First, the spiders release unusually large amounts of bridging silk into the air, which is then carried downwind, across the water body, establishing bridge lines.
Verification of a voltage reading is performed using a "low-impedance" voltmeter, which usually has a shunt resistor load bridging the voltmeter terminals.
The challenge lies in bridging different spatial and temporal scales: from tenths of nanometers to thousands of kilometers and from nanoseconds to years.
