It is the Lord Kelvin’s Water Dropper aka Lord Kelvin’s Thunderstorm, invented in the 1860s by William Thomson, 1st Baron Kelvin, the same fellow for whom the Kelvin temperature scale is named.

Earth might be creating microscopic lightning bolts—and this electrical phenomenon could have sparked the chemistry of life ...

Designed by the Greek inventor Heron, this coin-operated holy water dispenser was used in Egyptian temples to dispense water for ritual washings. Worshippers would place a coin into the machine and ...

They plan to use the model as a baseline to explore to what extent a splashing droplet might drag up and launch particles from the water pool. "Impacts of drops on liquid layers are ubiquitous ...

Scientists have discovered that water moving over surfaces generates significantly more electrical charge than previously believed, particularly when it sticks and then slips past tiny obstacles. This ...