jo melville
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jmelville.science
jo melville
@jmelville.science
climate tech (electrochemistry, industrial decarb, synthetic fuels, carbon removal, deep biogeochemistry, solar radiation management)
formerly: ARPA-E, Georgetown, MIT (PhD), UC Berkeley (BSc)
ask me anything: https://jmelville.science/ask/
🇺🇸→🇸🇬
ski pass prices are extortionate but have discounts for students, children, and military members. some discounts stack, so you can get a "teen military" or a "child military" pass. I assume this is for servicemembers with kids but it makes it sound like there is a special discount for child soldiers
November 23, 2025 at 8:53 AM
I go back and forth on the "hope for climate" question.

On one hand, I think of this hapless interview with Andreas Malm where the journalist begs him to give them a reason to live. (yes, really)

www.nytimes.com/interactive/...
November 20, 2025 at 11:47 AM
oh my god they got Jonkers
November 19, 2025 at 7:59 AM
here is an alternate version of this meme that gives Eu the special attention it deserves
November 8, 2025 at 2:37 PM
please don't @ me like "actually cerium is unique among the lanthanides for its +4 oxidation state"

⚗️🧪 #chemsky
November 8, 2025 at 10:23 AM
SAVOIR FAIRE [Challenging: Failure]
November 8, 2025 at 7:34 AM
You (yes, you) are sleeping on variable-weight fonts with your Microsoft Word 2003 "normal" vs "bold" binary. I'm out here tastefully modulating to lights & semibolds within a consistent aesthetic frame while you mash four incompatible typefaces onto a single page. Get on my level.
November 7, 2025 at 6:44 AM
it's giving
November 7, 2025 at 6:25 AM
182/ 😴💤
November 6, 2025 at 1:03 AM
If the best defense you can muster for the economics of your technology is "it works if electricity is free", it might be an unprofitable technology. 🧵

🔌💡
October 31, 2025 at 3:41 AM
born too late for an all-expenses industrial tour of Soviet factories 😔
October 29, 2025 at 5:14 AM
sometimes i give guest lectures and i never know what to write for my speaker intro
October 28, 2025 at 9:45 AM
a while ago I added a scoring & leaderboard system to Griddle, a game where you try to guess countries based on their electricity generation grid mix.

exciting to see there are folks out there giving me a run for my money! (s/o to NOX, YKH, and AXT)

Can you do better? jmelville.science/griddle/
October 22, 2025 at 9:03 AM
ai alignment effective altruists in denial
October 20, 2025 at 6:38 AM
update: i gatecrashed @kartikchandra.bsky.social's talk at ICFP/SPLASH, coincidentally in Singapore this year 🇸🇬
October 19, 2025 at 12:45 PM
if you aren't sold by the abstract then keep reading, it gets even funnier:
October 15, 2025 at 1:24 AM
charlie brown kinda had the most hoes out of anyone in the sunday paper.
October 14, 2025 at 1:37 AM
in naval architecture, a "Panamax" cargo ship is one that is designed to the maximum dimensions to traverse the Panama Canal. similar designations exist for the Baltic Øresund ("Baltimax"), Straits of Malacca ("Malaccamax"), etc.

Gen Z maritime engineers may refer to this as e.g. "Suezmaxxing"
October 7, 2025 at 4:30 AM
181/ last recorded good use of AI
October 5, 2025 at 5:00 AM
180/ mpreg? in my football league? it's more likely than you think
October 3, 2025 at 3:34 AM
179/ commuting
October 3, 2025 at 3:31 AM
178/ 13 latvias
October 3, 2025 at 3:31 AM
177/ poetry
October 3, 2025 at 3:30 AM
176/ it's spooky time
October 1, 2025 at 10:42 AM
175/ Hypocrite that you are, for you trust the chemicals in your brain to tell you they are chemicals. All knowledge is ultimately based on that which we cannot prove. Will you fight? Or will you perish like a dog?
October 1, 2025 at 3:46 AM