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Explained: The Discrete Fourier Transform

Explained: The Discrete Fourier Transform

Other Sciences / Mathematics

created Nov 25, 2009 | popularity 4.2 / 5 (36) | comments 8

(PhysOrg.com) -- In 1811, Joseph Fourier, the 43-year-old prefect of the French district of Isčre, entered a competition in heat research sponsored by the French Academy of Sciences. The paper he submitted ...


Efficient new wireless system can save 10 percent of bandwidth

Technology / Engineering

created Dec 22, 2009 | popularity 3.3 / 5 (3) | comments 0

Driven by fast-growing use of smart phones and Internet videos, wireless communication among Americans is expanding so rapidly that a tsunami of megabytes could soon threaten to overwhelm the bandwidth available.


Efforts under way to make Web more accessible (AP)

Efforts under way to make Web more accessible

Electronics / Consumer & Gadgets

created Dec 15, 2009 | popularity not rated yet | comments 0

(AP) -- Imagine not being able to use a mouse to open a Web browser or a keyboard to type an e-mail. What if you couldn't distinguish colors on a computer screen or type the distorted letters in order to ...


Nervy research: Researchers take initial look at ion channels in a model system

Nervy research: Researchers take initial look at ion channels in a model system

Chemistry / Biochemistry

created Dec 02, 2009 | popularity 5 / 5 (1) | comments 0

Before one of your muscles can twitch, before the thought telling it to flex can race down your nerve, a tiny floodgate of sorts -- called an ion channel -- must open in the surface of each cell in these organs ...


Microsoft suspends Juku, admits code copying by vendor

Technology / Software

created Dec 15, 2009 | popularity not rated yet | comments 1

Microsoft on Tuesday indefinitely suspended MSN Juku, its new microblogging service in China, after its Chinese vendor was caught lifting code from a rival Canadian startup, Plurk.


Semantic research sets world standards

Semantic research sets world standards

Technology / Computer Sciences

created Nov 27, 2009 | popularity 3.4 / 5 (5) | comments 1

(PhysOrg.com) -- European researchers have created new tools for semantic technology development which are helping to set the next generation of official standards. The tools also unblock some key bottlenecks ...


children

Birth order affects cooperation in later life

Medicine & Health / Psychology & Psychiatry

created Dec 09, 2009 | popularity 4.2 / 5 (5) | comments 2

(PhysOrg.com) -- A new scientific study has found that at least some of the stereotypes associated with older siblings are true: the oldest sibling is often less trusting, less cooperative, and less reciprocating ...


It's all in your head. No, really: How mental imagery training aids perceptual learning

It's all in your head. No, really: How mental imagery training aids perceptual learning

Medicine & Health / Psychology & Psychiatry

created Dec 03, 2009 | popularity 4 / 5 (1) | comments 0

Practice makes perfect. But imaginary practice? Elisa Tartaglia of the Laboratory of Psychophysics at Switzerland's Ecole Polytechnique Federale de Lausanne (EPFL) and team show that perceptual learning—learning ...


BirdsEye -- a new iPhone app -- resolves your rapture for raptors or finding a finch

Biology / Other

created Dec 03, 2009 | popularity 5 / 5 (1) | comments 0

Looking for larks? Searching for surfbirds? Checking for chickadees? There's an app for that.


AT&T: Tighter control of cell data usage ahead

Technology / Telecom

created Dec 09, 2009 | popularity not rated yet | comments 2

(AP) -- Wireless data hogs who jam the airwaves by watching video on their iPhones will be put on tighter leashes, an AT&T Inc. executive said Wednesday.



List of search results for audio portion