No, the word "seismograph" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
The seismograph needle fluttered wildly during the aftershock.
Seismograph
Seis
Seis
The words 'autograph' and 'seismograph' have Greek roots. For example, the word 'autograph' comes from the Greek 'auto', as 'self'; and 'graphein', as 'to write'. The word 'seismograph' comes from the Greek 'seismo', as 'shaking' or 'shock'; and 'graphein', as 'to write'.
A seismograph is a machine for measuring and recording parameters relating to the movements of the Earth's surface caused by earthquakes or explosions.
The seismograph showed that the earthquake was very powerful.
Locating valuable resources underground
Locating valuable resources underground
Seismograph showed 7.0 on the scale. It is an instruments for measuring earthquakes.
First