�y��vlog

Interpolar, in-tėr-pō′lar, adj. situated between or connecting the poles, as of a galvanic battery.

He succeeded, calling in the aid of his discovery of the effect of a long interpolar wire wrapped around a piece of soft iron.

Exciting this electromagnet with a certain battery, it was found that the attraction was greatest when the shoes were pushed to about 15 millimeters, or about one-quarter of the interpolar distance, apart.

This appears to have been subsequently forgotten, as we find later physicists questioning the possibility of the spark leaping over any interpolar distance.