Recent content by Shakir

Hello PF First a bit about my illness. I have been suffering from Major Depressive Disorder since I was 18 (I am 23 now). The first few years were unbelievably painful and difficult to carry on, and very risky and dangerous (too many suicidal thoughts, sometimes 100+ suicidal thoughts a day)...

I was wondering why we can not remember any memories of being in the womb?

We all have imaginations but they must meet with proper research, logic and reasoning.

Problem starts at 2.16 to the rest.

Hello My problem is with the summation and integration part. I do not know how to use this method. Besides I learned multivariable calculus from a MATH teacher. The notations used in physics are a bit different e.g representation of x dot x, double dot to express velocity, acceleration etc. It...

Hello PF I have attached two screenshots from Goldstein's Classical Mechanics. Although I have done a course on multivariable calculus, I don't understand what is going on in this math part. Could you please provide some online resources or suggest a book so I can understand this sort of...

Hello PF Why are scientists still unable to predict earthquake? Will it be possible to predict earthquake? Are there any promising research going on? If only we could know when earthquake was going to hit, how many lives could have been saved!

Dear Micromass, I couldn't help but thanking for your words. They are gold. Such a great observation.

Hello PF This seems to be the biggest threat for my country. http://m.phys.org/news/2016-07-giant-quake-lurk-bangladesh.html Could you please review and tell how much possibility is there for that earthquake to happpen?