Welcome to a generous selection of articles from DAWN's Weekly Sci-Tech World.
This page is updated every Saturday.
For current issue Click here
Scramjet engines make space travel easier
 ON November 16, Nasa’s X-43A experimental space plane broke the aircraft speed record, for the second time in a year. In the unmanned test flight, the plane reached close to Mach...
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BYTEBACK
 Joining Orkut networkI have two questions: 1. How can I join Orkut? 2. Can a hacked email ID be recovered? If yes, can you please guide me how?...
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SCTP: a reliable network
OVER the past few decades, packet-switched networks have merged with new technologies to facilitate more efficient communication channels within network systems. IP and telephony-based networks are converging to support the interworking...
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WEBWATCH
 If you want to be a surgeon, here’s a great primer. It allows you to be a doctor as a colleague leads you through a routine operation to repairing a worn joint....
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Addiction and neurological changes in the brain
 It was during my clinical rotation at Civil Hospital, Karachi, where I discovered that most people consider addiction as a physical state of dependence on a drug. It is also widely...
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The case for voice over broadband
 THE last three years have seen a massive expansion in the availability of broadband services worldwide. In Europe, Belgium and the Netherlands are leading the way and look set to reach...
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What’s new under the sun
 ON April 4, 1980, a new American spacecraft named Solar Max made one of the most unsettling discoveries in the history of science. It detected a sudden drop in energy coming...
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Some facts about hypertension
 HYPERTENSION is one of the most common diseases and physiological consequences (in some cases) prevailing in our society. Unfortunately, however, it is not taken as seriously as it should be. Hypertension...
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IBM, Sony debut ‘Cell’ chip
IBM and Sony have unveiled the first workstation powered by the next-generation Cell processor. Details about the high-performance technology were announced early this week by the two companies and co-developer Toshiba....
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Whale beaching puzzles scientists
Scientists and wildlife officials in Sydney continued to search for what may have caused a series of mass strandings which left 168 whales and dolphins dead on Australian and New Zealand...
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First Pakistan-India IT summit on December 16
Close on the heels of Pakistan Prime Minister, Mr Shaukat Aziz’s visit to India to strengthen economic ties between the two countries, Pakistan Software Houses Association (P@SHA) in association with Nasscom,...
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Atta for quality varsities in Muslim world
Higher Education Commission Chairman Prof. (Dr) Attaur Rehman has stressed the need for excelling in scientific education, saying that among the 200 finest universities in the world , not even a...
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Firewalls: a necessary evil
 IT’S 2:00 am Do you know what your PC is doing, as you get up to get a bite of that tasty sandwich? If not, you’re probably not running a firewall...
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COOL GADGETS
 HP scanjet 4670vp features a see-through window, allowing for both vertical and face-down scanning. It has a TMA adapter that transforms 35 mm slides and negatives into digital photos....
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