@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

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

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, pass, starting at 00:51:33, duration 83 secs, visible, Magnitude -1.9

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, pass, starting at 23:14:45, duration 324 secs, exceptionally bright, Magnitude -3.7

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

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,
@ColinTheMathmo@mathstodon.xyz avatar

@pozorvlak I use a plain text email client, and I regularly see the first character on a line turned into %xx, where the "xx" is the hex of the ASCII. This is especially the case with "F" at the start of a line replaced by "%46".

So the bug might not exist, but the method of avoiding is definitely still does.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

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

ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

@soaproot I find it a confusing characterisation ... it's ready to get lost as to exactly what implications are needed to be proved.

It's tricky, and I find it unexpected once I start to get into it.

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,
@ColinTheMathmo@mathstodon.xyz avatar

@KarenCampe Woo Hoo !!!

CC: @amcsquared

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, pass, starting at 00:04:28, duration 228 secs, exceptionally bright, Magnitude -3.6

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, pass, starting at 22:27:55, duration 397 secs, exceptionally bright, Magnitude -3.8

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

techknowsue, to random
@techknowsue@mastodon.social avatar

🟡TPC #SAT Quick Tip 22 ⚡️
🟡 Find a Minimum ⬇️
#maths #tutorial #mathshorts
#iteachmath #mtbos

video/mp4

ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

@techknowsue What tech can students taking this test access?

Seems the easiest answer is to observe that the roots are 10 and -13.

You can quickly eliminate A and B because they are outside the span of the roots, and answer C is very close to one of them, hence won't be the midpoint.

Or the minimum value is halfway between, which is (10-13)/2, or -3/2.

On the other hand, having multiple tools to hand for solving problems is good, I'm just surprised that you would use this one. Then again, I don't know who the audience is for your video.

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,
@ColinTheMathmo@mathstodon.xyz avatar

@KarenCampe That's a great path ... love it!

Especially I love the clear persistence. Proper problem solving.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

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

ColinTheMathmo, to random
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In about half an hour, pass, starting at 00:54:11, duration 129 secs, bright, Magnitude -2.7

davidallengreen, to random
@davidallengreen@mastodon.green avatar

There is going to be an agonisingly long wait until we find out if VAR will be binned.

ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

@davidallengreen I see what you did there ...

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

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

ColinTheMathmo,
@ColinTheMathmo@mathstodon.xyz avatar

Fabulous pass.

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

In about half an hour, pass, starting at 23:17:34, duration 358 secs, exceptionally bright, Magnitude -3.9

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

Do not meddle in the affairs of dragons, for you are crunchy, and taste good with ketchup. -- Suzanne McMinn

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,
@ColinTheMathmo@mathstodon.xyz avatar

@KarenCampe @amcsquared A mistake early, then fixed later during a little detour.

Excellent!

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