Yesterday I found a playlist of videos by a youtuber "Dialect" who made a distinction between what he called Tier 1 and Tier 2 arguments of Relativity.
Tier 2 promoted a view that acceleration was an observer dependent phenomena. In particular he was discussing the Twin Paradox, and he said...
I stand corrected by the phase diagrams here.
http://ltl.tkk.fi/research/theory/helium.html
It appears that at 10, 20, 30, 40 atmospheres, Helium does become a liquid at the sorts of temperatures you'd find on Saturn.
(Actually, I'm not a hundred percent sure how to read these phase...
All very good points.
I totally agree... We don't really need an explanation for why Saturn has less helium in the atmosphere... The planet's are all unique.
I'm using Chaisson'/McMillan's "Astronomy, a Beginner's Guide to the Universe"/7th Edition
In Chapter 7, it describes the gas giants, and says that Jupiter, Uranus, and Neptune all have "86% Hydrogen, 14% Helium" in their atmospheres, while Saturn has about 92% hydrogen, and 7% Helium, in its...
I would say all new knowledge starts either with
1. a disagreement (where someone thinks of a different answer for a question which already has a common-knowledge answer) or
2. a new question (where someone observes a pattern in nature or ideas and wonders how it can be explained)
3. a new...
Typo, yes. I meant 667 /cm. or more commonly written 667 cm-1 I guess it's around 15 micrometers.
What I mean by "saturated" is that the Carbon Dioxide is 100% opaque in some wavelengths, and 100% transparent in other wavelengths. If it is 100% opaque, then you wouldn't be able to make out...
I think this sort of answers what I asked in post 47... This is what my intuition says, as well. (I shouldn't say "intuition" but rather my "working model" of greenhouse gasses) If there are no greenhouse gasses present in the air, then the air won't warm up. i.e. if it is entirely made of...
The total internal energy of the gas is based on translational, rotational, and vibrational energy of the gas, but the temperature is based entirely on the translational portion of the kinetic energy.
Here's an equation from my notes.
U=n N_A \frac{df}{2}(\frac 1 2 m...
Let me see if I can figure out what you're trying to say.
There are some kinds of molecules such as N2 and O2 that behave differently from greenhouse gasses. These gasses are essentially transparent in the infrared. If there were no Carbon Dioxide or water vapor or in the atmosphere...
Do we have a way of defining the boundary between "negligible emission/absorption" and "significant emission/absorption"
Clearly CO2 has significant emission/absorption in the 667 cm line. I think that we can say the CO2 spectrum is "saturated" there; It's already absorbing 100% of that...
Thank you for that. That gives me something that I can play with in my head; to see how it works out with pressures and the Gaussian distribution of velocities. I guess I still have the trouble with how increasing the concentration of Carbon Dioxide molecules will necessarily increase the...
I totally agree with you that the bottom of the atmosphere is heated by conduction, and I left that out. But there is also heat escaping from the ground by radiation. Some of that radiation travels a few meters, and some of it travels a few kilometers before being absorbed.
Earlier I...
Okay, rather than "insulation" which is catchy but ambiguous, let's call it "bandwidth dependent radiation insulation"... Not quite as catchy, but more specific than "greenhouse".
I think classifying the different types of insulation, into radiative insulation, convective insulation, and...
Two reasons I can think of.
#1 we aren't pumping additional water vapour into the atmosphere that wasn't there before.
#2 Search google images for "infrared emission spectrum of water vs carbon dioxide". You'll see that while water vapor does absorb infrared light, it doesn't absorb the same...