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A weblog, which is usually shortened to blog, is a type of website where entries are made (such as in a journal or diary), displayed in a reverse chronological order. Blogs often provide commentary or news on a particular subject, such as food, politics, or local news; some function as more personal online diaries. A typical blog combines text, images, and links to other blogs, web pages, and other media related to its topic. Most blogs are primarily textual although many focus on photographs, videos or audio. The word blog can also be used as a verb, meaning adding an entry to a blog.

History


Before blogging became popular, digital communities took many forms, including Usenet, e-mail lists and bulletin board systems (BBS). In the 1990s, Internet forum software, such as WebEx, created running conversations with "threads." Threads are topical connections between messages on a metaphorical "corkboard."

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Innovation

TiVo and Entertainment Weekly team up, but who’s helping whom?
cgaylord Wed, 27 Aug 2008 21:12:21 -0000
With so many new TV shows debuting each fall, it’s hard to keep on top of what’s worth watching. If you choose poorly, you could wind up wasting time on shows doomed to cancellation while falling weeks behind on a decent series. Well, TiVo users will soon get a little extra help. The company has [...]
Will lasers brighten nuclear’s future?
editorial Wed, 27 Aug 2008 18:17:17 -0000
Inside a bland industrial building in Wilmington, N.C., an experiment is in the works that could vastly reduce the cost, time, and space needed to make fuel for nuclear power plants and, some nonproliferation experts say, for nuclear bombs as well. In that building, secret uranium-enrichment technology licensed by GE-Hitachi Nuclear Energy is nearing a pilot [...]
Kindle is the new backpack
cgaylord Tue, 26 Aug 2008 22:33:01 -0000
There are several rumors bouncing around the web that Amazon is putting the final touches on a new model of its Kindle ebook reader. The target audience: students. Just as college kids played a huge role in the success of the iPod – and many iDerivatives – Amazon is banking on them ditching hardcovers and adopting [...]

CNN.com - Science & Space

Glitch delays Phoenix's work on Mars
Thu, 19 Jun 2008 13:06:32 -0400
Read full story for latest details.
Planets make case for 'crowded universe'
Tue, 17 Jun 2008 11:15:45 -0400
Read full story for latest details.
Shuttle back with 'beautiful landing'
Sat, 14 Jun 2008 13:08:13 -0400
Read full story for latest details.

Slashdot: Science

New Map From Fermi Gamma-Ray Space Telescope
samzenpus Thu, 28 Aug 2008 02:02:00 -0000
I Don't Believe in Imaginary Property writes "NASA has received interesting results from the Fermi Gamma-ray Space Telescope, originally known as GLAST, which has allowed them to create new map of the gamma-ray sky. The secret to its ability to resolve gamma-rays is that they use layers of tungsten interleaved with silicon detectors. When a gamma-ray strikes tungsten, it produces an electron/positron pair due to the photoelectric effect, which cascades as it goes through further layers of tungsten. Meanwhile, they record which silicon detectors had electrons or positrons pass through them to determine the direction of the source and they also record the total energy of the electron/positron pairs to calculate the wavelength of the gamma-ray using Planck's Law. The data gathered in just its first few hours of operation is reportedly comparable to the data from the Energetic Gamma-Ray Experiment Telescope, which gathered data for nine years back in the 1990's and there are hopes that it could detect dark matter in the form of weakly interacting massive particles (WIMPs)."Read more of this story at Slashdot.
45th Known Mersenne Prime Found?
samzenpus Thu, 28 Aug 2008 00:18:00 -0000
An anonymous reader writes "The Great Internet Mersenne Prime Search (GIMPS) has apparently discovered a new world-record prime number. A GIMPS client computer reported the number on August 23rd, and verification is currently under way. The verification could take up to two weeks to complete. The last Mersenne prime discovered was over 9.8 million digits long, strongly suggesting that the new value may break the 10 million digit barrier — qualifying for the EFF's $100000 prize!"Read more of this story at Slashdot.
Space Cube – the World's Smallest Linux PC
timothy Wed, 27 Aug 2008 13:47:00 -0000
Barence writes "Meet the Space Cube — the world's smallest fully functional PC. Primarily designed for use in space, it somehow manages to cram a working PC with USB ports, card readers, audio outputs and proprietary interfaces into a tiny cube chassis measuring just two inches square. It runs a basic Linux front-end, which the blogger takes a look at, and there are some great photos of the device being loomed over by everyday objects like coffee mugs and cellphones. It has connections for controlling various electronics used by ESA, NASA and JAXA, but it will also apparently be for sale to the public soon, for use by amateur engineers and robotics clubs."Read more of this story at Slashdot.

L.A. Times - Science

Diabetes researchers convert pancreas cells to produce insulin
Thu, 28 Aug 2008 00:00:00 -0700
The Harvard study may ultimately shift treatment options away from stem cells for a variety of diseases. Injecting a cocktail of proteins directly into the bodies of diabetic mice, researchers have converted normal pancreas cells into insulin-producing cells -- a genetic transformation that could pave the way for treating intractable diseases and injuries using a patient's own supply of healthy tissue.
Number of Americans without health insurance falls
Wed, 27 Aug 2008 00:00:00 -0700
The Census Bureau says the 2007 decrease is mostly due to expanded government coverage for children. Thanks mostly to expanded government health coverage for children, the number of people without health insurance fell in 2007 for the first time since President Bush took office, the U.S. Census Bureau said Tuesday.
Dr. Thomas H. Weller, 93; virologist won Nobel Prize for work on polio
Wed, 27 Aug 2008 00:00:00 -0700
Dr. Thomas H. Weller, the Harvard virologist who shared the 1954 Nobel Prize in medicine for developing techniques to grow the polio virus in the laboratory, a feat that laid the groundwork for the development of the polio vaccine and the feared virus' near-eradication from the world, died in his sleep Saturday at his home in Needham, Mass. He was 93.

 
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the plexus - the plexus is a science-centric blog based on the idea of interdiscipline. The new wave of science is all about junctions and common ground. We blog about it.

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