Dale's latest activity

Without the GHGs, radiation would pass both ways through the atmosphere with relatively little interaction (absorption or radiation and...

Also, note that @Ibix said that the point is motionless, not that the source is motionless when it is at that point.

No, I don't know the mechanism. But anyway, this is a red herring. The radiation of these molecules is not a major factor here, as...

The atmosphere is in contact with three other thermal reservoirs, the earth, the sun, and space. Earth: heat transfer is by...

Which bit of the Earth are you referring to? It's a thick sandwich of gas and solids (water too!) Go back to a greenhouse; which is...

Yes sorry, only later I realized the point was about isotropy of light intensity and not light propagation process (speed).

Consider a dipole antenna that emits a brief pulse. The emitted radiation is not isotropic in any frame. But the shape of the wavefront...

On reflection (sorry) I'm not sure this is correct, and need to do a bit of maths. It is definitely true that if the source emits a...

You don't. But you can have a moving source, one which is not always at the same point. The mirror will reflect the same fraction of...

Aberration always applies. Aberration is a disagreement between two different reference frames about the direction of light. If you have...

With the "warmed surface" radiating more heat directly into space it will be cooler and thus will heat the atmosphere less via...

This was your question. But it is changing the amount of heat that transfers through that mechanism. To change the temperature (your...

No. Substantially more than it does now. That is the point.

IR will radiate directly from the ground into space.

Any point is stationary relative to the observer - this is effectively the definition of a point in this context. No they aren't. They...