## Search found 194 matches

27 Jul 2008 23:16
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

One can either (a) solve the eqn of motion in radial field or (b) argue as follows: Assume that centre of earth is an inertial frame (Newton's laws hold). Move to the rotating frame of the earth. We can pretend that earth is an inertial frame by adding centrifugal force - which is radial so it does...
27 Jul 2008 21:41
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

I'd like to share an amusing mathematical marshmallow*: We are all familiar with the geometric series x + x^2 + x^3 + .... (aren't we :wink: ) Suppose 0 < x < 1. Then the sum of the series to infinity converges. One way of finding the limit of the sum is as follows: Let S = x + x^2 + x^3 + ... x^n T...
27 Jul 2008 00:51
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

One can either (a) solve the eqn of motion in radial field or (b) argue as follows: Assume that centre of earth is an inertial frame (Newton's laws hold). Move to the rotating frame of the earth. We can pretend that earth is an inertial frame by adding centrifugal force - which is radial so it does ...
27 Jul 2008 00:12
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

Aha, I think I have it. The previous answer was incorrect . The thing is that the gravitational field is always pointing towards the centre of the earth. That is the field lines are not parallel. Hence the ball must fall to the center. So correct answer is: No ball will fall exactly to original grou...
26 Jul 2008 23:55
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

So for a numerical answer: Difference in horizontal velocity dv ~= wdr ~= (2pi/(24*3600))*500 = 5pi/432 (w = angular velocity of earth, r = radius of earth, dr = 500) Time taken for 500 meter descent ~= 10 secs. Therefore difference in position ~= 10*5pi/432 ~= 0.36 meters. The body will land 36 cen...
26 Jul 2008 23:37
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

So no tricks - here is an honest physics problem - If an object fall from 500 meters ( A very tall building like CN tower) where will it lend. Will it lend directly below (horizontally - that is joining a line from the initial point and center of the earth ) (Not trying to be tricky in asking) ...a...
24 Jul 2008 01:16
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

A heuristic argument as to why e is the max value for which n--> inf, y(n,x)=e can be solved: Consider x(a)^a = a (think of x as a function of a) It is clear that the solution to n--> inf, y(n,x)=a is a non-decreasing function of a. Assume that x(a) is continuous and differentiable. take natural log...
24 Jul 2008 00:57
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

cshankar wrote:
for y(n,x)-->2; x = 2^(1/2)

400% correct

and for y(n,x)-->k; x= k^(1/k)

Muhahahaha ...

Amber G - you have it.
It is a tricky problem.
23 Jul 2008 23:49
Forum: Technology & Economic Forum
Topic: BR Maths Corner-1
Replies: 1817
Views: 120624

### Re: BR Maths Corner-1

A cute problem I remember mulling over many years ago:

y(1,x) = x
y(n+1,x) = x^y(n,x) (n = 1, 2, 3, ... )

Q1: If y(n,x) --> 2 as n --> inf, what is the value of x?

Q2 : If y(n,x) --> 3 as n --> inf, what is the value of x?

Notation: a^b is a to the power of b.
06 Jul 2008 00:10
Forum: Strategic & Security Issues Archive
Topic: Indian Economy: News and Discussion (June 8 2008)
Replies: 2768
Views: 363510

