Recent content by alex_j

Oh my! you are absolutely right! I wanted to show my brother the question just now and I noticed I had made a huge error! I confused the direction of the flows of all things! So in this case the L does make a difference and my answer is completely off, you are right. Would my answer have...

[I'm creating this thread to hold a discussion of some questions raised by alex_j in a thread where they were off topic. -- bcrowell] Could someone elaborate on the relationship between the big bang and thermodynamics? (anthropic principle) How does the state of entropy of a brane relate to...

Assuming an equal pressure and volume that can pass through pipe C, you can only get as much as the limit of pressure and volume at pipe C and since both are shown to be the same then you should get equal amounts from both configurations. That is to say that the amount of water than can pass...

For example: Let (Sn) \geqa If (Sn) \geqa AND 'n' is infinite we can say that Limn->\inftySn \geq a For example: Let Sn = \sum1/xn AND a=2 For an infinite series there is always a possibility for Sn to be \geqa but this does not necesarily hold true for a finite series (i.e...

Could it be that it means that the statement holds true for any infinite series but not for a finite series? Since in an infinite series you always have the possibility of 'S' being greater than or equal to 'a' whereas in a finite series 'S' may be less than 'a'?

Thank you very much for taking the time to reply Nabeshin, I appreciate it. You have answered my question about size and measurements perfectly so that I understand it. But there is still one nagging question that remains regarding the first part of my question about dark matter and mass...

Hello, I'm new here and a layman by any terms of the word with a very general knowledge of mathematics. I have a few questions I was hoping some of you could help to answer. They are regarding dark matter and here they are together with some assumptions I have made that may not be correct...