34/2012 An extension to Godel's theorems

Kurt Godel is supposed to have formulated two famous theorems (strictly speaking, a theorem and its corollary) concerning the completeness of mathematics. Or using mathematics to prove itself.

Take a look here, for details ::

http://en.wikipedia.org/wiki/G%C3%B6del%27s_incompleteness_theorems

An extension to the above (created by me), would be :: "Can I say if I am insane ?" (maybe I am already insane).

partha

33/2012 Insanity and mathematics....

You will really like this presentation. I know one more person who will soon be listed in this presentation. His name starts with a P and he speaks Tamil. http://www.lomont.org/Math/Talks/Mathematics%20and%20Insanity.pdf

32/2012 Why is a new moon not the same as a solar eclipse?

I discovered the answer to an intriguing question I have always had. I asked many people, but no one seemed to know the answer (or rather gave me a convincing answer). Here is the question ::

"Because a new moon occurs when the moon is positioned between the earth and sun, doesn't this also mean that somewhere on the Earth, a solar eclipse (or partial eclipse) is happening?

What, then, is the difference between a solar eclipse and a new moon?"

Want to know the answer ? Go to :::http://astronomy.stackexchange.com/questions/433/why-is-a-new-moon-not-the-same-as-a-solar-eclipse?newsletter=1&nlcode=57597|1d90

To understand the orbit of the moon, take a look here :: http://en.wikipedia.org/wiki/Orbit_of_the_Moon

If you have not understood the ecliptic, you will not understand anything of all this. So, take a look here, first :: http://en.wikipedia.org/wiki/Plane_of_the_ecliptic. You will find a useful animation explaining the ecliptic and the orbits of the earth and planets.

We can never stop learning.

partha

31/2012 A new threat to the world

A new computer Trojan program is doing the rounds now. DNSChanger is a trojan that will change the infected system's Domain Name Server (DNS) settings, in order to divert traffic to unsolicited, and potentially illegal sites. The culprit -- a shabby piece of software called Win32. The cancer can spread to all DNS servers on the Internet which use Win32. This trojan that is named 'PayPal-2.5.200-MSWin32-x86-2005.exe'. Doomsday has only been postponed. It is not yet eliminated.

The real culprits are the thousands of incompetent and irresponsible users who stick to using Win32 in spite of the warnings by well-intentioned and well-informed scholars. You like Win32 go ahead, enjoy it. But you have no business to spread shit on people who want to live in peace. This cancer is spreading because of idiots like you.

If you still dont stop using Win32, you will be doomed, and so will a whole lot of people around you. Wake up and stop the calamity.

partha

PS Let people know about this threat. Spread the word. You can forward this blog post to all around you. And of course you can come out of the curse of Win32 by abandoning it immediately.

30/2012 Saying that well....

Discovered a very nice, useful, and informative resource :: http://www.phrases.org.uk/

29/2012 Mathematical Foundations of Computer Science

Mathematical Foundations of Computer Science (MFCS) is taught in many of our institutions. It is also called as "discrete mathematics". One of the main hurdles in teaching MFCS is about deciding what exactly should be the coverage of this course. Here is an initiative by IEEE to catalogue the contents of MFCS. This effort is available for review at :
http://computer.centraldesktop.com/swebokv3review/

The effort is being directed by an Indian, based in India : Nabendu Chaki, University of Calcutta,

My colleague teachers, and people who plan our curricula, are invited to have a look.

partha

28/2012 Flute making

Useful links on "the art of flute making" ::

FluteMaking.html

Making-Simple-PVC-Flutes

Mark Shepard’s Flute Page

You can never stop being creative.

partha

27/2012 Math makes you more crazy

In my last blog post, I named one crazy area where I started working recently. I found one more area which I find fascinating:: using maths to design musical instruments. I took the humble "bamboo with a hole" instrument called flute. Here is what I found

Flute Theory and Maths

Blame it on maths, if you find me behaving crazy.

partha

26/2012 In outer space, which side is north ?

It is amazing how much the w-w-web can distract you and entice you into random directions. I am now getting addicted to some fascinating questions about astronomy. Here is one I picked up at ::

http://astronomy.stackexchange.com/questions/

The question I am refering to is :: Is there such a thing as “North” in outerspace?
QUOTE
On Earth, North is determined by the magnetic poles of our planet. Is there such a thing as "North" in outerspace? To put it another way, is there any other way for astronauts to navigate besides starcharts? For instance, if an astronauts spaceship were to be placed somewhere (outside of our solar system) in the milkyway galaxy, would there be a way for them to orient themselves?
UNQUOTE

There is still so much to discover and learn. There is so little time left.

partha

25/2012 One more small discovery

Discovered a very good source of maths for cryptographers. Wish I had seen this before.

http://www.di-mgt.com.au/maths.html