What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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Here's some interesting maths homework that my son got.

Using only four 4s and whichever operators you choose, come up with sums that equal every number from 1 to 20.

For example, 16 is 4 + 4 + 4 + 4. And 2 is (4/4) + (4/4).

5 is (√4 x √4) + 1. And 8 is 4 + 4 + 4 - 4.

We've got answers for most of them, but are struggling with a few. Haven't got his book in front of me now, but I think we don't have an answer for 10, for example.

PS: You must use all 4 fours.

EDIT: 5 is (√4 x √4) + (4/4)

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See edit below:

Does anyone have that infographic that explains all the gender variations/expressions? It was in landscape aspect ratio and I think it was blue with lots of boxes. Cannot get the right words to search for it. Thanks in advance!

Edit: it’s this one! scientificamerican.com/article

Thanks for all your boosts!

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I think everyone needs a reminder that fascists don't need "an excuse" to do fascist violence. Fascists do fascist violence when given opportunity, not when given pretext.

This is not some "start" to political violence. The fascists are already doing fascist violence, and have been for quite some time.

They will likely claim it as their reason for new violence, yes, but you shouldn't take fascists at their word. That would be a gravely dangerous misunderstanding of fascist behaviour.

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Street Art Utopia shared the below article:

This Will Make You Smile (9 Photos)

STREET ART UTOPIA @streetartutopia@streetartutopia.com

From playful chalk creatures peeking out of cracks to giant murals filled with warmth and humor, these 9 artworks bring a smile in unexpected places. You’ll find works from city walls in Spain and France, rural landscapes in Australia, and delicate creations made from natural materials. Together, they show how public art and creativity can brighten any corner of the world. More: Funny Signs! (19 Photos) 1. Where Big Breakthroughs Are Required — By David Zinn in Ann Arbor, USA A […]

Read more →
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