Recent content by arman

re AKG I was using the term series wrong. I meant a set. sorry, I've been doing Fourier series all night and the word kind of stuck.] As I was saying, if we have an infinite set {1, 2, 3,... infinity} then the 'last' value is infinite, but if we count them, and use the set {1, 2, 3...} then...

Well you gave this as an example: You're implying that this series, which approaches 0, somehow proves that infinity physically exists. As I said before, this has little relevance to this problem. Just because an infinite series approaches a finite value, and because we can stick a name tag...

The marbles we count are approaching infinity.

You're using an irrelevant analogy. You're giving the example of an infinite series describing a finite length, which has very little to do with the marble example where we have an infinite series describing an infinite number of marbles. The fact is that you cannot draw a mark at 0, 0.5...

Besides, if the infinity value of the series you gave did in fact have a zero value, couldn't you logically conclude that 0/1 is in fact infinity?

I don't understand what you're saying. Just because we have a function that approaches a value, doesn't mean that it will actually get there. You can't say that an infinite series has a number labelled infinity because an infinite series that approaches zero has a number labelled 0. the 'last'...

This comes down to semantics rather than mathematics. I am not saying that an infinite series can't exist, just that the last element of an infinite series is simply a representation, there won't actually be an element that is the last. Keep in mind that the initial question was, Will there...

I think it'd be wise to first try and agree on a term for infinity itself. I think that arguments in this discussion are more likely to occur from semantic clashes rather than actual disagreements. I like to think of infinity as a concept, and by that I mean that it's not actually a number...

I have the Cengel & boles thermodynamics and frank m white fluid dynamics, they're both an enormous help. I find Frank White's approach to writiting very personal and he does a great job at making initially difficult techniques such as dimensional analysis very easy to grasp.

I guess this was inappropriate analogy. I am referring to the 'volatile' (exothermic) nature of the H plasma at 1 billion K, in contrast to some heavier elements which might be endothermic under fusion. I'd like to ask what temperatures we can control. I am assuming we can control the...

you could try burning some of your household items...

You could use the heat exhaust from your air conditioner. funnily enough I just recently wrote a small assignment on the topic for one of my mechanical design classes. I've attached the document if you're interested.

I don't have a level of understanding about aerodynamics as the people discussing this topic, so I'm trying very hard not to say anything stupid. To simplify, as far as I understand the turbines (which can be considered as sources of force) propel the plane in a horizontal direction, and then...

This is my first post here, so I'm not entirely sure whether or not this topic warrants a new thread. I've just had a simple idea that I'd like to get some feedback on, from people who have a little more experience in nuclear chemistry than I do. I was wondering if it would be possible to...