Glass microspheres aren't the answer for saving Arctic sea ice

A proposal to cover Arctic sea ice with layers of tiny hollow glass spheres about the thickness of one human hair would actually accelerate sea-ice loss and warm the climate rather than creating thick ice and lowering the ...

War disturbs nature permanently, study finds

Using long-term data, researchers studied the effects of large mammal declines—caused by civil war and poaching—on the species composition of savanna ponds. Guillaume Demare conducted the research as part of his doctoral ...

The shapes of shrimp farms affect their groundwater pollution

Coastal aquaculture has grown rapidly over the past few decades, and although ocean-based food supplies have increased, concerns about the environmental impacts of aquaculture have as well. For example, research has found ...

What is pond? Study provides first data-driven definition

Nearly everyone can identify a pond, but what, exactly, distinguishes it from a lake or a wetland? A new study co-led by Cornell offers the first data-driven, functional definition of a pond and evidence of ponds' distinct ...

Ancient Mayan maize god sculpture found in Mexico

Archaeologists have uncovered a roughly 1,300-year-old sculpture representing the head of a Mayan maize god in ruins in southeastern Mexico, the National Institute of Anthropology and History said.

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Pond

A pond is a body of standing water, either natural or man-made, that is usually smaller than a lake. A wide variety of man-made bodies of water are classified as ponds, including water gardens, water features and koi ponds; all designed for aesthetic ornamentation as landscape or architectural features, while fish ponds are designed for commercial fish breeding, and solar ponds designed to store thermal energy.

Standing bodies of water such as puddles, ponds, and lakes are distinguished from a water course, such as a brook, creek, or stream via current speed. While currents in streams are more easily observed, ponds and lakes possess thermally driven microcurrents and moderate wind-driven currents. These features distinguish a pond from many other aquatic terrain features, such as stream pools and tide pools.

Some mills use the kinetic energy of the moving water in the pond to generate electricity.

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