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News tagged with formula

Teenager reportedly finds solution to 350 year old math and physics problem

(Phys.org) -- In Isaac Newton's Principia Mathematica published in 1687, the man many consider the most brilliant mathematician of all time used a mathematical formula to describe the path taken by an obj ...

Other Sciences / Mathematics

created May 29, 2012 | popularity 4.5 / 5 (25) | comments 51 | with audio podcast weblog

Mathematical physics reveal nature's formula for survival (w/ Video)

(Phys.org) -- The vascular system of a leaf provides its structure and delivers its nutrients. When you light up that vascular structure with some fluorescent dye and view it using time-lapse photography, details begin to ...

Other Sciences / Mathematics

created May 14, 2012 | popularity 3.9 / 5 (12) | comments 10 | with audio podcast

Pig stomach mucins are effective as anti-viral agents for consumer products

Mucus often elicits strong revulsion, but to MIT biological engineer Katharina Ribbeck, it is a fascinating material. 

Chemistry / Biochemistry

created Apr 25, 2012 | popularity not rated yet | comments 1

Lightweight construction on the way to volume production

Carmakers and airplane manufacturers are very particular when it comes to the weight of their models: the lighter they are, the less fuel they consume - and the less carbon dioxide they blow into the air. ...

Technology / Engineering

created Apr 23, 2012 | popularity not rated yet | comments 2

Hackers target F1 websites over Bahrain GP

(AP) -- A hackers group has claimed responsibility for a denial-of-service attack on the official Formula One website in protest over the running of this weekend's Bahrain Grand Prix.

Technology / Internet

created Apr 20, 2012 | popularity not rated yet | comments 0

Dino eggs shape Easter eggs, says new study

An international group of researchers has helped to determine that dinosaurs have shaped the Easter eggs we buy in the high street.

Other Sciences / Archaeology & Fossils

created Apr 05, 2012 | popularity 2.3 / 5 (3) | comments 1 | with audio podcast

Fan power may lead to ban on F1 new 'stepped noses'

Fan power may lead to a ban on the ugly new "stepped noses" on this year's Formula One cars, the sport's ruling body has conceded.

Technology / Other

created Mar 17, 2012 | popularity 1 / 5 (6) | comments 2

Google making search smarter with 'semantic' capabilities

Google says it is retooling its search machine to go beyond recognizing words in queries and begin understanding what it is people are asking for.

Technology / Internet

created Mar 16, 2012 | popularity 4 / 5 (6) | comments 4

Artificial intelligence pioneer wins A.M. Turing Award

Judea Pearl, a pioneer in the field of artificial intelligence, has been awarded the prestigious 2011 A.M. Turing Award.

Technology / Computer Sciences

created Mar 15, 2012 | popularity 3.5 / 5 (2) | comments 0

Researchers create first large-scale model of human mobility that incorporates human nature

For more than half a century, many social scientists and urban geographers interested in modeling the movement of people and goods between cities, states or countries have relied on a statistical formula called ...

Other Sciences / Mathematics

created Feb 27, 2012 | popularity 3 / 5 (2) | comments 0 | with audio podcast

A classic model for ecological stability revised, 40 years later

A famous mathematical formula which shook the world of ecology 40 years ago has been revisited and refined by two University of Chicago researchers in the current issue of Nature.

Biology / Ecology

created Feb 19, 2012 | popularity 4.1 / 5 (8) | comments 4 | with audio podcast

Demand Media stock soars as 4Q results renew hope

(AP) -- Demand Media Inc.'s stock soared by more than 30 percent Friday after the online content publisher's fourth-quarter earnings and outlook for this year gave investors hope that it is starting to recover from diminished ...

Technology / Business

created Feb 17, 2012 | popularity not rated yet | comments 0

Researchers seek to beat 'molecular obesity'

(PhysOrg.com) -- Researchers from the University of Dundee have come up with a new innovative approach in the quest to reduce failure rates in the drug discovery process and fight 'molecular obesity'.

Chemistry / Biochemistry

created Jan 26, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Abbott cuts 700 jobs from device and testing unit

(AP) -- Medical device and drugmaker Abbott Laboratories said Wednesday it will lay off 700 employees as part of ongoing restructuring efforts.

Technology / Business

created Jan 25, 2012 | popularity not rated yet | comments 0

Time for a change? Scholars say calendar needs serious overhaul

Researchers at The Johns Hopkins University have discovered a way to make time stand still -- at least when it comes to the yearly calendar.

Other Sciences / Mathematics

created Dec 27, 2011 | popularity 3.6 / 5 (48) | comments 142 | with audio podcast

Formula

In mathematics, a formula (plural: formulae or formulas) is an entity constructed using the symbols and formation rules of a given logical language.

In science, a formula is a concise way of expressing information symbolically (as in a mathematical or chemical formula), or a general relationship between quantities. Colloquial use of the term in mathematics often refers to a similar construct.

Such formulae are the key to solving an equation with variables. For example, determining the volume of a sphere requires a significant amount of integral calculus; but, having done this once, mathematicians can produce a formula to describe the volume in terms of some other parameter (the radius for example). This particular formula is:

Having obtained this result, and knowing the radius of the sphere in question, we can quickly and easily determine its volume. Note that the quantities V, the volume, and r the radius are expressed as single letters. This convention, while less important in a relatively simple formula, means that mathematicians can more quickly manipulate larger and more complex formulae.

Expressions are distinct from formulae in that they cannot contain an equals sign; whereas formulae are comparable to sentences, expressions are more like phrases.

In a general context, formulae are applied to provide a mathematical solution for real world problems. Some may be general: F = ma, which is one expression of Newton's second law, is applicable to a wide range of physical situations. Other formulae may be specially created to solve a particular problem; for example, using the equation of a sine curve to model the movement of the tides in a bay. In all cases however, formulae form the basis for all calculations.

For more information about Formula, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.