Recent content by Nikarus

Hi All, Sorry for the delay - I had a lot of thing to do these days. But I'm still full of enthusiasm :) I tried to read this explanation before (<< link deleted by berkeman >>) And I agree with author that a lot of other authors does not really explain how transistors work. But since cabraham...

Guys please, I spent a lot of time drawing this picture!

Hi All, I'm trying to understand how transistor works. I have drew some pictures for NPN transistor to show my current understanding. Can you please verify this for me. On the picture: "-" and "+" are movable charges; circled "-" and circled "+" are immovable ions. 1. No voltage applied. Two...

Hi uart, Thank you very much for your explanation! So, this means that molecule of p-type semiconductor is neutral but it has this mobile "positive charged" hole. And because of this, it can take a new electron and become negative ion. I think I got it now. Thank you!

Hi all, I'm trying to understand P-N junctions as well. I read a lot of explanations, but still there is one thing bothering me. Probably I should ask it in another topic, but still... Can you please explain me this part: I don't understand - acceptors are atoms with electron lack (hole)...

I'm sorry for giving you the confusion, probably I don't understand something. I am looking at the light rays as at the ultimate measurer of curvature. As photon does not have weight, then it should move exactly like space is curved. So this means that if we see a curved object then we see...

Are you talking about time as 4th dimension? I'm talking about 4th spatial dimension.

Thank you for your comments! I'm a little bit confused here - then what about Gravitational Lensing effect? If you look at this simulation http://upload.wikimedia.org/wikipedia/commons/c/cd/Black_Hole_Milkyway.jpg and imagine a stick (inf length would be more correct I think) "sucking" into...

Hi bcrowell, Thank you for the detailed reply! Okay, I got your point. I try to give another experiment that will give me same understanding: If we take a very long and straight stick and put in on surface of massive object, will outside observer see that it is bended because of space...

Hello all, I'm new to GR and trying to understand everything in general now... I was looking at pictures like this one http://upload.wikimedia.org/wikipedia/commons/2/22/Spacetime_curvature.png for a very long time. I made two major "experimental" conclusions here: 1. A meter near planet...