News tagged with hypothesis
Scientists: No link cloud coverage and global warming
With the U.S. Congress beginning to consider regulations on greenhouse gases, a troubling hypothesis about how the sun may impact global warming is finally laid to rest.
Space & Earth / Earth Sciences
May 11, 2009 |
4.1 / 5 (89) |
35
Four reasons why the quantum vacuum may explain dark matter
(PhysOrg.com) -- Earlier this year, PhysOrg reported on a new idea that suggested that gravitational charges in the quantum vacuum could provide an alternative to dark matter. The idea rests on the hypothesis that particles ...
Nov 28, 2011 |
5 / 5 (67) |
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Scientists find errors in hypothesis linking solar flares to global temperature
(PhysOrg.com) -- The field of climate science is nothing if not complex, where a host of variables interact with each other in intricate ways to produce various changes. Just like any other area of science, ...
Apr 07, 2010 |
3.6 / 5 (49) |
81
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The Secret of Life May Be As Simple As What Happens Between the Sheets -- Mica Sheets
(PhysOrg.com) -- That age-old question, "where did life on Earth start?" now has a new answer. If the life between the mica sheets hypothesis is correct, life would have originated between sheets of mica that ...
Aug 06, 2010 |
4 / 5 (40) |
265
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Evolution may take giant leaps
(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...
Dec 11, 2009 |
4.5 / 5 (31) |
40
Scientists say the Big One could be even bigger
The Big One predicted for the San Andreas fault could end up being bigger than earthquake experts previously thought.
Space & Earth / Earth Sciences
Oct 11, 2010 |
4.9 / 5 (22) |
11
A butterfly effect in the brain
Next time your brain plays tricks on you, you have an excuse: according to new research by UCL scientists published today in the journal Nature, the brain is intrinsically unreliable.
Medicine & Health / Neuroscience
Jun 30, 2010 |
4.4 / 5 (23) |
15
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Scientist proves Braess paradox 'disappears' under high traffic demands
(PhysOrg.com) -- In an urban area with a lot of traffic, adding a new road to distribute the traffic may seem like a sensible idea. But according to the Braess paradox, just the opposite occurs: a new route ...
Sep 14, 2010 |
4 / 5 (24) |
14
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Professor's hypothesis may be game changer for evolutionary theory
(PhysOrg.com) -- A new hypothesis posed by a University of Tennessee, Knoxville, associate professor and colleagues could be a game changer in the evolution arena. The hypothesis suggests some species are ...
Apr 04, 2012 |
4.2 / 5 (22) |
15
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Plants may have a single ancestor
(PhysOrg.com) -- An international group of scientists has analyzed the DNA of primitive microscopic algae, and their findings suggest that all plants on Earth may have had a single ancestor.
Feb 17, 2012 |
4.9 / 5 (16) |
8
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New evidence argues against prehistoric extraterrestrial impact event
(Phys.org) -- Evidence used to support a possible extraterrestrial impact event is likely the result of natural processes, according to a new collaborative study led by U.S. Geological Survey scientists.
Space & Earth / Earth Sciences
Apr 23, 2012 |
4.5 / 5 (17) |
3
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New theory for magnetic stripes on Mars
(PhysOrg.com) -- A controversial new theory has been proposed to explain a series of stripes of permanently magnetized minerals containing iron in the Martian crust. The magnetized stripes, which have alternating ...
Space & Earth / Space Exploration
Jun 28, 2010 |
4.8 / 5 (15) |
3
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Scientists to test if life on Mars could be related to life on Earth
Over the course of the Earth's history, about a billion tons of rocks have been exchanged between the Earth and Mars. Scientists think it's possible that one or more of those rocks might have contained tiny ...
Space & Earth / Space Exploration
Nov 04, 2010 |
4.8 / 5 (13) |
22
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Some like it hot: Site of human evolution was scorching
If you think summer in your hometown is hot, consider it fortunate that you don't live in the Turkana Basin of Kenya, where the average daily temperature has reached the mid-90s or higher, year-round, for the past 4 million ...
Space & Earth / Earth Sciences
Jun 08, 2010 |
4.7 / 5 (13) |
13
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The importance of being magnetized
Despite its magnetic field, Earth is losing its atmosphere to space at about the same rate as planets that lack this protective barrier against the solar wind. Scientists now are beginning to question whether ...
Space & Earth / Space Exploration
Mar 21, 2011 |
4.8 / 5 (12) |
13
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Hypothesis
A hypothesis (from Greek ὑπόθεσις [iˈpoθesis]) consists either of a suggested explanation for an observable phenomenon or of a reasoned proposal predicting a possible causal correlation among multiple phenomena. The term derives from the Greek, hypotithenai meaning "to put under" or "to suppose." The scientific method requires that one can test a scientific hypothesis. Scientists generally base such hypotheses on previous observations or on extensions of scientific theories. Even though the words "hypothesis" and "theory" are often used synonymously in common and informal usage, a scientific hypothesis is not the same as a scientific theory. A hypothesis is never to be stated as a question, but always as a statement with an explanation following it. It is not to be a question because it states what the experimenter thinks will occur. Hypotheses are usually written in the "if-then form": If X, then Y.
For more information about Hypothesis, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
