Posts

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

laslab,
@laslab@waag.social avatar

@ColinTheMathmo
And BTW: get out of the birdsite :-P

ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

@laslab It's a source of constant and consistent annoyance to me that circumstances require that I keep a presence in both the FBBBS and FFB.

It's minimal, but for me it is regrettably unavoidable.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Gosh ... I liked this one ...

754

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=754

Current streak: 100 (Fermium)

Best streak: 100

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

ionica,
@ionica@mathstodon.xyz avatar

@christianp This made me snort tea over my keyboard. Thanks.

ppscrv,
@ppscrv@mathstodon.xyz avatar

@ColinTheMathmo ( \uparrow \downarrow \leftarrow \rightarrow \leftrightarrow \updownarrow \hookleftarrow \ ?
)

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

18+ svat,
@svat@mathstodon.xyz avatar

@ColinTheMathmo I'm reminded of an item in a book of puzzles, which went something like: "A boat travelled from A to B, taking one-and-a-half hours. On the way back, it took only 90 minutes. How?"

18+ ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

@svat I remember one which went something like:

A chemist found that a particular reaction took 1n hour and 20 minutes when they were wearing a particular sweater, but 80 minutes when they weren't ... how is that possible?

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

morganist,
@morganist@mastodon.online avatar

@ColinTheMathmo it involves flipping (mirroring) the green element though, is this ok?

tretron,
@tretron@bark.lgbt avatar

@ColinTheMathmo it was a joke where as with a welder you can make "one piece" of material out of several smaller pieces.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Despite our artistic pretensions, sophistication, and many accomplishments, we owe our existence to a six inch layer of topsoil and the fact that it rains -- Paul Harvey (lightly edited)

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

lgarron,
@lgarron@mastodon.social avatar

@ColinTheMathmo I really liked the challenge of today’s!

ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

@lgarron It was a good one ...

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, #UK_ISS #ISS pass, starting at 22:12:13, duration 180 secs, visible, Magnitude -1.3

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Some passes of the #ISS visible from the UK overnight - I'll post alerts closer to the time - #UK_ISS

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Having seen this mentioned, I had to try it for myself. Asking Google for "Fruits that end in -um".

« Applum.
« Bananum.
« Strawberrum (really any of the fruits ending in *-berrum’)
« Tomatum.
« and Coconut.

I particularly like "Coconut".

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

Satisfying ...

752

➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️➡️

https://www.andrewt.net/puzzles/cell-tower/?p=752

Current streak: 98 (Californium)

Best streak: 98

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

We don't make mistakes, we just have happy accidents. -- Bob Ross

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

bencurthoys,
@bencurthoys@mastodon.social avatar

@ColinTheMathmo A bad start for me

751
➡️➡️➡️⬇️⬜⬜➡️➡️⬇️⬜⬜⬜⬜
⬆️⬜⬜➡️➡️➡️⬆️⬜➡️➡️⬇️⬜⬜
⬆️⬜⬜⬜⬜⬜⬜⬜⬜⬜➡️⬇️⬜
⬆️⬜⬜⬜⬜⬜⬜⬜⬜⬜⬜➡️➡️
https://www.andrewt.net/puzzles/cell-tower/?p=751

ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

@bencurthoys It happens to us all! You should see some of the nightmares I've had.

I've made notes, I should dig them out and make them visible.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

You are a ghost driving a meat-coated skeleton made from stardust, riding a rock, hurtling through space. Fear nothing. -- Unknown.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, #UK_ISS #ISS pass, starting at 22:15:11, duration 318 secs, bright, Magnitude -2.1

  • All
  • Subscribed
  • Moderated
  • Favorites
  • megavids
  • rosin
  • Durango
  • cisconetworking
  • mdbf
  • InstantRegret
  • DreamBathrooms
  • ngwrru68w68
  • magazineikmin
  • osvaldo12
  • Youngstown
  • ethstaker
  • slotface
  • kavyap
  • JUstTest
  • thenastyranch
  • normalnudes
  • modclub
  • khanakhh
  • everett
  • tacticalgear
  • cubers
  • GTA5RPClips
  • anitta
  • Leos
  • tester
  • provamag3
  • lostlight
  • All magazines