This 1-meter (about 3.3 feet) grounding rod from Pollmann is perfect for creating a solid earth ground in electrical systems.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is the top section of a ...

Brazilian researchers captured on camera the brief moment when lightning rods on buildings released an upward discharge to attract incoming lightning. By Nicholas Bakalar Benjamin Franklin invented ...

A high-speed photo of lightning rods at work during an electrical storm in São José dos Campos, Brazil, is helping scientists understand how the devices compete to attract strikes and keep buildings ...

Ever seen lightning shoot upwards? If not, you’re in luck. Last year, researchers in São José dos Campos, Brazil were able to capture the exact moment that several buildings’ lightning rods reached ...