Recent content by SecularSanity

Sorry to keep bringing this up, but no, you haven't been very clear. I asked David Briggs who runs this website. Here’s his response. I asked him the additional question that I posted above in post #28. Here’s his reply. That sounds great, but the only problem is, is that I looked at a...

Are you saying that in the blue square, on the left-hand side of the white line, the blue fades into the blue, and then disappears, and on the right-hand side of the white line the blue fades into the red and green creating magenta and cyan? If so, then in the red square, on the left-hand side...

Just to make things nice and clear, would answer my questions in post #32. Thanks! Much obliged!

First of all, I don’t think that there’s anything magical or funny about the prism. I just want to understand what it is that I’m seeing, that’s all. Someone else told me that with many (though not all) modern screens the blue phosphor has a more or less distinct second peak in green. He...

I still have a few of unanswered questions, if you don’t mind. I’d really appreciate it. First, let me make sure that I’ve understood everyone correctly. The final answer is that the blue isn’t a monochromatic source, it contains some green, correct? The black is caused by a gap (no color at...

Yes, exactly! And you’re right, most of us do prefer our mirror image. Good day to you, Miss Sophie!

Exactly! So, that’s where all the confusion lies. The real image formed by the mirror is still a mirror image with lateral inversion. Why can we see our inverted and real image inside a concave mirror when the image is formed in front of it and not behind it? The answer is simple. We are able...

The reason that I think it’s incorrect is because the image that you see in the mirror when flipped vertically is non-reversing. Look at the first image in post #132. You can read the writing, but for the image on the screen, (see second image in #132) you have to turn and face it, which causes...

I don't think that's correct. If you take the image your eye sees in the mirror, and flip it vertically, where it's now upright, the writing would be legible. If you did the same with the image on the screen, and flipped it vertically, the image would also need to be flipped horizontally for the...

Well, that’s where the confusion lies. The image formed on our eye when looking into the mirror is an inverted, non-reversing image. It’s as if we’re facing the inverted object. When we turn our head, and face the screen, as you can see, the image is an inverted mirror image of the object.

Let me see if I understand you correctly. When the image is anywhere between f and c, beyond c, or even at c, the image that we see in the mirror is only flipped vertically but it is a non-reversing image. On the other hand, the image that we see on the screen is flipped vertically and...

We'd have to turn around and face the real image, correct? Is there a difference between the image of the real image that we see in the mirror vs. on the screen? Is the image that we see in the mirror just like a plane mirror image of the real image? Is the image that we see in the mirror a...

It was already rephrased correctly but let me ask you this. Is the spectrum reversed when looking through a prism because the blue and red rays overlap before hitting our eyes or because they overlap when we trace them back?

So, do you still think the black line is just a gap between the spectra of two different sources which are physically separated? Do you have a prism on hand? Do you agree that this is the reason we see yellow and cyan?