Volta the electrifying physicist

5. Other inventions and research
Volta's other important studies concerned natural or atmospheric electricity.
We should note that many of his innovations in measuring electricity were born from those studies. One was the use of a heat source to increase the electrometers’ sensitivity.
“As winter was approaching, I discovered the tremendous influence a candle or any little flame has when applied to the top of the conductor [exploring atmospheric electricity, in electrical contact with the electrometer]”.