### Re: Indian Economy: News and Discussion (June 8 2008)

Firefox/Google blocks http://www.indiastat.com/ and describes it as an "attack site".
Anyone know what the problem is?
22 Jan 2008 00:22
Forum: Technology & Economic Forum
Topic: A Nation on the March
Replies: 790
Views: 194997
There is a mistake in the map. Pakistan is very free. In fact the US is free do do almost anything it likes in Pakistan.
21 Jan 2008 22:37
Forum: Trash Can Archive
Topic: Indo-UK: News & Discussion
Replies: 3938
Views: 504311
The last testament of Flashman's creator: How Britain has destroyed itself "Political correctness" started out as rebellion and and ended up being institutionalized. The author fails to distinguish between these two facets. First he writes: The continual attempt to soften and sanitise the...
20 Jan 2008 22:00
Forum: Technology & Economic Forum
Topic: Indian Real Estate Sector
Replies: 1095
Views: 124111
Rs. 1 mil home, Rs. 1 lakh car, Rs. 10,000 computer and Rs 1000 mobile phone -should bring the Indian middle class up to speed.
05 Feb 2007 22:18
Forum: Technology & Economic Forum
Topic: India and the Global Warming Debate
Replies: 354
Views: 56577
I think the reasons of why global warming is occuring will always be subject to debate, so the best thing to do as Bade said, is to focus on what India should do, and how india is going to react to Global warming, which is occuring. I'm sorry but in your very first post you already presupposed that...
05 Feb 2007 01:58
Forum: Technology & Economic Forum
Topic: India and the Global Warming Debate
Replies: 354
Views: 56577
Perhaps I could have phrased my point better. Global warming may be a reality but we are far from determining whether it is man-made. There appears to be no definitive evidence that it is. So while the scientists can be left in peace to study the problem policymakers should not base their decisions ...
04 Feb 2007 23:37
Forum: Technology & Economic Forum
Topic: India and the Global Warming Debate
Replies: 354
Views: 56577
Get off warming bandwagon The Geologic Record and Climate Change For those who didn't please have a look at the second graph in the second article - it is illuminating. The unfortunate aspect if the global warming tamasha is that attention gets diverted from real issues like unbreathable air in urb...
22 Dec 2006 12:05
Forum: Nuclear Issues Archive
Topic: India-US Nuclear Deal continued
Replies: 285
Views: 59742
22 Dec 2006 10:55
Forum: Nuclear Issues Archive
Topic: India-US Nuclear Deal continued
Replies: 285
Views: 59742
US has broken most of its agreements with other nations and this from the time it was created. India on the other hand broke a pledge not to use the reactor supplied by Canada for weapons use. please let me know where to mail the Medal of Compliance ... It's not a question of "medal of complia...
06 Mar 2005 10:39
Forum: Strategic & Security Issues Archive
Topic: Book Review Folder - 2005/2006/2007
Replies: 404
Views: 103079
Al Jazeera

According to a description on an American public radio channel (NPR), the original employees of Al Jazeera (about 125 of them) were from the crew of a failed BBC attempt to set up an Arabic subsidiary in Quatar.
14 Sep 2004 19:54
Forum: Strategic & Security Issues Archive
Topic: Oil & Natural Gas: News & Discussion - VI
Replies: 323
Views: 104474
Even according to this BHP-Billiton presentation (likely to paint a rosier picture for India) the financial gains for India and Pakistan are comparable. So if India is gaining substantially more it has to be in some other way.

Regards,
Sandeep.
07 Sep 2004 02:47
Forum: Strategic & Security Issues Archive
Topic: Oil & Natural Gas: News & Discussion - VI
Replies: 323
Views: 104474
An interesting take from the following article:- http://www.american.edu/TED/iranpipeline.htm So far, the project has been viewed as a catalyst for the promotion of regional cooperation and mediation by only on bilateral levels. For Pakistan, pipeline is not viewed as a partnership with India, but r...
07 Sep 2004 02:25
Forum: Strategic & Security Issues Archive
Topic: Oil & Natural Gas: News & Discussion - VI
Replies: 323
Views: 104474
One can think of it as an opportunity to extend the Gujral doctrine to Pakistan. If it is successful, smaller neighbors would follow. The benefits are enormous, but of course so are the risks.

Regards,
Sandeep.
04 Aug 2004 20:13
Forum: Strategic & Security Issues Archive
Topic: Oil & Natural Gas: News & Discussion - VI
Replies: 323
Views: 104474
The old merger plan was buried:-

IOC, ONGC, GAIL merger spiked

Interestingly the trade unions are in favour of the new merger while they were against the old one. Same appears to be true for the press (as yet).
04 Aug 2004 19:59
Forum: Strategic & Security Issues Archive
Topic: Oil & Natural Gas: News & Discussion - VI
Replies: 323
Views: 104474
Some old articles from financial express and economic times. Merger of GAIL, ONGC and IOC Also: On Slippery Ground Posting in full as original article has disappeared. First Published in the Economic Times 7 April, 2002 Given the government's dismal performance on the reform front, we tend to cheer ...
02 Dec 2002 15:27
Forum: Military Issues Archive
Topic: Survey: What got you interested in defense matters?
Replies: 53
Views: 22846

