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Ele Willoughby, PhD
Ele Willoughby, PhD
@minouette@spore.social  路  activity timestamp 2 weeks ago

Another of scientists without a known birthday: my #linocut of ancient Chinese Han Dynasty #polymath & statesman Zhang Heng (78-139) who invented a seismoscope (simplified seismometer which does not make a record of earth motions) to detect distant earthquakes & indicate their direction, 2000 years ago! Here with a reconstruction of his seismoscope, schematic of how it might have worked & 馃У

https://minouette.etsy.com/listing/1383517882

#histsci #printmaking #ZhangHeng #EarthScience #seismology #mastoArt

My linocut print of Zhang Heng in Han robe in blue ink on cream coloured washi paper with his seismoscope in bronze ink on the left and a cross-section schematic on the right in bronze ink with moving balls in red. Above in pale pink at chest level is a waveform of a horizontal surface wave (especially Rayleigh waves) is overprinted on top. The seismoscope is shown as knee-high urn, cylindrical with dome top with small sculpture birds on top. Midway up are a circle of dragon heads with balls in their mouth (4 are visible). At the base are 4 visible open-mouthed frogs. In the schematic you can see a pendulum moves and released a ball which goes in one of the radiating troughs abs hits a lever which released the tongue and ball in one dragon mouth which drops a ball (after Feng Rui et al, 2014)
My linocut print of Zhang Heng in Han robe in blue ink on cream coloured washi paper with his seismoscope in bronze ink on the left and a cross-section schematic on the right in bronze ink with moving balls in red. Above in pale pink at chest level is a waveform of a horizontal surface wave (especially Rayleigh waves) is overprinted on top. The seismoscope is shown as knee-high urn, cylindrical with dome top with small sculpture birds on top. Midway up are a circle of dragon heads with balls in their mouth (4 are visible). At the base are 4 visible open-mouthed frogs. In the schematic you can see a pendulum moves and released a ball which goes in one of the radiating troughs abs hits a lever which released the tongue and ball in one dragon mouth which drops a ball (after Feng Rui et al, 2014)
My linocut print of Zhang Heng in Han robe in blue ink on cream coloured washi paper with his seismoscope in bronze ink on the left and a cross-section schematic on the right in bronze ink with moving balls in red. Above in pale pink at chest level is a waveform of a horizontal surface wave (especially Rayleigh waves) is overprinted on top. The seismoscope is shown as knee-high urn, cylindrical with dome top with small sculpture birds on top. Midway up are a circle of dragon heads with balls in their mouth (4 are visible). At the base are 4 visible open-mouthed frogs. In the schematic you can see a pendulum moves and released a ball which goes in one of the radiating troughs abs hits a lever which released the tongue and ball in one dragon mouth which drops a ball (after Feng Rui et al, 2014)
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