News tagged with core
From the Earth to the Moon: Resolving estimates of proto-Earth accretion with lunar-forming impact
(PhysOrg.com) -- One of the more challenging fields of scientific inquiry is planetary formation – and most relevant is that of our own Earth and Moon. The current view, based on chronometry (scientific ...
Nov 14, 2011 |
5 / 5 (8) |
16
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Earth's core rotating faster than rest of the planet but slower than previously believed
New research gives the first accurate estimate of how much faster the Earth's core is rotating compared to the rest of the planet.
Space & Earth / Earth Sciences
Feb 20, 2011 |
4.3 / 5 (27) |
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Nvidia says Kal-El chip will have five cores
(PhysOrg.com) -- Nvidia says its upcoming Kal-El chip (Tegra 3) will have five cores, not four. The news appeared this week when the Santa Clara company announced a white paper describing the architecture of this system-on-a-chip for mobile computing. ...
Sep 22, 2011 |
4.9 / 5 (7) |
10
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Touchscreen table computer SUR40 starts pre-orders
(PhysOrg.com) -- Microsoft and Samsung have announced the Microsoft Surface computer, called SUR40, as available for preorder, through the Samsung website, in 23 countries. The unique multi-touch screen is ...
Nov 21, 2011 |
5 / 5 (5) |
11
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Scientists core into California's Clear Lake to explore past climate change
(Phys.org) -- University of California, Berkeley, scientists are drilling into ancient sediments at the bottom of Northern California's Clear Lake for clues that could help them better predict how today's ...
Space & Earth / Earth Sciences
May 03, 2012 |
5 / 5 (2) |
16
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Rogue stars ejected from the galaxy are found in intergalactic space
It's very difficult to kick a star out of the galaxy.
Apr 30, 2012 |
4.8 / 5 (13) |
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Jupiter's melting heart sheds light on mysterious exoplanet
Scientists now have evidence that Jupiter's core has been dissolving, and the implications stretch far outside of our solar system.
Mar 22, 2012 |
4.6 / 5 (28) |
11
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NASA's Chandra sees remarkable outburst from old black hole
An extraordinary outburst produced by a black hole in a nearby galaxy has provided direct evidence for a population of old, volatile stellar black holes. The discovery, made by astronomers using NASA's Chandra ...
Apr 30, 2012 |
4.3 / 5 (7) |
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Increasing processor efficiency by 'shutting off the lights'
There was a time when a laptop could weigh 10 pounds and still sell—a time when a cell phone was larger than a pocket—and a time when an iPod only played music.
Feb 28, 2011 |
4.7 / 5 (18) |
5
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Earth's inner core is melting... and freezing
The inner core of the Earth is simultaneously melting and freezing due to circulation of heat in the overlying rocky mantle, according to new research from the University of Leeds, UC San Diego and the Indian ...
Space & Earth / Earth Sciences
May 18, 2011 |
4.6 / 5 (13) |
10
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Physicists take new look at the atom
(PhysOrg.com) -- University of Arizona physicists have discovered a new way to measure how single atoms interact with a surface. Their findings help develop nanotechnology and test new theories about the internal ...
Jan 17, 2011 |
4.5 / 5 (23) |
14
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Fastest sea-level rise in two millennia linked to increasing temperatures
(PhysOrg.com) -- An international research team including University of Pennsylvania scientists has shown that the rate of sea-level rise along the U.S. Atlantic coast is greater now than at any time in the ...
Space & Earth / Earth Sciences
Jun 20, 2011 |
4 / 5 (17) |
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New study indicates carbon release to atmosphere ten times faster than in the past
The rate of release of carbon into the atmosphere today is nearly 10 times as fast as during the Paleocene-Eocene Thermal Maximum (PETM), 55.9 million years ago, the best analog we have for current global warming, according ...
Space & Earth / Earth Sciences
Jun 05, 2011 |
3.4 / 5 (11) |
7
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Earth's outer core deprived of oxygen: study
The composition of the Earth's core remains a mystery. Scientists know that the liquid outer core consists mainly of iron, but it is believed that small amounts of some other elements are present as well. Oxygen ...
Space & Earth / Earth Sciences
Nov 23, 2011 |
3.3 / 5 (10) |
12
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Climate played big role in Vikings' disappearance from Greenland
The end of the Norse settlements on Greenland likely will remain shrouded in mystery. While there is scant written evidence of the colony's demise in the 14th and early 15th centuries, archaeological remains ...
Other Sciences / Archaeology & Fossils
May 30, 2011 |
4.3 / 5 (7) |
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Eudicots
Eudicots and Eudicotyledons are botanical terms introduced by Doyle & Hotton (1991) to refer to a monophyletic group of flowering plants that had been called tricolpates or non-Magnoliid dicots by previous authors. The term means, literally, "true dicotyledons" as it contains the majority of plants that have been considered dicotyledons and have typical dicotyledonous characters. The term "eudicots" has been widely adopted to refer to one of the two largest clades of angiosperms (constituting over 70% of angiosperm species), monocots being the other. The remaining dicots are sometimes referred to as paleodicots but this term has not been widely adopted as it does not refer to a monophyletic group.
A large number of familiar plants are eudicots. A few are forget-me-not, cabbage, apple, dandelion, buttercup, maple and macadamia.
Another name for the eudicots is tricolpates, a name which refers to the structure of the pollen. The group has tricolpate pollen, or forms derived from it. These pollen have three or more pores set in furrows called colpi. In contrast, most of the other seed plants (that is the gymnosperms, the monocots and the paleodicots) produce monosulcate pollen, with a single pore set in a differently oriented groove called the sulcus. The name "tricolpates" is preferred by some botanists in order to avoid confusion with the dicots, a non-monophyletic group (Judd & Olmstead 2004).
The name eudicots (plural) is used in the APG system, of 1998, and APG II system, of 2003, for classification of angiosperms. It is applied to a clade, a monophyletic group, which includes most of the (former) dicotyledons.
For more information about Eudicots, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
