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Rrenormalize replied to the thread Effects of coherence length on optical interference filter.As I mentioned in post #10, there are two coherence-lengths for sunshine: spatial/transverse (##\sim 50\mu\text{m}##) and...
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Eerobz replied to the thread B Acceleration as a function of position.I think ##s## is the dimension. $$a(x) = 2 x [ \text{s}^{-2}] $$
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Not to me and @Curious Kev was on the site less that three hours regarding this question. That's bad form on pf Kev. So, that is three... -
Eerobz replied to the thread B Acceleration as a function of position.$$ a(x) = \frac{dv}{dt} $$ Use the Chain Rule on the RHS to change the independent variable from time ##t## to position ##x## before...
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256bits reacted to lost captain's post in the thread Why ethanol vapor doesn't get trapped in bread dough, while CO2 does? with
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Most of the ethanol vaporizes, since the amount left on the bread is pretty less than the ethanol that was produced. That's why i said... -
PeterDonis replied to the thread Which of these rods are in equilibrium?.@ymnoklan equations and text inside images, as in your post #5, are not allowed here. Please post text and equations directly, using the... -
haruspex replied to the thread Which of these rods are in equilibrium?.By whatever means, but perhaps reasoning as in the first half of my post #10. -
PI quote; I struggle with the last sentence and putting the pieces together. I know the abstract change of variables formula for...
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Excellent. I look forward to seeing it when it is published in the professional scientific literature. Once it is, then we will be able...
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Quantum Call replied to the thread A What does it mean to model the distribution of galaxies as cosmic dust?.1. Cosmic Dust in Cosmology: In cosmology, "cosmic dust" is not literal dust but rather a conceptual tool used to describe the matter... -
Quantum Call replied to the thread Electric mattress pad tingles when turned off.Steps to Investigate: 1. Understand the Setup: You mentioned that the mattress pad has 4 separate heating zones with 2 controllers...
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Mayhem replied to the thread Why ethanol vapor doesn't get trapped in bread dough, while CO2 does?.Speculation: At r.t, ethanol is a liquid and CO2 is a gas. Ethanol as it is formed is chemically mixed with water in the dough, whereas... -
1. If you ignore what we are testing in the experiment, which is 4-fold coincidences, then yes: 1 & 4 have 0 correlation. 2. No, the... -
SSubdot posted the thread A Understanding NOAA and Naval Observatory's Solar Calculations in Astronomy and Astrophysics.I have three questions in relation to algorithms used in calculating sunrise, sunset, and solar noon. I'm looking at the NOAA...