digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

The New York Times of November 10, 1919, reported on Einstein's confirmed prediction of gravitation on space, called the gravitational lens effect.

The predictive power of a scientific theory refers to its ability to generate testable predictions.[citation needed] Theories with strong predictive power are highly valued because they have practical applications.[citation needed] The concept of predictive power differs from explanatory and descriptive power (where phenomena that are already known are retrospectively explained by a given theory) in that it allows a prospective test of theoretical understanding.

Scientific ideas that do not confer any predictive power are considered at best "conjectures", or at worst "pseudoscience". Because they cannot be tested in any way, there is no way to determine whether they are true or false, and so they do not gain the status of "scientific theory". Theories whose "predictive power" presupposes technologies that are not currently possible constitute something of a grey area. For example, certain aspects of string theory[which?] have been labeled as predictive,[by whom?] but only through the use of machines that have not yet been built and in some cases may never be possible.[examples needed] Whether or not this sort of theory can or should be considered truly predictive is a matter of scientific and philosophical debate.

Examples[edit]

A classic example of the predictive power of a theory is the Discovery of Neptune as a result of predictions made by mathematicians John Couch Adams and Urbain Le Verrier, based on Newton's theory of gravity.

Other examples of predictive power of theories or models include Dmitri Mendeleev's use of his periodic table to predict previously undiscovered chemical elements and their properties (though largely correct, he misjudged the relative atomic masses of tellurium and iodine), and Charles Darwin's use of his knowledge of evolution by natural selection to predict that because there existed a plant (Angraecum) with a long spur in its flowers, a complementary animal with a 30 cm proboscis must also exist to feed on and pollinate it (twenty years after his death Xanthopan morgani, a form of hawk moth, was found which did just that).[citation needed]

Another example of predictive power is the prediction of Einstein's General Theory of Relativity that the path of light would bend in the presence of a strong gravitational field. This was experimentally verified by an expedition to Sobral in Brazil and the Atlantic island of Príncipe to measure star positions during the solar eclipse of May 29, 1919, when observations made by the astrophysicist Arthur Eddington seemed to confirm Einstein's predictions.[1] Although the measurements have been criticized by some as utilizing flawed methodology,[2] modern reanalysis of the data[3][4] suggests that Eddington's analysis of the data was accurate. Later, more precise measurements taken by radio interferometry confirmed the predictions to a high degree of accuracy.

Applications[edit]

The predictive power of a theory is closely related to applications. [according to whom?]

General relativity not only predicts the bending of light, but also predicts several other phenomena. Recently, the calculation of proper time of satellites has been a successfully-measured prediction, now incorporated into the method used to calculate positions via GPS.

If a theory has no predictive power, it cannot be used for applications.[citation needed]

References[edit]

  1. ^ F. W. Dyson, A. S. Eddington, and C. Davidson, "A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919," Philosophical Transactions of the Royal Society of London. Series A, Volume 220 (1920) pp. 291-333 (available online from the Royal Society)
  2. ^ Harry Collins and Trevor Pinch, The Golem: What Everyone Should Know About Science, Cambridge University Press, 1993. (ISBN 0521477360)
  3. ^ Daniel Kennefick, "Not Only Because of Theory: Dyson, Eddington and the Competing Myths of the 1919 Eclipse Expedition," Proceedings of the 7th Conference on the History of General Relativity, Tenerife, 2005; available online from ArXiv
  4. ^ Phillip Ball, "Arthur Eddington Was Innocent," Nature, 7 September 2007, doi:10.1038/news070903-20 (available online 2007)

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Predictive_power — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
122323 videos foundNext > 

https://youtube.com/devicesupport

Predictive Power of Eclipse Paths-Bill Meridian

This is a brief explanation of the astrological technique of eclipse paths.

Lawrence McMillan: Predictive Power of Options

In this excerpt from Laurence McMillan's DVD "Reducing the Risks of Options Trading", Lawrence McMillan discusses the predictive power of options. Specifically, Lawrence explains what can be...