### Re: Survey: What got you interested in defense matters?

People who know me often believe that I would be the last person to get involved in anything like defence or warfare. But I do have some interest in them and the reasons follow. (1) Brought up in family environment that was culturally Indian. More than 1/2 of total education yrs education spent in I...
17 Nov 2002 22:02
Forum: History & Current Affairs Archive
Topic: India and the Social Sciences
Replies: 94
Views: 38857

### Re: India and the Social Sciences

One tactic of the "secular progressive" school of thought is to try to pass off concepts ultimately derived from certain western ideologies as Non -ideologies. One need only peruse the thread on BRF titled "Desirablity and feasibility of Mandatory Military/Social service in India by 2010" to see how...
05 Nov 2002 16:13
Forum: Mil-Tech Archive
Topic: A Tale of Two Hydraulic Systems
Replies: 99
Views: 35656

### Re: A Tale of Two Hydraulic Systems

The article reads like a first rate thriller with some shocking bits: Operator (India) may introduce modifications on their own aircraft, the details of which are to be communicated to BAe. If we (BAe) have any technical observations, we will inform you within two months. In any case, the introducti...
03 Nov 2002 11:36
Forum: History & Current Affairs Archive
Topic: India and the Social Sciences
Replies: 94
Views: 38857

### Re: India and the Social Sciences

A look at Microsoft Encarta, showed how the chapter on Hinduism in the most popular encyclopedia in the US, used especially by impressionable children, is grossly unfair. Not surprisingly, the Encarta chapter was written by Wendy Doniger ... Ah, that explains the enlightening and wonderously conten...
14 Jun 2002 11:04
Forum: History & Current Affairs Archive
Topic: The Definition of Worlds
Replies: 24
Views: 12133

### Re: The Definition of Worlds

Originally posted by Narayan_L: You asked,"I was hoping for a rough explanation of how PPP is calculated." Please read the article on the Big Mac Index from The Economist, that I alluded to (and linked) in my last reply to Abhijeet_V. There is an "enlargable" inset in the same article, which descri...
10 Jun 2002 10:21
Forum: History & Current Affairs Archive
Topic: The Definition of Worlds
Replies: 24
Views: 12133

### Re: The Definition of Worlds

Originally posted by Kedar Bhandary: Sandeep: PPP v Absolute GDP. ... Where the PPP fails or is irrelevant is in the matters of global trade. For example, if a barrel of oil costs \$20, then that's what we have to pay and can't argue that other things are so cheap in India and based on PPP, the oil ...
09 Jun 2002 04:00
Forum: History & Current Affairs Archive
Topic: The Definition of Worlds
Replies: 24
Views: 12133

### Re: The Definition of Worlds

Narayan_L, I have a question. Firstly let me admit that I'm quite confused about matters economic but I do attempt to straighten out my understanding once in a while. The question can perhaps be put in a nutshell as:- If a glass of OJ in India costs 10/Rs and a roughly similar quality glass in the U...
01 May 2002 03:59
Forum: History & Current Affairs Archive
Topic: Indianness - a (simple?) survey
Replies: 117
Views: 45392

### Re: Indianness - a (simple?) survey

JE Menon Now if this thread is itself not a sign of "Indianness", I don't know what is. All we need now is for someone to throw in an equation. Where are the IIT guys when you need them? k r sai Let me try it JEM, Possibilties and Probabilities: ... Indian-ness = (Iuso :intersection: Ius') &&am...
27 Apr 2002 04:34
Forum: History & Current Affairs Archive
Topic: Indianness - a (simple?) survey
Replies: 117
Views: 45392

### Re: Indianness - a (simple?) survey

Sridhar wrote: Most successful democracies in the world today have their identities based on civic nationalism, even if they had been formed due to denominational reasons. I for one think that there is a great deal more to, say, American nationalism than mere civic nationalism. Mere civic nationali...
27 Apr 2002 02:34
Forum: History & Current Affairs Archive
Topic: Indianness - a (simple?) survey
Replies: 117
Views: 45392

### Re: Indianness - a (simple?) survey

Badar wrote: Why are 'we' so worried about defining who and what exactly 'we' are? I am that I am. Quite true, but what you _are_ is defined by what your relationship is to others and to nature in general. That is, you _are_ your relationship with the your surroundings. Indianness or any other x-ne...