Hitos de la tecnología

By jordanriveron
  • 9999 BCE

    The first tools

    The first tools
    3.3 million years ago the first tools were made. Sharp flakes of stone were used as knives. Larger unshaped stones were used as hammers. These tools have been uncovered at Lake Turkana in Kenya
  • 4000 BCE

    Sailing

    Sailing
    The first sailing ships were used on the Nile River. These ships used oars for navigation
  • 1200 BCE

    iron

    iron
    production of iron became widespread. Iron was much more abundant than copper and tin
  • 1000 BCE

    fire

    fire
    fire was first made by Homo sapiens. Evidence of burnt materials can be found in caves
  • 850 BCE

    gunpowder

    China invented gunpowder as a way to propel rockets attatched to arrows
  • 950

    windmill

    windmill
    5000 years after the first sailing ships, the wind was used to operate a mill. The first windmills were in Persia.
  • 1044

    compass

    compass
    The first mention of a windmill was in a Chinese book in 1044. The compass was a way for soldiers to find their way back when the sky was to foggy to see the stars
  • 1250

    mechanical clock

    mechanical clock
    The first mechanical clocks appeared in Europe and were used in cathedrals to mark the time when services would be held.

  • photography

    photography
    In 1826 or 1827, he made an eight-hour-long exposure of the courtyard of his house, the first known photograph.

  • telephone

    telephone
    . Alexander Graham Bell made the first telephone call, on March 10, 1876, when he asked his assistant Tom Watson to come to him: “Mr Watson—come here—I want to see you.”