horizontal earthquake surface waves (Rayleigh waves in particular). A career civil servant in Nanyang, Zhang Heng was also an #astronomer, #mathematician, #seismologist, hydraulic engineer, #inventor, geographer, cartographer, ethnographer, artist, #poet, philosopher, politician & literary scholar. He was a bit of a controversial figure politically, sparing over calendar reform & with rivals amongst the palace eunuchs. But both his poetry & famous inventions are still remembered. He also 🧵2/
Staff Seismologist

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Happy birthday to Danish #seismologist Inge Lehmann (1888 – 1993) who demonstrated that the Earth’s core is not a single molten sphere, but contained an inner solid core, in ‘36. She was a pioneer #womanInScience, a brilliant seismologist & lived to be 105.⁠

As she first postulated, the #earth has roughly 3 equal concentric sections: mantle, liquid outer core & solid inner core. The crust, on which we live is merely 🧵1/n

#printmaking #sciArt #geophysics #histstm #seismology #womenInSTEM

Vladimir Isaacovich Keilis-Borok (July 31, 1921 – October 19, 2013) was a Russian #mathematicalGeophysicist and #seismologist.

in particular).

A career civil servant in Nanyang, Heng was also an #astronomer, #mathematician, #seismologist, hydraulic engineer, #inventor, geographer, cartographer, ethnographer, artist, #poet, philosopher, politician & literary scholar. He was a bit of a controversial figure politically, sparing over calendar reform & with rivals amongst the palace eunuchs. But both his poetry & famous inventions are still remembered. He also improved the Chinese approximation for pi & 🧵2/n

Happy birthday to Danish #seismologist Inge Lehmann (1888 – 1993) who demonstrated that the Earth's core is not a single molten sphere, but contained an inner solid core, in ‘36. She was a pioneer #womanInScience, a brilliant seismologist & lived to be 105.⁠

As she first postulated, the #earth has roughly 3 equal concentric sections: mantle, liquid outer core & solid inner core. 🧵1/n

#printmakimg #sciArt #geophysics #histstm #MastoArt #seismology

waves (Rayleigh waves in particular).

A career civil servant in Nanyang, Zhang Heng was also an #astronomer, #mathematician, #seismologist, hydraulic engineer, #inventor, geographer, cartographer, ethnographer, artist, #poet, philosopher, politician & literary scholar. He was a bit of a controversial figure politically, sparing over calendar reform & with rivals amongst the palace eunuchs. But both his poetry & famous inventions are still remembered. 🧵2/n

A career civil servant in Nanyang, Zhang Heng was also an #astronomer, #mathematician, #seismologist, hydraulic engineer, #inventor, geographer, cartographer, ethnographer, artist, poet, philosopher, politician & literary scholar. He was a bit of a controversial figure politically, sparing over calendar reform & with rivals amongst the palace eunuchs. But both his poetry & famous inventions are still remembered. He also improved the Chinese approximation for pi & made an extensive star catalog.🧵

The #Scientist Who Decodes the Songs of #UnderseaVolcanoes
https://www.quantamagazine.org/she-decodes-quakes-from-undersea-volcanoes-and-taylor-swift-20231108/

"A #volcanologist at Western Washington University, Jackie Caplan-Auerbach is also a #seismologist, someone who uses the jiggles of #earthquakes to understand #geophysics. And it just so happens that active #volcanoes are prodigious #earthquake producers; they make as much #seismic noise as they can muster."

She Decodes Quakes From Undersea Volcanoes (and Taylor Swift) | Quanta Magazine

In the rumbles and groans of underwater volcanoes, Jackie Caplan-Auerbach finds her favorite harmonies — and clues to the Earth’s interior.

Quanta Magazine

Happy birthday to Danish #seismologist Inge Lehmann (1888 – 1993) who demonstrated that the Earth's core is not a single molten sphere, but contained an inner solid core, in ‘36. She was a pioneer #womanInScience, a brilliant seismologist & lived to be 105.⁠

As she first postulated, the #earth has roughly 3 equal concentric sections: mantle, liquid outer core & solid inner core.

1/n

#printmakimg #sciArt #geophysics #histstm #seismology #MastoArt