Shades of Win.

multimedia nonsense

231 notes

smithsonianlibraries:

detail from Hoover : the story of a crusade. (1926)

The marks on the carpet show how long each stroke should be and a metronome guides her in making a given number of strokes per minute. By measuring her carbon—dioxide exhalation while she works, the amount of energy required to sweep with different devices and in different ways—slow, fast, long strokes, short strokes, etc.—is accurately determined. Such tests were made to determine Hoover technique and they demonstrated that the Hoover offersthe least fatiguing way of cleaning carpets and rugs

smithsonianlibraries:

detail from Hoover : the story of a crusade. (1926)

The marks on the carpet show how long each stroke should be and a metronome guides her in making a given number of strokes per minute. By measuring her carbon—dioxide exhalation while she works, the amount of energy required to sweep with different devices and in different ways—slow, fast, long strokes, short strokes, etc.—is accurately determined. Such tests were made to determine Hoover technique and they demonstrated that the Hoover offers
the least fatiguing way of cleaning carpets and rugs

(via mudwerks)

109 notes

blue1887:


Afterimage is a physiological response created when the eye is exposed to a concentrated burst of color, triggering the optic nerve to produce a brief flash of its complementary. Creating surgical scrubs and theater operating robes that are blue-green in color prevents doctors from seeing this afterimage when they look away from the wound they are operating on, since the optic nerve already recognizes it as the complementary color.

Textile Futures: Fashion, Design and Technology

blue1887:

Afterimage is a physiological response created when the eye is exposed to a concentrated burst of color, triggering the optic nerve to produce a brief flash of its complementary. Creating surgical scrubs and theater operating robes that are blue-green in color prevents doctors from seeing this afterimage when they look away from the wound they are operating on, since the optic nerve already recognizes it as the complementary color.

Textile Futures: Fashion, Design and Technology

(Source: djohariah, via witchpack)