Recent content by thebiggerbang

Thank you, that helped!

Hello! My professors asked me why we don't usually consider the second Friedman equation. He told me that the solutions for the first always give a solution for the second. He told me that the first equation along with it's time derivative can imply the second equation. I have been trying the...

The spin 4-vector is defined in the rest frame of the particle as s^{\mu}= (0, \vec{s}). Why is the zeroth component of the same zero in this frame?

Hey! I'm an Indian, 2nd year Undergrad pursuing a Master's course in Physics at the BITS-Pilani K. K. Birla Goa Campus. The theoretical Physics department on our campus will surely rank in the top 10 (if not top 5) department for high energy and gravitational Physics (I assure you that after...

"why are inductors preferred over resistors in reducing current in an AC circuit?" The quoted question from a recent exam has caused a little dilemma regarding it's interpretation and answer. 1) what does 'reduce' refer to? 2) inductors are preferred as the impedence is dependent on the...

But Sheldon Cooper's mom had him tested :P

I'm currently in the 12th Grade and the only course in Physics that the college that I am aiming for has is an integrated MSc degree. So in 5 years time, I will be walking out with an MSc degree in my hands with no intermediate BSc degree. What I wanted to know is whether I will be able to apply...

Hahaha! :D As you people say, I have a long long way to go. I want my thoughts to remain rational and pretty much on the grounds of mathematics. I shall keep my search going on! Thank you for helping me out folks :) Any more advice is welcome!

I completely agree on that! And hence, my aim is to make the road easier for the next man who comes on the very same quest. Finding straightforward answers might not be in store for me and I have no problems with that! Previous quests were synonymous with Einstein's quest for the theory...

Hello PF folks! I'm a 10+2 Indian student with a simple question. I want to merge physics and philosophy to answer fundamental questions about the nature of time, the future and the laws that govern the universe and how human perception affects them. The philosophy angle comes in with respect...

Yes, that does play a part. But at the atomic level, what causes this said effect?

In his PBS series videos, Brian Greene states the reason being electromagnetic forces between the charges in my body and the object (falling human and the ground in this case) In her book 'Warped Passages', Lisa Randall states the reason being the Pauli's exclusion principle for the fermions...

This 'cause' is supposedly said to be dark energy. And as we all know, we are still in the dark about it. Sigh. Anyways, what makes a particular form of interaction eligible to be called a fundamental force? Should it be unexplainable using conventional theories and the other 4 forces?

Instead of focusing on the 'compaction of matter' only, do also look at what happens to the system (the universe) as a whole. Although I can't comment on how this would prevent the law from breaking down, we should possibly look at the work done (but on what?) during the compaction.

So I have singled out Jacobs University in Bremen, Germany. It fits in all of my needs! Thanks physiker 192! Just crossing my fingers for a scholarship!