The Predictive Power of Treasuries

Charlie Bilello, CMT explains how the predictive power of Treasuries can help investors anticipate market movements. Video hosted by Carrie Lee. Video taken 5/28/14.

PREDICTIVE POWER OF ECLIPSE PATHS 5-LUNAR ECLIPSES OF 2014-2015

This video analyzes the effect of the lunar eclipses of October 2014 and April of 2015. It demonstrates how to determine what theme the eclipses will energize. Also, how to time shorter term...

Predictive Analytics: The Power to Predict Who Will Click, Buy, Lie, or Die

You have been predicted — by companies, governments, law-enforcement, hospitals and universities. Their computers say, "I knew you were going to do that!" These institutions are seizing upon...

Harness the Predictive Power of Google Analytics

Did you know that Google Analytics can provide sophisticated traffic information about a website, all while delivering a comprehensive array of business intelligence and visitor behavior insights?...

The Predictive Power of ScryingBiotech

This video is a demonstration of the power of my stock selection process highlighting loss avoidance.

Ecology Letters : Experimentally testing and assessing the predictive power of species assembly...

Experimentally testing and assessing the predictive power of species assembly rules for tropical canopy ants. Tom M. Fayle et al (2015), Ecology Letters, http://dx.doi.org/10.1111/ele.12403...

PREDICTIVE POWER OF ECLIPSE PATHS 3

FORECASTING AND TRACKING THE 2014-2015 RUSSIAN CRISIS WITH ECLIPSES.

122323 videos foundNext > 

4290 news items

ETFdb.com

ETFdb.com
Fri, 24 Apr 2015 10:15:00 -0700

Traders and investors of all walks have embraced ETFs over the years for their ease-of-use, cost-efficiency, and the sheer diversity in offerings, that continues to grow. The benefits of exchange-traded products over their mutual fund counterparts ...

THE BUSINESS TIMES

THE BUSINESS TIMES
Wed, 15 Apr 2015 04:15:00 -0700

[SYDNEY] Beijing's success in predicting the pulse of the world's second largest economy was on full view on Wednesday as growth handily matched its stated target, even if, for some analysts, the numbers don't always appear to add up. It was also the ...
 
The News Hub
Sun, 26 Apr 2015 06:52:30 -0700

So predictive power - it is relevant to point out that the smaller parties will have a huge impact in determining who forms a government, and the different groups in society will each have preferred method of predicting. Just how effective are polls ...

Nasdaq

Zacks.com
Mon, 27 Apr 2015 14:14:48 -0700

This implies a likely positive earnings surprise for this company. Zacks Rank: Hess carries a Zacks Rank #4 (Sell), which lowers the predictive power of ESP. We caution against Sell-rated stocks (Zacks Ranks #4 and 5) going into the earnings ...
 
Zacks.com
Mon, 27 Apr 2015 14:11:15 -0700

Zacks Rank: VASCO's Zacks Rank #3 when combined with positive ESP increases the predictive power of ESP. We caution against stocks with a Zacks Rank #4 and #5 (Sell-rated stocks) going into the earnings announcement, especially when the company ...
 
Zacks.com
Mon, 27 Apr 2015 12:52:30 -0700

Spirit AeroSystems Holdings Inc. (SPR - Snapshot Report) is scheduled to report first-quarter 2015 results before the market opens on Apr 29. Last quarter, Spirit AeroSystems posted a positive earnings surprise of 12.99%. Let's see how things are ...
 
Nasdaq
Mon, 27 Apr 2015 11:11:15 -0700

Though this increases the predictive power, a 0.00% ESP makes surprise prediction difficult. We caution against stocks with a Zacks Rank #4 or 5 (Sell-rated stocks) going into the earnings announcement, especially when the company is seeing negative ...
 
Zacks.com
Mon, 27 Apr 2015 08:23:21 -0700

Zacks Rank: SIRIUS XM carries a Zacks Rank #3 which increases the predictive power of ESP. However, the company's 0.00% ESP makes surprise prediction difficult. Meanwhile, we caution against stocks with a Zacks Rank #4 and 5 (Sell-rated stocks) going ...
Loading

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight