Neues Mittwochs-Wasn-Dasn (Aufloesung)

Tjoar, das Dingsi wurde von Zhang Heng erfunden und er hat damit ein echtes Problem erkannt. Es handelt sich um ein…




To indicate the direction of a distant earthquake, Zhang’s device dropped a bronze ball from one of eight tubed projections shaped as dragon heads; the ball fell into the mouth of a corresponding metal object shaped as a toad, each representing direction in which the seismic wave was travelling. His device had eight mobile arms (eight directions) connected with cranks having catch mechanisms at the periphery. When tripped, a crank and right angle lever would raise a dragon head and release a ball supported by the lower jaw of the dragon head.

Möchtest du dazu määhen?