Illusion of Movement & Suggestion

The size of an object has its effect on the estimation of the weight by an individual. Generally, small objects will be underestimated and bigger objects will be overestimated of its size even though they are of the same weight. This velvet wooden box contains 14 cylindrical wooden weights, with brass eye atop to facilitate lifting by making use of a hook provided, wherein 11 variable weights are equal in size and height. One smaller, one bigger and one equal sized weight are provided as three different standard (wooden) weights of 55 gms. each. These three standard weights are compared with the other 11 variable weights, which ranges from 30 to 80 gms. with a progressive rise of 5 gms. in between.

This instrument is used to study the effect of suggestion on feeling of warmth. This box has a coil, which will get heated up when a secret switch is operated which is provided at the experimenter side and a set of 4 lamps and switch at the top to switch on these lamps. There is a screen in between the lights and the coil.