Khan Library

[AstroTiger]

This was one of the Google winners for funding.

Khan Academy

It is not strictly speaking pure astronomy, but those taking or intending to take advanced astro courses might find the maths videos of some use.

Wish there was something like it when i was at school.

[Tim]

I was interested to see that there is a tutorial on Imaginary numbers. I once had a problem with these but have since passed them on to my imaginary friend to solve

Good link AT, thanks for that.

[George Jones]

I was interested to see that there is a tutorial on Imaginary numbers. I once had a problem with these but have since passed them on to my imaginary friend to solve

Good link AT, thanks for that.

Imagine all the numbers

It's easy if you try

No bound below us

Above us only i

Imagine all the numbers

Living on the lines

More lyrics: John Lennon Lyrics