From descriptive to quantitative biocatalysis “The 1913 study ‘Die Kinetik der Invertinwirkung’, by Michaelis and Menten, marked a pivotal advancement in enzymology by illustrating the application of mechanistic models and quantitative kinetics to biocatalysis.” doi.org/10.1038/s419...

Longer moms wear a short skirt and loooong jacket. May or may not be touring the facility and eating up plankton

Ponderosa pine smells like butterscotch. Go ahead, sniff one the next time you're in the western US. Some say "vanilla", some say "oh no, my nose is covered in sap." Let's talk about birds, butterscotch, forest fires, blue wood, & boring beetles. But mostly this thread is about terpenes.

We all know why that second sign is there 😂

Contact (1997) 🎥

Training telephone

A brief trip finds me on the north shore of Lake Erie. I met a local fisherman! #birds 🪶

McGill University: Materials Chemistry https://chempostingscanada.blogspot.com/2025/09/mcgill-university-materials-chemistry.html

I’m also trying to do some IG-style videos for the Nobel prize coloring book. Worth it? #chemsky

I’m here to kick ass and eat voles, and I’m all out of voles

Alien: Earth

I feel like this savannah sparrow should be smoking a cigarette or something, he's so metal. 🪶

Alien: Earth

Got a great idea to help #birds in your community and need some funding to get started? Check out the Birds Canada Community Grant. There’s still time to apply this year

Out for a walk on a cloudy day when we were surprised by this hawk flying by with a snack in its talons. The rodent was disemboweled and devoured before our hunter sat and posed. Much better images will appear via @saskajanet.bsky.social. We think it is a juvenile Broad-winged Hawk. #birds 🪶

this cat looks like one of the Old Master painters who's just slept with three servants, argued viciously with his annoying patron about the inferior ham he receives, and then painted his masterpiece out of spite

For 9/11 this week read this nice account of what the folks in Gander did in order to accommodate 35+ international airliners that needed to land. Very good. Highly recommend!

Unexpected and unusual (for me) wildlife encounter from my weekend field trip - Western Painted Turtles! #herps 🌿

This article has some interesting chemistry to talk about with students, but I flinched at the phrase “eyelash glue”, which sounds like something from a Saw movie to me 😵

Happy 32nd to these two hotties. THE X-FILES premiered #OTD in 1993. #GillianAnderson #DavidDuchovny #TheXFiles

As I understand it, even if you do find a really distinct signature, you can just get a bunch of jerks to say that its not really a signature and you would never even send a birthday card.

TIL that western Turkey Vultures migrate further than their eastern cousins (some in the SE USA who don’t migrate at all). These vulture friends will go all the way to South America. Cool map from Hawk Mountain www.hawkmountain.org/birdtracker/... #birds

Mitosis is beautiful big and small artologica.etsy.com

Just the stupidest shit imaginable.

WHO WASHES THE WASHMEN!?

Slightly diminish a book Advanced Inorganic Chemistry by Carey and Sundberg 👀 #ChemSky

Slightly diminish a book Sensibility

In the latest edition of #PeriodicGraphics by @compoundchem.com, we take a look at different classes of drugs that can help people sleep, including antihistamines, benzodiazepines, melatonin analogs, and Z-drugs. cen.acs.org/biological-c... #chemsky 🧪

Precious, based on the novel Push by Gary

hello my baby hello my honey

lol i hadn't even thought about this. Sauron declaring war on Gondor using AI art of how badass he looked just before Isildur chopped his finger off

#Caturday is for investigating mysteries!

Akira Kurosawa directs a police procedural, Toshiro Mifune does a movie in a cardigan, and glowing sunglasses guy is the villain of dozens of movies hereafter. Great fun streaming on the Criterion Channel.

The buzz from the Venice Film Festival has been rapturous.

A little family scene on my walk home! Cedar waxwing parent feeding its babies, producing berries from its throat like a magician making ping pong balls appear. #birds 🪶

When people say "We used to drink raw milk from our own cow and it was fine," That's... usually not the case! In families w their own cow, the mom usually boiled it before using. We just forgot bc that's a boring chore that mom did. And who pays attention to that? youtu.be/vKDPast9WFk

Happy Labor Day! Today we're bringing you The First Union, as told by HBomberguy (@hbomberguy.bsky.social) and illustrated by Skutch (@skutchdraws.bsky.social) It's the dawn of the industrial revolution, and of the way many of us work... Have you ever heard of the term "Luddite" from an elder?

It's the third of September. Happy "Papa Was a Rolling Stone" day to all who celebrate!

The Trainees page at the Enzyme Mechanisms Conference website is updated. Students and Postdocs can submit a 3 minute flash talk "audition" for one of 10 slots to be presented before the poster sessions. www.enzymemechanismsconference.org/junior-inves... (1/2)

It finally happened. I saw a parent showing her daughter, an incoming student, where the classrooms are in the building. (Classes start tomorrow.) I recognized the mother as a former student of mine.

Welcome back, everybody!

Well just look who decided to cut me some slack #birds

Happy Labour Day to all who get one and all who should. Mine is off to an appropriate start! 😽 💤

This movie is hilarious. You don’t have to be a birder to love it (but it helps)!

Margaret Atwood claps back to having The Handmaid’s Tale banned from Alberta schools by the UCP. It’s so good. #ableg #abpoli #abed

Definite vampire vibe here! “Here are the musicians I hired.” 🧛 🧛‍♀️ 🧛‍♂️

I love seeing those big orange pelican feet! South Saskatchewan River’s most famous inhabitants never disappoint 🪶😊

Hey Firefox users.