The Astrophysics of Christmas

Dear All,

I’m sending this link to a 6-minute video I’ve made, as a Christmas greeting to Reality Check subscribers – a sort of Youtube e-card:

[Make sure you have the sound on!]

For me it has the triple appeal of: Scientific authenticity; Mathematical precision; and a real beautiful relevance to Christmas.

(I also feel the Hubble Space Telescope pics are pretty cool…)

[Be sure to read the notes below the video.]

I hope you like it (apologies if you receive it more than once for any reason).

Feel free to forward the link on to others if you consider it appropriate.  You’re also welcome to embed it in a web page if you do that sort of thing.

[Copy of text: .]

Merry Christmas!

Grahame Blackwell

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