By samzenpus from Slashdot's it's-alive department
First time accepted submitter Martin S. writes "How NASA Engineers have reverse engineered the F1 engine of a Saturn V launcher, because: 'every scrap of documentation produced during Project Apollo, including the design documents for the Saturn V and the F-1 engines, remains on file. If re-creating the F-1 engine were simply a matter of cribbing from some 1960s blueprints, NASA would have already done so.
A typical design document for something like the F-1, though, was produced under intense deadline pressure and lacked even the barest forms of computerized design aids. Such a document simply cannot tell the entire story of the hardware. Each F-1 engine was uniquely built by hand, and each has its own undocumented quirks. In addition, the design process used in the 1960s was necessarily iterative: engineers would design a component, fabricate it, test it, and see how it performed. Then they would modify the design, build the new version, and test it again. This would continue until the design was "good enough."'
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By samzenpus from Slashdot's you-take-the-good-you-take-the-bad department
chamilto0516 writes "Twenty-five miles due south of Salt Lake City, a massive construction project is nearing completion. The heavily secured site belongs to the National Security Agency. The NSA says the Utah Data Center is a facility for the intelligence community that will have a major focus on cyber security. Some published reports suggest it could hold 5 zettabytes of data. Asked if the Utah Data Center would hold the data of American citizens, Alexander [director of the NSA] said, 'No...we don't hold data on U.S. citizens,' adding that the NSA staff 'take protecting your civil liberties and privacy as the most important thing that they do, and securing this nation.' But critics, including former NSA employees, say the data center is front and center in the debate over liberty, security and privacy."
According to University of Utah computing professor Matthew Might, one thing is clear about the Utah Data Center, it means good paying jobs
. "The federal government is giving money to the U.'s programming department to develop jobs to fill the NSA building," he says.Read Replies (0)
The Hacker Lifecycle
Posted by News Fetcher on April 14 '13 at 04:45 AM
By Soulskill from Slashdot's pollination-fertilization-budding-and-dispersal department
An anonymous reader writes "Hacker Benjamin Smith deconstructs the cycle of education, production, and rest that will be familiar to many software and hardware engineers. He breaks it down into four steps: 1) Focused effort toward a goal, 2) structured self-education, 3) side-projects to sharpen skills, and 4) burnout and rest. He writes, 'As my motivation waxes at the beginning of a cycle, I find myself with a craving to take steps towards that goal. I do so by starting a project which focuses on one thing only: building a new income stream. As a result of this single-mindedness, the content or subject of the project is often less interesting than it otherwise might have been. ... [Later], I almost always decide to teach myself a new technical skill or pick up some new technology. ... This is usually the most satisfying period of my cycle. I am learning a new skill or technology which I know will enhance my employability, allow me to build things I previously could only have daydreamed about, and will ultimately be useful for many years to come. ... [In the burnout phase], I'll spend this period as ferociously devoted to my leisure activities as I was to my productive tasks. But after a few months of this, I start to feel an itch...'"Read Replies (0)