In about half an hour, UK pass, starting at 21:58:57, duration 54 secs, visible, Magnitude -1.3

In about half an hour, UK pass, starting at 20:23:08, duration 228 secs, bright, Magnitude -2.5

Some passes of the visible from the UK overnight - I'll tweet/toot warnings closer to the time

Is it not strange that sheep's guts could hail souls out of men's bodies? -- Benedict, Much Ado About Nothing, William Shakespeare

In about half an hour, UK pass, starting at 21:11:12, duration 120 secs, bright, Magnitude -2.4

Some passes of the visible from the UK overnight - I'll tweet/toot warnings closer to the time

Good judgment comes from experience. Unfortunately, the experience usually comes from bad judgment.

In about half an hour, UK pass, starting at 20:24:51, duration 91 secs, visible, Magnitude -1.7

Some passes of the visible from the UK overnight - I'll tweet/toot warnings closer to the time

Research shows that 6 out of 7 dwarves are not Happy, and over 14% of them are actually Grumpy.

It's well known that $|\mathbb{N}| = |\mathbb{N}^2|$ and it's not hard to make an explicit 1-1 mapping. Ditto $|\mathbb{Q}| = |\mathbb{Q}^2|$.

We also know that $|\mathbb{R}| = |\mathbb{R}^2|$.

Your challenge, should you decide to accept it, it to give an explicit one-to-one mapping.

Go ...

@cerisara No problem ... happy to help (when I can!)

@cerisara So in particular:

$\frac{f(x)}{x²}$

@cerisara There is, you open with backslash round bra and close with backslash round ket.

\ ( e^{iπ}+1=0 \ )

$e^{iπ}+1=0$

Yesterday evening I measured the temperature of a cup of hot water cooling over a 1 hour time period. I then tried to fit an exponential decay curve (to a background temperature of 21°C) and a quadratic curve to the data: the values of R² agreed to 4 dp!

pbs.twimg.com/media/EE0CyujXoA

oops, just noticed I forgot to tag @11011110 in the above toot, for making that diagram. Follow him!

Fortune favours the lucky.

There's a fine line between numerator and denominator (and it's called a 'vinculum').

Another one. Here, flocks of arrowheads are tracing out the Herschel graph.
The Herschel graph is something I keep returning to, because our building is named after its inventor.

@PuffAddison Hiya ... sorry for the delay in replying. I think the thread has examples of LaTeX, and hand-drawn images of what I'm hoping for, and what I get instead. The example LaTeX code I'm using is here:

mathstodon.xyz/@ColinTheMathmo

A Mastodon instance for maths people. The kind of people who make $\pi z^2 \times a$ jokes.
Use $ and $ for inline LaTeX, and $ and $ for display mode.