Antillar Maximus

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Just here to learn and share.

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May 18	comment	What is the optical power level of common fiber optics lasers? To my limited knowledge, NL effects are a concern and manifest as pulse distortion (due to many competing effects). They are more pronounced when the pulse width is short (100ns perhaps?). This effectively puts a limit on useful bandwidth. I vaguely remember analysis using an eye-diagram to quantify the effect of distortion.
May 15	comment	Light Ray Reflection from concave mirror Removed the ridiculous down-vote by adding a +1.
Mar 20	comment	Couldn't we measure electrons with good enough technology? In my understanding, a measurement necessarily involves an interaction, and thinking simplistically, electrons interact with other electrons by exchanging photons. In theory you could have a device 'tuned" to some other interaction, then perhaps you don't have to detect photons. By measure I presume you wish to measure position? The question is not very clear.
Jan 6	comment	Eliminating IR light reflection perceived by a steep viewing angle The easiest way to accomplish your goal is as you said, add an IR filter to your camera. I would pick an "'interference" filter (eoc-inc.com/infrared_filters.htm).
Jan 5	comment	Connection between quantum physics and consciousness As far as I can tell, there is no logical definition of consciousness that compatible with physics.
Jan 5	comment	Units and use of the formula of the angular acceleration? $\omega$ is angular velocity and has units of radians per second. $\frac{d\omega}{dt}$ is a small (infinitesimal) change in angular velocity with time. There seems to be something wrong with your formula as $\alpha=\frac{d\omega}{dt}$. Not sure where the extra $r$ came from? en.wikipedia.org/wiki/Angular_acceleration
Dec 31	comment	Why can't a spaceship accelerate for ever? Since there is no friction in space There could be magnetically induced drag that can occur when a conductor moves in an external magnetic field.
Dec 28	comment	Can you speed up radioactive decay of plutonium? @RichartBremer, what if the rocket blows up during launch?
Dec 28	comment	Why do we classify states under covering groups instead of the group itself? A group is an abstract mathematical object. Measurements/Experiments are in the real field. So, if you want to draw meaningful conclusions that you can verify experimentally, you have to work with operator representations (in $\mathbb{R}$) that are appropriate. Ultimately, if you cannot prove something (or its consequences) that can be experimentally verified, it is worthless. While this does not directly answer your question, I think it is a useful reminder on why we work with representations instead of abstract objects. Hence the comment.
Dec 26	comment	*The two faces of $F = ma$** It should be noted that only an external force can change the momentum of the system. There is some ambiguity here as one must first define the system of interacting objects.
Dec 23	comment	Integration question from book “e: The Story of a Number” by Eli Maor Make the change of variable in eq 3 as: $g-av=z$, then differentiate both sides and express the left hand side in terms of the new variable $z$.
Dec 23	comment	Superposition principle I have to disagree with that. In fact the closure property of a group is the fundamental principle at play. The principle of superposition is antiquated and anybody who studies group theory will tell you that it is unnecessary terminology. The "+" can be replaced by another operation say $\diamond$. The point is, you have to decide which is the strong and which is the weak operation when you build a field from a group and two operations.
Dec 23	comment	Circular polarization: properties and detection There are a couple of things to consider. In your detection measurements, you are looking at energy, so polarization states are degenerate in this measurement. Polarization degree of freedom carries (loose terminology) angular momentum and a direct measurement of the angular momentum can be easily seen in light-matter interactions (my experience). To distinguish between polarizations, the easiest way is by using a high quality crossed polarizer arrangement. What wavelength are you working with?
Dec 23	comment	Thermal imaging camera Removed the -1 by adding a +1. Can you please stop the ridiculous drive by negative voting???
Dec 23	comment	Superposition principle I think we are speaking of different things. In nonlinear interactions, you are dealing with tensor spaces, which does not change the fact that the abstract field operations do not change.
Dec 23	comment	Superposition principle Vladmir, what is the specific problem? Please check my comment above and see if it clarifies matters (a bit).
Dec 23	comment	Superposition principle Nature as we know it can be organized as abstract mathematical objects, such as groups, rings and fields. If this is true, then the conclusion follows directly from the mathematics. For example, the Poincare group plays a central role in describing the fields you speak of. I will revisit this question, for it is a good one and I need a bit of time to organize my thoughts. :)
Dec 23	comment	Conservation of Energy in the Universe To calculate average energy density, you have to account for the radiation as well. I presume that this would be a difficult calculation. From an experimental point of view, there have be no reports of violation of energy conservation that I know of. Reasonable question, +1.
Dec 15	comment	Wavelength comparison of two waves @vulcanraven, if so you have to look for a material that selectively absorbs XRays and not Gamma rays or you need a high energy prism or, a high energy interference filter. This is how we handle frequency separation in the optical domain. I have no idea if such things exist in the high energy regime.
Dec 14	comment	Wavelength comparison of two waves What are the wavelengths you are interested in? Do you want to separate the wavelengths or actually measure them?