@ColinTheMathmo@mathstodon.xyz avatar

ColinTheMathmo

@ColinTheMathmo@mathstodon.xyz

Fulltime freelance provider of outreach and enhancement in maths ... I talk a lot. About maths.

I talk about other stuff too, like ballroom dancing, juggling, unicycling, education, engineering, software, and "other things".

But mostly about maths.

I tend to follow back, but only if you have something in your profile.

This profile is from a federated server and may be incomplete. Browse more on the original instance.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Don't use WhatsApp:

"WhatsApp messages are end-to-end encrypted, but user data is not only about messages. That also includes the metadata such as user location, which contacts the user is communicating with, the patterns of when the user is online, etc. This metadata according to your privacy policy is indeed used for targeted ads across Meta services."

-- https://x.com/mysk_co/status/1795210609153163374

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

I've seen mathematicians take a piece of paper, draw an arrow, not even a domain or image, stare at it, then say 'No that's not it', scrap the paper and start all over again... -- https://x.com/Friteszilla/status/1794489258436092280

ColinTheMathmo, (edited ) to random
@ColinTheMathmo@mathstodon.xyz avatar

An answer to a 100-year-old puzzle. I say an answer, because there is still part of the question that's open.

EDIT: The author/discoverer is here on Mathstodon!

https://mathstodon.xyz/@vesatimonen

And his post of this:

https://mathstodon.xyz/@vesatimonen/112513347111148808

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Add a quantity to itself, then divide by two, and not get back the original!

Tony explains more ...

https://tonysmaths.blogspot.com/2024/05/a-puzzle-from-my-childhood.html

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

ARGH !!!

You'd think I'd learn ...

753

⬜⬜⬜⬜⬜⬇️⬜⬜⬜⬜⬜⬜⬜⬜⬜
➡️➡️➡️➡️➡️⏹️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=753

Current streak: 99 (Einsteinium)

Best streak: 99

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Huge sigh of relief ... in a rush, but several possible pitfalls avoided largely by chance ...

751

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=751

Current streak: 97 (Berkelium)

Best streak: 97

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Power corrupts. Powerpoint corrupts absolutely. -- Edward R. Tufte

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

C++: An octopus made by nailing extra legs onto a dog -- Steve Taylor

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Simple curiosity ... does anyone recognise this? Is it meaningful?

Seen on a bus, photo by permission of the owner.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Radio 3 just referred ... twice ... to Dame Susan Jocelyn Bell Burnell as a man.

Interesting.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

When someone has trouble in mathematics, we should bolster our support, not lower our expectations. -- Francis Su

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Learn from the experts. You will never live long enough to learn it all directly from experience -- Kop Kopmeyer

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Bother.

It looks like I mis-timed things and I'm going to be promoted to the next league in Duolingo.

I did not want that. 8-(

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, #UK_ISS #ISS pass, starting at 22:24:59, duration 398 secs, exceptionally bright, Magnitude -3.8

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

'Jail' and 'Prison' are synonyms. But 'Jailer' and 'Prisoner' are antonyms.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

That took longer than intended ... but persistence paid off and I got there in the end.

744

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=744

Current streak: 90 (Thorium)

Best streak: 93

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

The irrationals are those exactly those reals that are a different distance from every rational.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Wonderful ... has anything really changed?

From 20 years ago:

"OLEXP: Messages That Start with the Word "begin" Are Received as a Blank Attachments"

...

"To workaround this problem:

  • Do not start messages with the word "begin" followed by two spaces."

-- https://www.betaarchive.com/wiki/index.php?title=Microsoft_KB_Archive/265230

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Spot the right word(s) early and the rest falls into place:

743

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=743

Current streak: 89 (Actinium)

Best streak: 93

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Some instantly recognised words, and this one fell into place quickly:

742

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=742

Current streak: 88 (Radium)

Best streak: 93

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

We don't know where it goes. We don't really care. -- Bob Ross

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Watching the sail serenely overhead ... Brilliant pass tonight ... Always a treat.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Nice way to start the morning ... I might be getting the hang of this:

741

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=741

Current streak: 87 (Francium)

Best streak: 93

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, pass, starting at 22:30:43, duration 392 secs, exceptionally bright, Magnitude -3.7

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Holding fire to see whether or not a trailing "s" was needed ... that did the trick here.

739

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=739

Current streak: 85 (Astatine)

Best streak: 93

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