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'Wool waulking is a traditional Scottish process of finishing and strengthening newly woven woolen fabrics. It is a significant social and cultural activity, often carried out by women in the Highlands of Scotland. The Gaelic songs that are sung during waulking have a distinctive rhythmic pattern that aids in synchronising the work.'

(Video and text via Inverness Outlanders)

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the women in my bluetooth headphones sounds mad at me :(

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All Quiet On The Frontal Lobe

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girls literally looooove data they love information

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You might think that I'm joking when I say that we need cyborg rights to be codified into law, but I honestly think that, given the pace of development of medical implants and the rights issues raised by having proprietary technologies becoming part of a human body, I think that this is absolutely essential for bodily autonomy, disability rights, and human rights more generally. This has already become an issue, and it will only become a larger issue moving forwards.

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Hey so you remember this thing that everyone on mathblr got excited about recently?

This is the hat, and it's what's called an "aperiodic monotile". This means that no matter how you arrange copies of this tile, you can never get an arrangement that will repeat infinitely (think of it like the irrational numbers of tilings). This was big news in mathematics as while sets of more than one tiles have been found that are aperiodic (e.g: The Penrose Tiles), this was the first tile that's aperiodic by itself, hence "monotile". (There are some caveats to this but that's not important for understanding this post)

However.

If you look at images of the hat tiling, you may notice something.

If you look at the tiles labled 1 and 2, you'll see that one's a reflected copy of the other. In fact, any infinite arrangement with hats requires you to you mix unreflected and reflected tiles. Which raises the question: is it possible to have an aperiodic monotile that doesn't need reflections?

Presenting the Spectre, A chiral aperiodic monotile.

Using only translation and rotation, any arrangement of copies of this tile will never repeat.

Mathematically speaking, this is really fucking cool.

The paper on it is still in preprint, but hopefully I won't need to retract this post. A copy of it can be found here and a post going into some more details of how the shape was discovered is here.

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love 2 learn new things

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Pride & Prejudice (2005) dir. Joe Wright Stardust (2007) dir. Matthew Vaughn

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um. cut him in half

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Just saw a post suggesting babies' behavior in the womb is affected by their astrological star signs, which apparently they are assigned before actually being born. The causality implications of this are nothing short of exhilarating