Recent content by jay.yoon314

Hi, I have a question of mass defects in nuclear reactions, and some preliminary questions about nuclear reactions in general. First of all, can all nuclear reactions be classified as either fission, fusion, or radioactivity? Is there a mass defect / conversion of mass into energy in a...

I see. The connection between absorption and stimulated emission certainly makes sense, and the uncertainty principle resolves the paradox in my original post as well as the analogy between emission lines and absorption lines. But what about quantization and the Heisenberg uncertainty...

That's a really good question. I'll try to answer it to the best of my ability. There is a quantity called the Boltzmann factor that gives you the "weight" of a particular distribution of discrete quantum energy levels at any given temperature T. In the case that T = 0 K, there will be a...

Yeah, that sounds about right. (Remember that W = F * D is only strictly valid as written when F is constant throughout the entire displacement D that the force F "carried the object through.") For example, if you have two sleds of the same mass, and you pull the second one twice as hard as...

A useful way of thinking about it is breaking up that process into two phases, the first being after you brake and then get lashed forward until immediately before the seat belt becomes taut, and the second beginning where the first ends. In the first phase, you're still going forward because...

Consider the hot water and the ice cube to be the two components that together comprise a system. Why is it that a small amount of ice can cool hot water to what we would speak of as "cool" water? It's because the energy contained in the crystal structure of ice, per gram of ice, is much...

If you want to apply general relativity to astrophysics, then topology and differential geometry are important. I would say that vector calculus is very similar to differential geometry, at least when the space considered is Euclidean. I don't think abstract algebra is that relevant to...

I see, I see. I was aware of line broadening but I didn't realize that the uncertainty principle was one of the causes of it. That really clears things up. One follow up question: In the Wikipedia article on spectral lines, it says the following: Since the above description of linewidth...

I'm vaguely familiar with the redshift-magnitude band theory that was proposed. Although both theirs and my ideas can be described as "redshift quantization," what they are specifically discussing are very, very different. The ideas of Tifft, Cocke, Croasdale, et al. that you mentioned are, I...

Consider a stationary observer and an emitter of light radiation that may be either receding or approaching at a variety of nonrelativistic velocities, with the velocity of the emitter having only a radial component and no transverse component. I was wondering whether the Doppler Effect...

The Mediterranean Sea is believed to have completely dried out in less than 1,000 years after the Strait of Gibraltar was blocked, and in that situation, rivers were (obviously) not blocked.

Consider the following scenario: We isolate the Caribbean Sea and the Gulf of Mexico from the Atlantic Ocean by constructing dams that extend to the bottom of all channels and waterways that presently connect these bodies of water to the Atlantic Ocean. There are 17 listed in Wikipedia...

Hello, I have two questions about the formula P = (rho)*g*h. The reasons for asking them are to clarify some points that are pertinent to a better comprehension of fluid statics, and also whether the ideas I am exploring in improving reverse osmosis water treatment, energetically speaking, are...

[FONT="Times New Roman"][SIZE="3"]It seems to me that the cost of using room temperature superconductors is really not an issue at all. Why is it that people are always talking about the cooling costs, when the only thing you have to deal with is boiling helium, which as you said is not really...

[SIZE="3"][FONT="Times New Roman"]I'll post some more photos, from now on, on a more regular and frequent basis. The first photo attached was taken just off the eastern coast of Nicaragua in the Caribbean Sea, in very shallow water, in a place called Cayos Miskitos. Second photo, not much to...