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Alan Harrison

@httcs.online

Educator, author and podcaster, BSc #ComputerScience, MA in #Education, Teacher Trainer, Tutor and Lecturer, #TeamCompSci #caschat, I'm #Autistic and #ADHD and a LGBTQ+ ally, mental health advocate, proud supporter of DEI. httcs.online

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Latest posts by Alan Harrison @httcs.online

Had a great time last week delivering one of the A-level residential days for the NCCE @wearecomputing.bsky.social at the STEM Centre in York. I had the joy of explaining the origin of the phrase "2's complement", and doing lots of floating point binary exercises.
#TeamCompSci #STEM #NCCE #Computing

18.02.2026 20:31 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 1
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Have you subscribed to At the chalk-face yet?

At The Chalk Face is our YouTube home for teachers, by teachers – where Craig’n’Dave’s magic comes to life!

πŸ‘‰ www.youtube.com/@thechalkface

#TeamCompSci #CraignDave #AtTheChalkface

18.02.2026 14:04 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
The travesty of liberalism β€” Crooked Timber

"Conservatism consists of exactly one proposition, to wit: There must be in-groups whom the law protects but does not bind, alongside out-groups whom the law binds but does not protect." - Frank Wilhoit crookedtimber.org/2018/03/21/l...

27.01.2026 10:37 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

If I set up a projector aimed at Big Ben, and projected political posts, current affairs, recipes, opinions, child sex abuse material and cat pics on rotation, how long before it gets shut down? Asking for a nation.

13.01.2026 14:08 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The X Effect: How Elon Musk is boosting the British right For nine months, Sky News' Data and Forensics team has been investigating whether X's algorithm amplifies right-wing and extreme content. It does.

They get almost no reach there any more. Musk saw to that.
news.sky.com/story/the-x-...

12.01.2026 11:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

In the spirit of brotherly love, could I gently enquire why the almighty **** are government departments, government ministers and Labour MPs *STILL* using X?

12.01.2026 10:27 πŸ‘ 2694 πŸ” 573 πŸ’¬ 143 πŸ“Œ 43

It is unconscionable to use X. To do so gives succour to Musk and all he represents.

12.01.2026 11:24 πŸ‘ 4 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Pluralistic: The Post-American Internet (01 Jan 2026) – Pluralistic: Daily links from Cory Doctorow

Let's hope that 2026 is the year we start to disensh*ttify the internet!
pluralistic.net/2026/01/01/3...

05.01.2026 09:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

When I was a kid it was mimicking The Fonz (thumbs akimbo, "Heyyyyy"), or Yoda impressions. Yes I'm that old. Yes I still do these.

13.12.2025 12:57 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

R.O.F.L.

13.12.2025 12:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

O.M.G.

11.12.2025 15:39 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The struggle is real. (I'm a computing lecturer and teacher educator, currently working on AI policy. Called Alan.)

10.12.2025 09:13 πŸ‘ 3 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Great info thank you. It kind of backs up my point though, which is complexity adds risk.

30.11.2025 21:34 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

There are also the hashtags #UKEd and #UKTeaching but it's fairly quiet there too.
#Edusky

29.11.2025 19:50 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Compute isn't the problem, it's complexity. The recent Cloudflare outage shows how hard it can be to diagnose a fault in millions of lines of code scattered over thousands of instances.

28.11.2025 11:08 πŸ‘ 5 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

I think you're holding up "1066" as an example of a "fact" which is irrelevant, but in this discussion you have alluded to many facts which are indeed relevant. You are mocking a common parody of "useless facts" (dates of battles) while admitting that facts in general are valuable knowledge.

28.11.2025 09:23 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

How can you think creatively about things you don't know (facts)?

28.11.2025 08:29 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Let me tell you a story (before the ship explodes):

24.10.2025 10:39 πŸ‘ 2008 πŸ” 640 πŸ’¬ 75 πŸ“Œ 37
Image of the progress pride flag flying at our ESAC site in Spain.

Image of the progress pride flag flying at our ESAC site in Spain.

Image of the progress pride flag flying at our ESRIN site in Frascati, Italy.

Image of the progress pride flag flying at our ESRIN site in Frascati, Italy.

Image of the progress pride flag flying at our ESEC site in Belgium.

Image of the progress pride flag flying at our ESEC site in Belgium.

Image of the progress pride flag flying at our ESOC site in Darmstadt, Germany.

Image of the progress pride flag flying at our ESOC site in Darmstadt, Germany.

Today is #LGBTQinSTEMDay 🌈

ESA proudly joins the STEM community in celebrating the unique contributions of LGBTQ+ individuals.

The Pride Flag will fly across ESA sites as a reminder of how far we’ve come, and how much more there is to do.

#SpaceForAll

18.11.2025 12:45 πŸ‘ 895 πŸ” 194 πŸ’¬ 9 πŸ“Œ 23

Ah Dan Hodges, never knowingly correct about anything, indeed impervious to any desire for the truth.

18.11.2025 13:46 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Screenshot of downdetector.com being down

Screenshot of downdetector.com being down

Downdetector is down because it’s on Cloudflare

18.11.2025 13:03 πŸ‘ 63 πŸ” 16 πŸ’¬ 4 πŸ“Œ 1
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Want students to take great notes?

Use the Cornell Note-Taking Method ⬇️
https://www.innerdrive.co.uk/blog/effectively-use-the-cornell-note-taking-method/

18.11.2025 13:18 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Can't read that, cloudflare is down!

18.11.2025 13:22 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The irony of a DDoS protection service going down is off the scale.

18.11.2025 13:21 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It's all fun and games until the Serious Crime squad comes knocking because your shed has become a ransomware botnet.

18.11.2025 09:55 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

"I could definitely answer that but you're out of tokens for this month. I think Brian the wine cellar might have a milk alternative you'll find refreshing, until your fridge account is back in credit"

17.11.2025 04:27 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

You should definitely get them on a Conference call.

17.11.2025 04:23 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Wow this has taken off. The screenshot was sent to me by a friend, not sure how to credit the original author. I don't have a soundcloud 😁, so instead please thank me by checking in on someone vulnerable today, because the billionaires won't. Thank you.

16.11.2025 22:15 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I like ordering groceries. And booking a holiday. And sketching and writing songs and walking the dog and

16.11.2025 20:43 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Thanks Siobhan for contributing so much to the session, and your kind words here. Good luck in putting all the ideas into practice!

13.11.2025 15:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0