Dale's latest activity

I only have time for a quick reply now, just focusing on some issues with your first bullet: .. in the ship's inertial frame (assuming...

This is not correct and it is not an implication of the light cone (sphere). The light cone says that if there are rays in every...

I don't think that the plain language description is important. What is important for physics is an experimental description. Plain...

The surface radiates and not all of that energy is absorbed by the atmosphere...

With GHG in the atmosphere the surface of the earth is in radiative “contact” with a reservoir that is at the temperature of the...

Again, the question is very poor because it can be interpreted multiple ways. The only way that it can be interpreted so that the given...

That answer would only be correct if the question meant that both beams in the pair were composed of protons or both beams were composed...

This is a poorly worded question. Are they talking about one pair of beams one containing protons and the other electrons? Or one pair...

This is not true. If the contestant picks a loser at the first stage then Monty can only open one door because there is only one loser...

To put it another way, the contestant is presented with ##\{ \frac{1}{3},\frac{1}{3},\frac{1}{3} \}## but before a choice is made, the...

It's important for an explanation to clearly distinguish between the case where the host performs a "filtering selection" by...

Yup. That's exactly what happened to me. The process of writing the program forces you to untangle and define the logic. By the time I...

I think the answer is quite subtle. As Dave says: Then you have to sit down and calculate. I.e. analyse the possible outcomes and...

The naive analyst might wonder why you have it changing to ##\{ \frac{1}{3},0,\frac{2}{3} \}## and not ##\{ \frac{1}{2},0,\frac{1}{2}...

Damn that's well put together.