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Czy wiesz dlaczego te rzeczy są właśnie w takich kolorach? (10 obrazków)

Więcej informacji:

  • The use of color schemes for everyday objects is often dictated by practicality and historical events, with yellow taxis and yellow school buses serving as prime examples due to visibility and safety concerns.
  • Traffic lights originally used red and white, but added green and later yellow to prevent confusion and enhance visibility; yellow and green were chosen based on wavelength considerations.
  • The color red for fire trucks and fire hydrants has varied explanations, including cost-effectiveness and the need for visibility, although more visible colors like yellow are now used frequently.
  • Airplanes are predominantly white to save costs on paint and maintenance, reflect heat, and enhance safety inspections, while toilet paper is bleached white for softness and perceived cleanliness.
  • Zebra crossings and soccer balls use black and white to improve visibility for drivers and television viewers respectively, stemming from safety needs and technological advancements in broadcasting.

Key historical influences:

  • The 1939 conference that determined the yellow color for U.S. school buses.
  • John Hertz's research in 1915 contributing to the adoption of yellow for taxis.
  • The adoption of black and white soccer balls for better visibility on black-and-white TVs during the World Cup 1970.
  • Jim Callaghan's 1951 description of the black-and-white pedestrian crossing as a 'zebra.'

Observations on practicality:

  • The use of carbon black in tires since 1917 to address durability and performance issues with natural rubber.
  • The efficiency of white airplane exteriors in lowering heat absorption and aiding in visual inspections.

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