Reposted by Laurent LessardButtons (Ashley) 🏴☠️#OFMDForLife🏴☠️ 🏳️🌈🤡 @sevensugars.bsky.social · 17/06/2026Since I did do my PhD in cyanobacteria growth and treatment optimization modeling AND work in the water treatment industry, I’m gonna share my theory as to what’s happening here and how to fix it. People are focusing on the painted bottom of the pool increasing residual heat, and while that 1/19 21093633493
Reposted by Laurent LessardMaxim Raginsky @mraginsky.bsky.social · 19/04/2026archive.ph/2026.04.13-1... 0112
Reposted by Laurent LessardMrLevMaths @mrlevmaths.bsky.social · 11/06/2025Using* the most cursed #ALevelMaths Formula in #MathsToday *absolutely not using but fun as a hook for Radians Sector lesson with Y12 4217
Reposted by Laurent LessardBobby Silverman @robertsilverman.bsky.social · 29/01/2025Wow. it must feel terrible when someone takes something you made and uses it without permission or payment 180188475038
Laurent Lessard @laurentlessard.bsky.social · 26/01/2025This week's #Fiddler puzzle is a random walk: From (k), you hop to (k-1) with probability 1/k and hop to (k+1) otherwise. If you start at (2), what is the probability you eventually hop to (1)? @xaqwg.bsky.social I wrote a short tutorial here: laurentlessard.com/bookproofs/c...laurentlessard.comCan you hop to the lily pad? - Book ProofsThis week's Fiddler is about hopping back and forth. You are a frog in a pond with an infinite number of lily pads in a line, marked "1," "2," "3," etc. You are currently on pad 2, and your goal is to... 051
Laurent Lessard @laurentlessard.bsky.social · 22/12/2024This week's #Fiddler: Assign distinct prime numbers to the vertices of a dodecahedron so the sum of the vertices of each face sum to 2025. I modeled this as an integer linear program. Here is one possible solution. @xaqwg.bsky.social My write-up: laurentlessard.com/bookproofs/2... 082
Laurent Lessard @laurentlessard.bsky.social · 09/12/2024This week's #Fiddler: what is the minimum-energy way to pack 9 particles in a unit square, where energy is measured as the sum of 1/dist over all pairs of particles? Turns out it's NOT a regular 3x3 lattice! @xaqwg.bsky.social write-up: laurentlessard.com/bookproofs/p... 271