I am sorting out book shelves at home - so I can fit more in - and I found two of these. One I will give to someone. Which one would you choose to donate and which to keep?

Answers on a "postcard" to...

Needed to write an equation (or eight) so just refreshed my knowledge of LaTeX and KaTeX

Which equations I am writing from these:

$$ \oint_S \overrightarrow{E} \cdot \hat{n} da = \frac{q_{enc}}{\epsilon _0} $$

and

$$ \nabla \cdot \overrightarrow{E} = \frac{\rho}{\epsilon _0} $$

Received a Clockwork Pi uConsole yesterday and have just set it up except I am waiting for the batteries which arrive on Wednesday so it is there to a power cable until then.

The Muppet Christmas Carol is locked and loaded in the DVD player.

Can you tell it is a vegan Christmastide here in our home in Germany?

Just received a secondhand copy of a biography of Charles Ives and it came with someone else's tags in it. So hours of joy finding out why the previous owner put the tags in those locations.

I realise that I am reluctant to share even on here.

I was caught in the Facebook Cambridge Analytica data scraping when someone else allowed their profile to be scraped.
The "other place" became a cesspool - and toxic.

It may take time to trust again.

Deleted the app for the other place from my phone and tablets so I will feel a lot less tempted to lapse

I am starting a slow migration from the other place.