Data collected by satellites, drones, radars and microscopes provide a goldmine of information to better understand our environment. And when these data are coupled with artificial intelligence (AI), they can unlock the secrets ...
Environment
Jul 23, 2024
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1
A new study of radar experiment data from the Cassini-Huygens mission to Saturn has yielded fresh insights related to the makeup and activity of the liquid hydrocarbon seas near the north pole of Titan, the largest of Saturn's ...
Planetary Sciences
Jul 16, 2024
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197
Anchoring the boat in a sandbar, research scientist Morgan Gilmour steps into the shallows and is immediately surrounded by sharks. The warm waters around the tropical island act as a reef shark nursery, and these baby biters ...
Plants & Animals
Jul 10, 2024
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9
A new study published today in Current Biology, "Oceanic Seabirds Chase Tropical Cyclones," reveals that the rare Desertas Petrels (Pterodroma deserta), a wide-ranging seabird in the North Atlantic, exhibit unique foraging ...
Plants & Animals
Jul 9, 2024
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15
Lunar swirls are light-colored, sinuous features on the moon's surface, bright enough to be visible from a backyard telescope. Some people think they look like the brushstrokes in an abstract painting. But these are not mere ...
Planetary Sciences
Jul 1, 2024
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62
Lucy Ray has one word to describe how most fields of corn and hay an hour east of Atlanta in Morgan County look right now: "crispy."
Environment
Jul 1, 2024
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1
A research team led by Prof. Kong Lingtao from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has developed an innovative material for the efficient removal of fluoride ions from water. This newly-developed ...
Materials Science
Jun 25, 2024
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0
The Aral Sea, located in Central Asia, has been shrinking in surface area due to climate change and human activities. This shrinkage has caused a regional ecological crisis, significantly affecting the key ecosystem services ...
Earth Sciences
Jun 24, 2024
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8
Tri-layer may be better than bi-layer for manufacturing, improving the speed and capacity of electrochemical and electrocatalytic devices.
Nanomaterials
Jun 21, 2024
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419
Fingerprint detection is one of the most important techniques in forensic investigation. When fingerprints are dusted with a carbon-based powder, the material will adhere to the moisture and grease left behind by the unique ...
Nanomaterials
Jun 17, 2024
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102
Surface area is the measure of how much exposed area a solid object has, expressed in square units. Mathematical description of the surface area is considerably more involved then the definition of arc length of a curve. For polyhedra (objects with flat polygonal faces) the surface area is the sum of the areas of its faces. Smooth surfaces, such as a sphere, are assigned surface area using their representation as parametric surfaces. This definition of the surface area is based on methods of infinitesimal calculus and involves partial derivatives and double integration.
General definition of surface area was sought by Henri Lebesgue and Hermann Minkowski at the turn of the twentieth century. Their work led to the development of geometric measure theory which studies various notions of surface area for irregular objects of any dimension. An important example is the Minkowski content of a surface.
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