Wednesday, July 29, 2009
De-motivating Quotes :)
Saturday, July 25, 2009
जीवनसंगीताबद्दल थोडेसे: ’ओ सजना’…आणि मलविसर्जनसुद्धा
s="Apple-style-span" style="font-size:medium;">त्या कार्यक्रमामध्ये भाग घेतलेले मराठीतील सध्याचे आघाडीचे गायक/ वादक यांना मी समजू शकतो...त्यांचा संबंध फक्त गाण्याशी...त्या गाण्याचा तांबे मलविसर्जनाशी जोडतात की, अध्यात्माशी की रक्ताभिसरणाशी की एकूणच जीवनपद्धतीशी, त्या कलावंतांना काय घेणे त्याच्याशी...
Sunday, July 19, 2009
Amazing photograph...
Thursday, July 16, 2009
An Economic Analysis of the Somali Pirate Business Model
Came across a nice article on Wired.com magazine...
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Cutthroat Capitalism: An Economic Analysis of the Somali Pirate Business Model
Good read…funny and informative (with charts and equations)! J
Interesting to know that even pirates “rather than squandering their loot, they reinvest in equipment and training.” …in short, there is no escape from continuous learning and upgrading skills, no matter what you do for living J
http://www.wired.com/politics/security/magazine/17-07/ff_somali_pirates
http://www.wired.com/politics/security/magazine/17-07/ff_somali_pirates_attack
http://www.wired.com/politics/security/magazine/17-07/ff_somali_pirates_negotiation
http://www.wired.com/politics/security/magazine/17-07/ff_somali_pirates_resolution
~ Kaustubh
Tuesday, July 14, 2009
New desktop wallpaper...
Monday, July 6, 2009
What is 20/20 vision?
By looking at lots of people, doctors have decided what a "normal" human being should be able to see when standing 20 feet away from an eye chart. If you have 20/20 vision, it means that when you stand 20 feet away from the chart you can see what the "normal" human being can see. (In metric, the standard is 6 meters and it's called 6/6 vision).
In other words, your vision is "normal" -- most people can see what you see at 20 feet. (From here on, please assume that the word "normal" has quotes around it).
If you have 20/40 vision, it means that when you stand 20 feet away from the chart you can see what a normal human can see when standing 40 feet from the chart. That is, if there is a normal person standing 40 feet away from the chart and you are standing only 20 feet away from it, you and the normal person can see the same detail. 20/100 means that when you stand 20 feet from the chart you can see what a normal person standing 100 feet away can see. 20/200 is the cutoff for legal blindness in the United States.
You can also have vision that is better than the norm. A person with 20/10 vision can see at 20 feet what a normal person can see when standing 10 feet away from the chart.
Hawks, owls and other birds of prey have much more acute vision than humans. A hawk has a much smaller eye than a human being but has lots of sensors (cones) packed into that space. This gives a hawk vision that is eight times more acute than a human's.
A hawk might have 20/2 vision!
~ Kaustubh
Friday, July 3, 2009
Mathematically funny...
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"This is a one line proof...if we start sufficiently far to the left."
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A math professor is one who talks in someone else's sleep.
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To mathematicians, solutions mean finding the answers.
But to chemists, solutions are things that are still all mixed up.
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Some mathematicians become so tense these days that they do not go to sleep during seminars.
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A physicist and a mathematician are sitting in a faculty lounge. Suddenly, the coffee machine catches on fire. The physicist grabs a bucket and leap towards the sink, filled the bucket with water and puts out the fire. Second day, the same two sit in the same lounge. Again, the coffee machine catches on fire. This time, the mathematician stands up, got a bucket, hands the bucket to the physicist, thus reducing the problem to a previously solved one.
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an class="Apple-style-span" style="font-size:13px;">---------------------------------------------------------
Medical Student : "4"
All others looking astonished : "How did you know ??"
Medical Student : :I memorized it."
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Salesperson: 3 is a prime, 5 is a prime, 7 is a prime, 9 -- we'll do for you the best we can,...
Computer Software Salesperson: 3 is prime, 5 is prime, 7 is prime, 9 will be prime in the next release,...
Chemist: What's a prime?
Advertiser: 3 is a prime, 5 is a prime, 7 is a prime, 11 is a prime,...
Lawyer: 3 is a prime, 5 is a prime, 7 is a prime, 9 -- there is not enough evidence to prove that it is not a prime,...
Programmer: "Wait a minute, I think I have an algorithm from Knuth on finding prime numbers... just a little bit longer, I've found the last bug... no, that's not it... ya know, I think there may be a compiler bug here - oh, did you want IEEE-998.0334 rounding or not? - was that in the spec? - hold on, I've almost got it - I was up all night working on this program, ya know... now if management would just get me that new workstation that just came out, I'd be done by now... etc., etc. ..."
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A mathematician organizes a lottery in which the prize is an infinite amount of money. When the winning ticket is drawn, and the jubilant winner comes to claim his prize, the mathematician explains the mode of payment: "1 dollar now, 1/2 dollar next week, 1/3 dollar the week after that..."
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The Evolution of Math Teaching
- 1960s: A peasant sells a bag of potatoes for $10. His costs amount to 4/5 of his selling price. What is his profit?
i> - 1970s: A farmer sells a bag of potatoes for $10. His costs amount to 4/5 of his selling price, that is, $8. What is his profit?
- 1970s (new math): A farmer exchanges a set P of potatoes with set M of money. The cardinality of the set M is equal to 10, and each element of M is worth $1. Draw ten big dots representing the elements of M. The set C of production costs is composed of two big dots less than the set M. Represent C as a subset of M and give the answer to the question: What is the cardinality of the set of profits?
- 1980s: A farmer sells a bag of potatoes for $10. His production costs are $8, and his profit is $2. Underline the word "potatoes" and discuss with your classmates.
- 1990s: A farmer sells a bag of potatoes for $10. His or her production costs are 0.80 of his or her revenue. On your calculator, graph revenue vs. costs. Run the POTATO program to determine the profit. Discuss the result with students in your group. Write a brief essay that analyzes this example in the real world of economics.
~ Kaustubh