A triangle whose interior angles sum to zero
https://www.johndcook.com/blog/2025/11/28/tricusp-triangle/
#HackerNews #triangle #angles #zero #geometry #math #blog #post
On May 1st 1890 in Paris, left-wing activists wore a red triangle:
🔻
One for 8 hours work,
one for 8 hours leisure,
one for 8 hours rest.
"Red triangle: the working-class origins of an anti-fascist symbol" (fr) https://www.solidaire.org/articles/triangle-rouge-les-origines-ouvrieres-d-un-symbole-antifasciste
#antiFascism #struggles #labour #labor #workHours #redTriangle #invertedTriangle #triangle #Mai1st #unionism #tradeUnions #Paris #LabourDay #LaborDay #OTD
Dear Lovely Peeps,
This is GORGEOUS. Make sure sound is UP. Trance-inducing even to watch, but the rhythm sound is at least as much part of the performance. 😊
I have never seen a juggler build his entire work around an external prop, but Michael Moschen does it so well. 🤩