made famous by psychologist Joseph Jastrow, is elegantly revisited here by Father Alex.The magician presents two wooden school rulers: one marked in centimeters, the other marked in inches.He explains that the imperial system is decidedly mysterious for a French person... and immediately proves it:Placed side by side, 15 cm seem to be equal to 6 inches.By simply reversing the position of the rulers, not only do they visually change in size, but this time 7 inches appear to correspond to 9 cm.To conclude, the magician reveals that the two rulers are in fact exactly the same length.A strong, clear, and immediate visual illusion that never fails to surprise and delight.ContentsA beautiful wooden box, specially crafted for this effectTwo wooden rulers: one marked in centimeters, one marked in inchesAn instructional video in French, in which Father Alex explains the principle behind the trick
