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Ancient Chinese Inventions

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Ancient Chinese Inventions World Cultures Sericulture (Silk Production) Legend says that around 2700 BCE, the Empress Hsi Ling Shi had a silkworm cocoon fall into her ... – PowerPoint PPT presentation

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Title: Ancient Chinese Inventions


1
Ancient Chinese Inventions
  • World Cultures

2
Sericulture (Silk Production)
  • Legend says that around 2700 BCE, the Empress Hsi
    Ling Shi had a silkworm cocoon fall into her hot
    tea. As she watched the stands of fiber unravel,
    she had a vision of how to harvest and weave the
    threads into silk.
  • Making Silk

3
Decimal System
  • An example of how the Chinese used the decimal
    system appears in a transcription from the 13th
    century BCE, in which '547 days' is written 'Five
    hundred plus four decades plus seven of days'.

4
The Seismograph
  • Earthquakes had long plagued China. Chang Heng, a
    scientist, mathematician and inventor designed
    the first seismograph around 132 CE, a bronze
    vessel with an inverted weighted bob in the
    center which would release a small bronze ball
    through one of eight grooved openings when a
    tremor caused the bob to sway.

5
Replica of Didong Yi, the world's first
seismograph.
6
Paper
  • The invention of paper from hemp fibers dates to
    the second century BCE. The oldest surviving
    piece of paper was found in a tomb near Xian and
    dates from between the years 140 and 87 BCE.

7
Lacquer ware
  • Lacquer dates from the 13th century BCE. Lacquer
    is a plastic varnish that has great powers of
    preservation, strength and durability (like
    plastic). The Chinese obtained lacquer by tapping
    lacquer trees and used it for furniture, screens,
    coating cooking utensils and making weapon
    accessories.

8
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9
Rockets and multi-staged rockets
  • Invented around 1150 CE when a bamboo stick was
    attached to a cluster of fireworks. The stick was
    fitted with an arrowhead (sometimes coated with
    poison) and a balancing weight and was lit from a
    frame shaped like a dragon or other type of
    launcher box.
  • Multistage rockets were rigged so that the rear
    fuses for the second stage of the rocket would
    light once the front stage had burnt out.

10
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11
Horse collar or Trace
  • By the fourth century BCE, the Chinese had
    invented the trace harness. This harness worked
    by means of a breast strap which allowed a horse
    to exert itself and bear pressure on the chest
    bone. Prior to this invention, horses were made
    to wear throat-and-girth harnesses, which
  • severely choked the animal as it tried to
    pull.

12

13
The Abacus
  • By the 14th century the abacus was in common use.
    The abacus is a wooden frame with a horizontal
    bar that divides the upper section of the frame
    from the rest. Columns of vertical wood rods hold
    counting beads. The counting beads are moved over
    to represent the units, tens, hundreds, thousands
    and so on.

14
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15
What is this?
16
Compass
  • The spoon or ladle is of magnetic lodestone, and
    the plate is of bronze. The circular center
    represents Heaven, and the square plate
    represents Earth. The handle of the spoon points
    south. The spoon is a symbolic representation of
    the Great Bear. The plate bears Chinese
    characters which denote the eight main directions
    of north, northeast, east, southeast, south,
    southwest, west, northwest, and symbols from the
    I Ching oracle books which were correlated with
    directions. Separately marked are the finer
    gradations of twenty-four compass points, and
    along the outermost edge are the twenty-eight
    lunar mansions.

17
Wheelbarrow
18
Barbed wire being transported by a traditional
Chinese wheelbarrow near Shanghai in 1938. This
type, with the large central wheel, can be pulled
from the front as well as pushed from behind, and
can carry more than two tons-The Genius of China
19
Kites

20
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Video
Chinese Inventions
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