Rambo mode of Linux kernel

Ok this is interesting......

Kernel enters *Rambo* mode in out_of_memory() :mm/oom_kill.c
and what does it stand for..well, kernel starts to "shoot down" processes hoping to increase amount of free memory in the system.

What does 'I' stand for?

No, I am not going to answer that question in this post.

The book I am a strange loop is a search for the answer. I just read 50 pages of it and came up with this thought...

In that book 'being alive' is described as having a set of complex reflexes. Then one of those relexes (one of the strongest) should be a reflex that generates the answer 'I am alive' whenever I ask myself 'Am I alive?'.

"I think, therefore I am"

Church numerals (numbers and arithmetic using lambda calculus)

Here's how one would define zero and increment function using lambda calculus

 

(define zero (lambda (f) (lambda (x) x)))

(define (add-1 n)
  (lambda (f) (lambda (x) (f ((n f) x)))))

- From SICP

 

Here zero is a function that takes a function (f) and returns a function which takes an argument (x) and applies f to x, zero times (or do not apply f to x).

 

The definition of add-1 can be easily understood by looking at the body of inner lambda expression. The body applies f to x (n+1) times, where n is the parameter.

 

So one would be

 

(define one (lambda (f) (lambda (x) (f x)))) ; We apply f one time to x

I'll leave the definition of one as an exercise.:-)

 

Bug fixing

Two ways to fix a bug

1. Change the implementation to match the spec.
2. Change the spec to match the implementation.

Some thoughts on mass

F = (Gm₁m₂)/r², is the force of attraction between two bodies with masses m₁ and m₂ and r being the distance between them.

1. So when two bodies are brought sufficiently close together (such that r becomes very small), the force of attraction will be very large. This force will pull them closer. So masses does have a tendency to combine.
2. Two masses always attract each other. The universe is full of masses, but ever expanding why??

Law of gravitation

First drive after driving test

I drove all the way from mannuthi to palakkad (1 1/2 hour drive). The drive was OK, but I've got to get lot more practice.

Created a blogger template!!!

I created a blogger template with 2-column layout. You can watch a demo here.