News tagged with core
Wind shifts may stir CO2 from Antarctic depths
Natural releases of carbon dioxide from the Southern Ocean due to shifting wind patterns could have amplified global warming at the end of the last ice age--and could be repeated as manmade warming proceeds, ...
Space & Earth / Earth Sciences
Mar 12, 2009 |
4.2 / 5 (70) |
6
Global warming: Our best guess is likely wrong
No one knows exactly how much Earth's climate will warm due to carbon emissions, but a new study this week suggests scientists' best predictions about global warming might be incorrect.
Space & Earth / Earth Sciences
Jul 14, 2009 |
4.6 / 5 (49) |
54
Geologist discovers pattern in Earth's long-term climate record
In an analysis of the past 1.2 million years, UC Santa Barbara geologist Lorraine Lisiecki discovered a pattern that connects the regular changes of the Earth's orbital cycle to changes in the Earth's climate. ...
Space & Earth / Earth Sciences
Apr 06, 2010 |
4.6 / 5 (30) |
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Global warming likely to be amplified by slow changes to Earth systems
Researchers studying a period of high carbon dioxide levels and warm climate several million years ago have concluded that slow changes such as melting ice sheets amplified the initial warming caused by greenhouse ...
Space & Earth / Earth Sciences
Dec 20, 2009 |
2.8 / 5 (49) |
59
Moore's Law Marches on at Intel
Intel President and CEO Paul Otellini today displayed a silicon wafer containing the world's first working chips built on 22nm process technology. The 22nm test circuits include both SRAM memory as well as ...
Sep 22, 2009 |
4.3 / 5 (30) |
10
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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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) |
17
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Previously Unknown Volcanic Eruption Helped Trigger Cold Decade
(PhysOrg.com) -- A team of chemists from the U.S. and France has found compelling evidence of a previously undocumented large volcanic eruption that occurred exactly 200 years ago, in 1809.
Space & Earth / Earth Sciences
Oct 29, 2009 |
4.3 / 5 (27) |
9
Scientists detect huge carbon 'burp' that helped end last ice age
(PhysOrg.com) -- Scientists have found the possible source of a huge carbon dioxide 'burp' that happened some 18,000 years ago and which helped to end the last ice age.
Space & Earth / Earth Sciences
May 27, 2010 |
3.7 / 5 (31) |
18
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Scientists squeeze more than 1,000 cores on to computer chip
(PhysOrg.com) -- Scientists at the University of Glasgow have created an ultra-fast 1,000-core computer processor.
Jan 04, 2011 |
4.8 / 5 (24) |
14
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What keeps the Earth cooking?
What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes ...
Jul 17, 2011 |
4.6 / 5 (24) |
50
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Mysteriously warm times in Antarctica
(PhysOrg.com) -- A new study of Antarctica's past climate reveals that temperatures during the warm periods between ice ages (interglacials) may have been higher than previously thought. The latest analysis ...
Space & Earth / Earth Sciences
Nov 18, 2009 |
4.2 / 5 (26) |
31
Marine Scientist Finds 'Little Ice Age' Had Dramatic Effect on Gulf
(PhysOrg.com) -- More than 350 years ago, the temperatures in northern Europe dropped dramatically in an event known as the “Little Ice Age.” Now - deep below the waters of the Gulf of Mexico and buried in ...
Space & Earth / Earth Sciences
Feb 22, 2010 |
4.7 / 5 (23) |
25
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How old is the Earth's core? Maybe older than you thought
(PhysOrg.com) -- Another discovery by a Michigan Technological University researcher could send shockwaves across the world of earth science.
Space & Earth / Earth Sciences
Nov 12, 2011 |
4.7 / 5 (23) |
45
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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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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.
