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Comment The Final Explanation (Score 2) 360

Two phenomena are at work:
1. Atmospheric pressure is needed to take the fluid till the apex. It will not affect the rate of siphoning but it is a necessary barrier that has to be overcome.

2. Once atmoshperic pressure has done its work, the rate of flow of fluid will be completely determined only by the difference between the heights of two ends of the pipe and the amount of gravitational force.

Comment Equations: (Score 1) 360

The total pressure acting on water in the pipe is

[P(air) + P(h1)] - [P(air) + P(h2)]

where h1 is the position of upper end and h2 is the position of lower end of the pipe.
If you want to siphon the liquid fast, either lift the upper end or lower down the lower end of pipe, which is the proof that gravity is in action.

Although, P(air) gets canceled in a regular siphon as in the equation above, if air pressure is different at two ends it will start affecting the flow. Obviously, in outer space P(air) will be zero and P(h1) and P(h2) will be very weak.

Comment Human-aided computer sort (Score 1) 195

The method I commonly use is human-aided computer sort. This is how it works. You hand over the sixty or something papers to 60 people while entering the sortable field of each paper in a spreadsheet as you do it. Sort the field on the spreadsheet and collect the sheets back from the fellas in the sorted order. As a bonus you get the soft copy of the entire index. And it only takes O(n).

Comment Fast vs precise (Score 1) 876

Fast vs precise vs versatile

You can hum a tune and record it on your phone.
Why do we need musical notation then?
The answer is ... precision.

I like the Python/Ruby approach: do more with less code. That's the best it can get.

And if you really really want to code using fancy blocks and rectangles (like those in flowcharts), imagine the nightmare those malformed graphics elements arranged in ever increasing network like layout with exponentially increasing connections will cause when much easier things like syntax highlighting sometimes sucks.

Code visualization and visual coding may be used as a secondary aid.

Comment No regrets (Score 1) 2219

Slashdot beta used to suck 6 months or a year ago (whenever its existence was first revealed), it sucks enough even today. If anything good about it had to happen it would have happened by now. So based on my own experience, I am fairly convinced that there is no point expecting anything good from the beta site.

I've already blocked the beta site using a browser plug-in. I've never failed to respect my own experience and my honest beliefs and these are the common elements that bind me to the other readers, their stories and their comments. And for the sake of them, if I have to leave slashdot (in case classic is discontinued), I'll leave and never look back. No regrets.

Make your move mods.

Comment Encryption Encryption Encryption (Score 1) 341

The article points to a deeper problem that exists with all unencrypted disks. What if the hardware gets into wrong hands? With encrypted disks you're never in urgency of changing all the passwords of bank cards, devices, online accounts stored on your system, in case the hardware is compromised. Encryption also protects your sensitive data to a great degree. I recommend all partitions to be made encrypted during the initial setup of the system.

Comment Phython, XML and Geany (Score 1) 204

Although I have never used Python and I program in C++ 100% of time, if I were to rule the world I would issue an ultimatum to all programming languages to conform to Python syntax within 5 years after which all backward compatibility will be dropped! Python offers a terse human readable syntax. Now for a verbose machine readable syntax which is still very human friendly, I would choose XML. So again, Latex gets five years to confom to Python (terse) or XML (verbose) or both flavors. The idea is that we can keep on complicating things in the pretext of simplifying them. All we need is Python and XML syntax, syntax highlighint text editors (Vim for shell and Geany for GUI), PNG format for images and bzip2 to package all the stuff in a single file ready to be dispatched to a printer or a projector via a rendering application.

Comment Why I didn't like the new design (Score 1) 1191

Let me begin with what I liked : * Standard view with images is good. * Headline view is the most useful feature added. .......... And now what I didn't like: * Text displayed in classic view is less wider than the actual classic view. Lot of the screen width is unutilized in the new design which makes me scroll more often. * The new layout is just a 'blog layout' with lesser width dedicated to the actual content of the stories. * The new view lays emphasis on filters and popular topics. Oh, I forgot to tell you, I hate filters.

Submission + - Eola's Web Patent Claim Invalidated by US Court

Ajay Anand writes: A US court has upheld a decision to invalidate a tech firm's claim to own technologies underpinning the web.

Eolas's claims revolved around a series of patents it had been using to extract licence fees from hi-tech firms such as Microsoft and Oracle.

However, Eolas's claims were disputed by many others including web creator Sir Tim Berners-Lee.

The ruling will also mean an end to many other lawsuits Eolas mounted against hi-tech firms.

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