marcel duchamp – notes on the infra-slim – c.1945

a transformer designed to utilise the slight, wasted energies such as:
the excess of pressure on an electric switch
the exhalation of tobacco smoke
the growth of hair, of other body hair and of the nails
the fall of urine or excrement
movements of fear, astonishment, boredom, anger
dropping of tears
demonstrative gestures of hand, feet, nervous ticks
forbidding glances
falling over with surprise
stretching, yawning, sneezing
ordinary spitting and of blood
unruly hair, cowlicks
the sound of nose-blowing, snoring
whistling, singing
sighs, etc [...]