Beavers are some of the world's most prolific ecosystem engineers, creating, maintaining and radically altering wetlands almost everywhere they live. But what, if anything, might control this engineering by beavers and influence ...
Plants & Animals
Nov 13, 2020
0
478
Primitive ponds may have provided a suitable environment for brewing up Earth's first life forms, more so than oceans, a new MIT study finds.
Earth Sciences
Apr 12, 2019
22
1321
An elementary school science activity asks children who have each been assigned a wetland plant or animal to connect themselves with string and tape to other "organisms" their assigned plant or animal interacts with in some ...
Ecology
Jun 22, 2012
1
0
(PhysOrg.com) -- Sometimes when people talk about solar energy, they tacitly assume that we're stuck with some version of the silicon solar cell and its technical and cost limitations. Not so.
Materials Science
Nov 29, 2011
1
0
(PhysOrg.com) -- Scientists in Canada noticed pond snails spent around 10 percent of their time attached to the side of their tank with their tentacles partly withdrawn, their shells hanging away from their bodies, and with ...
(PhysOrg.com) -- A seven-year experiment shows that pond communities bear the imprint of random events in their past, such as the order in which species were introduced into the ponds. This finding locates one of the wellsprings ...
Plants & Animals
May 27, 2010
1
0
(PhysOrg.com) -- Like most animals, snails have either left- or right-handed asymmetry (chirality), both internally and externally, and the handedness is hereditary. A new study has for the first time found that handedness, ...
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 ...
Earth Sciences
Oct 5, 2022
2
67
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 ...
Ecology
Jul 5, 2022
0
38
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.
Archaeology
Jun 2, 2022
1
2093
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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