Patrick Devaney
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patrickdevaney.bsky.social
Patrick Devaney
@patrickdevaney.bsky.social
170 followers 160 following 870 posts
UBC CS PhD student - formal verification of hardware and software (also occasionally theory of computation) - hobbyist nature photographer - #CovidIsAirborne
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patrickdevaney.bsky.social
“Graph Theory, Second Edition” by Douglas B. West “Contemporary Abstract Algebra, Ninth Edition” by Joseph Gallian
November 23, 2025 at 2:26 AM
patrickdevaney.bsky.social
xkcd.com/605/
XKCD comic #607
October 26, 2025 at 10:39 PM
patrickdevaney.bsky.social
Go Birds 🦅 (and PNW-based STEM PhD nature photographer Patricks 😛)
A bald eagle flying in front of a mountain in Vancouver, BC
October 26, 2025 at 8:28 PM
patrickdevaney.bsky.social
xkcd.com/2048/
XKCD comic #2048
October 25, 2025 at 9:57 PM
patrickdevaney.bsky.social
Tonight's harvest supermoon 🌕 in Vancouver, BC.
@bskyphotos.bsky.social #SuperMoon #HarvestMoon #photography #NaturePhotography #Astrophotography
A telephoto picture of the full moon.
October 7, 2025 at 8:00 AM
patrickdevaney.bsky.social
A barred owl at Jericho Beach yesterday evening.
@bskyphotos.bsky.social‬ #owl #barredowl #bird #birds #photography #NaturePhotography #JerichoBeach
A barred owl sitting on a bare tree branch, with brown and green forest in the background. Light blue "PSD Aug 18/25" watermark in the bottom right corner.
August 19, 2025 at 9:16 PM
patrickdevaney.bsky.social
A businessman in a tattered suit sitting with some children around a campfire, with a post-apocalyptic city in the background, saying "Yes, the planet got destroyed. But for a beautiful moment in time we created a lot of value for shareholders."
August 8, 2025 at 6:08 AM
patrickdevaney.bsky.social
I haven’t seen the one up the coast, but several other rowing locations too (eg there were lots out at Burnaby Lake when I was there birdwatching over the weekend)
A lake covered in lily pads with forest and downtown Burnaby in the background
July 15, 2025 at 2:40 PM
patrickdevaney.bsky.social
If each individual infection has an 80% chance of NOT giving you long COVID, the cumulative odds you won't have it after n infections starts looking concerning rather quickly 😷
Graph of 0.8^n for n = 0 to 20
July 14, 2025 at 7:33 AM
patrickdevaney.bsky.social
Capitalism in a single image.
“Most needed food bank item. Purchase today and donate.” sign above an orange box of rice in the grocery store.
June 27, 2025 at 1:57 AM
patrickdevaney.bsky.social
"Five Stages of White House Employment" cartoon
June 5, 2025 at 8:32 PM
patrickdevaney.bsky.social
I was thinking of this one, but that works too!
Top: tyranny Bottom: checks & balances, separation of powers, electoral college, term limits, tyranny
May 12, 2025 at 4:15 AM
patrickdevaney.bsky.social
Mark Zuckerberg: I THINK OUR COMPANY COULD USE MORE MASCULINE ENERGY. Audience member: BY "MASCULINE ENERGY," DO YOU MEAN A MATURE DEFINITION WHERE MEN IN POWER USE THEIR RELATIVE STRENGTH TO PROTECT AND UPLIFT THOSE LESS PRIVILEGED? Audience member: ...OR A MORE CHILDISH DEFINITION WHERE MEN IN POWER ARE FREE TO BE AGGRESSIVE AND HARM OTHERS WITHOUT BEING HELD ACCOUNTABLE? Mark Zuckerberg: YOU'RE ALL FIRED.
February 28, 2025 at 6:07 PM
patrickdevaney.bsky.social
xkcd.com/1838/
XKCD 1838
February 23, 2025 at 3:27 AM
patrickdevaney.bsky.social
"Pale Blue Dot" photo with an arrow pointing to the planet Earth labelled "Gulf of Mexico"
February 13, 2025 at 7:58 PM
patrickdevaney.bsky.social
xkcd.com/2418/
XKCD 2148
December 28, 2024 at 8:16 PM
patrickdevaney.bsky.social
For today’s #WoodpeckerWednesday: a male red-headed woodpecker in Ontario, Canada. @bskyphotos.bsky.social #birds #photography #NaturePhotography
A male red-headed woodpecker (with a red head and white body) sitting in a tree with green leaves, facing to the left.
November 27, 2024 at 8:34 PM
patrickdevaney.bsky.social
“You have died of dysentery” message from the video game Oregon Trail.
November 24, 2024 at 6:45 PM
patrickdevaney.bsky.social
For today’s #WoodpeckerWednesday, a male Downy woodpecker in Ontario, Canada
#NaturePhotography #birds #nature @bskyphotos.bsky.social
A male Downy woodpecker with a white belly, black-and-white body, and small red patch on its head, sitting on a large tree branch with no leaves and facing to the right.
November 20, 2024 at 4:19 PM
patrickdevaney.bsky.social
Just discovered the #WoodpeckerWednesday tag! Here’s my contribution: a photo I took of a male red-bellied woodpecker in Ontario, Canada!
A male red-bellied woodpecker with a red head, white front, and black-and-white back sitting on a tree with green leaves in the background
November 13, 2024 at 3:15 PM
patrickdevaney.bsky.social
The northern lights over Kitsilano Beach in Vancouver
Kitsilano beach with the mountains visible in the background and green (with hints of red) northern lights in the sky
October 11, 2024 at 5:46 AM
patrickdevaney.bsky.social
Sunset at the UBC Rose Garden
September 24, 2024 at 2:09 AM
patrickdevaney.bsky.social
Don’t forget the importance of having wealthy parents.
September 21, 2024 at 8:45 PM
patrickdevaney.bsky.social
What I look like scrolling social media
Jonathan Swan looking at a paper, confused
May 3, 2024 at 1:53 AM