The Magnetics Notebooks detail, in drawings and words, how people’s emotions are contagious and broadly determined by the earth’s magnetic cycles. In one of the notebooks, called the Statistical Notebook, historical data show the correlation. Michael Fiorello eventually placed the toy train in the attic, lubricated its tracks, put the right amount of gadolinium and mercury on it and recorded its movements.
helobiae 
Gadolinium … Gd64 … rare earth … rare stories made of Iridium
Absolutely loved the illustration!!
Amazing drawing – as always – and the story becomes even more intriguing …