sevensages's latest activity

Ok thank you

Orbital angular momentum.

I invite everyone who reads this to give me feedback and ask any questions you might have about the book. If you disagree with anything...

I would like to explain to someone about why the Sun's gravity does not pull the Earth into the Sun. I know that the reason that the...

The scientist Bob Dicke told Alan Guth that there were two main problems with Friedmann's Big Bang model of the Universe: 1# The...

TL;DR: This thread is a review of the book Our Mathematical Universe. This thread is a review of Max Tegmark's book Our Mathematical...

Imagine a straight piece of string. You can shake one end of it to get waves travelling along it. You can measure the distance between...

Adding to the above, for something like the CMB fluctuations, it's far better to talk about their angular scale than about their size in...

No. First of all, I am guessing that you mean page 71. Page 72 does not even have the word maps or map on it. Neither page 71 nor...

Does not the first paragraph on page 72 explain the monopole as being the size partitions into which the map is broken up ie if the map...

@jefferywinkler3

@berkeman you are knowledgeable about physics . What is your opinion on this?

Here is some context. This is pages 71 and 72

Yes. And the traveling waves would need to meet up with the wave generation source in phase in order to add constructively.

When you say that the sine waves need to be in phase, do you mean that the sine waves have to have the same wave length with the crest...