11. The Bohnenberger electrometer , developed by dry pile. 12. The church reformulated the disclaimer into : The Hubbard electrometer is a religious artifact. 13. A device known as a " Benndorf electrometer " is used for atmospheric electrical measurements. 14. Marie Curie began her investigations by testing a uranium ore called pitchblende with an electrometer . 15. He invented an improved gold-leaf electrometer that was used widely for many years. 16. Some mechanic electrometers were housed inside a cage often referred to as a bird cage . 17. Kelvin utilised similar photographic means for his quadrant electrometer ( see above ) in the 1860s. 18. This correlates to physical phenomenon since the reference electrode is connected to a high impedance electrometer . 19. After a few months, Waller successfully recorded the first human electrocardiography using the capillary electrometer . 20. Developed by Lord Kelvin, this is the most sensitive and accurate of all the mechanical electrometers .
