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Paul Wennberg

@paulowennberg.bsky.social

Atmospheric Scientist at Caltech. Troll to my children. Views my own. wennberg@caltech.edu

1,286 Followers  |  489 Following  |  687 Posts  |  Joined: 30.06.2023  |  1.7096

Latest posts by paulowennberg.bsky.social on Bluesky

A yearโ€™s worth of precipitation in less than a day.

28.10.2025 16:41 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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PhD Position in Atmospheric Chemistry

We have a new PhD project to study ozone formation from fires. If interested in atmospheric chemistry, fires, living in Zurich, and studying at ETH, consider applying here: jobs.ethz.ch/job/view/JOP...

30.09.2025 08:08 โ€” ๐Ÿ‘ 28    ๐Ÿ” 28    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Air traffic control The LAX-pressway must be stopped

LA is building a new $1.5 billion freeway into LAX.

The very same airport where we just spent $2 billion on the people mover โ€” actually, more like $3 billion, plus another $900 million if you count Metro's investment in the LAX station; so let's just say $4 billion โ€” to make cars go away

23.10.2025 21:42 โ€” ๐Ÿ‘ 252    ๐Ÿ” 61    ๐Ÿ’ฌ 26    ๐Ÿ“Œ 73
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Mind the gaps: The fraught road to quantum advantage Quantum computing is advancing rapidly, yet substantial gaps separate today's noisy intermediate-scale quantum (NISQ) devices from tomorrow's fault-tolerant application-scale (FASQ) machines. We ident...

When and how will quantum computing broadly benefit humanity? Despite exhilarating recent progress, we still donโ€™t know. Here my friend Jens Eisert and I assess the current status and the challenges ahead.
arxiv.org/abs/2510.19928

24.10.2025 04:40 โ€” ๐Ÿ‘ 75    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 5
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Monty Python understood p-hacking

23.10.2025 08:43 โ€” ๐Ÿ‘ 497    ๐Ÿ” 142    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 10

Written by a Vermonter too. Amazing play.

22.10.2025 04:33 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Congratulations!

21.10.2025 14:57 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

OMG

21.10.2025 05:17 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

100%

20.10.2025 20:15 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

5. Solar modules now cost 8.9 US cents per Watt (higher in US, India due to trade barriers). Solar panels are cheaper than ordinary fencing materials. For rooftop installs, non-module cost is still $0.50-3.00 per Watt, so further module price declines make little difference.

20.10.2025 07:46 โ€” ๐Ÿ‘ 150    ๐Ÿ” 22    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 5

Was wondering where the first game of the world series will be so I asked google whether BJs or Dodgers have a better regular season record which is determinative:

AI Overview
The Dodgers have a better regular season record than the Blue Jays with a record of 93-69 compared to the Blue Jays' 94-68.

20.10.2025 01:28 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Y2K seems like a joke now, but in 1999 people were really freaking out People feared the computer glitch would mean "the end of the world as we know it." Thankfully, Y2K didn't live up to the hype after years and billions of dollars were spent on painstaking preparation.

Probably ok. www.npr.org/2024/12/28/n...

17.10.2025 13:53 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Stem Cell Technique Could Preserve Endangered Bird Species A new technique enables stem cells from bird species to be frozen and revived

Caltech researchers have now developed technology to freeze and preserve stem cells from birds that can then be reconstituted to help propagate populations.

www.caltech.edu/about/news/s...

15.10.2025 18:02 โ€” ๐Ÿ‘ 8    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Payton's citation

Payton's citation

Payton

Payton

And the Friedlander award winner this year was Dr. Payton Becker, currently at PNNL, for her very impressive PhD thesis work. #AAAR2025

14.10.2025 13:30 โ€” ๐Ÿ‘ 10    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
UN Careers United Nations

@unep.org is seeking a Chief Scientist and Director of the Office of Science. This is a senior position based in Nairobi. Please share with your network! careers.un.org/jobSearchDes...

14.10.2025 14:22 โ€” ๐Ÿ‘ 1    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Assistant Professor in Environmental Studies

The Department of Environmental Studies at CU-Boulder is searching for a new Assistant Professor in the area of energy and environmental policy, with an emphasis on sustainability and decarbonization. #EnergySky

jobs.colorado.edu/jobs/JobDeta...

14.10.2025 01:37 โ€” ๐Ÿ‘ 21    ๐Ÿ” 18    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Why Are So Many Pedestrians Killed by Cars in the US? Itโ€™s unfortunately not uncommon for pedestrians to be killed by cars in the US.

Deep dive into the surge in US pedestrian deaths:

"Itโ€™s not that more pedestrians are getting hit by vehicles; itโ€™s that the ones that are getting hit are more likely to die."

"[That] seems like fairly strong evidence for the theory that the rise in large SUVs is behind the uptick in ped deaths."

11.10.2025 13:52 โ€” ๐Ÿ‘ 1061    ๐Ÿ” 390    ๐Ÿ’ฌ 41    ๐Ÿ“Œ 56
PTR-MS Technology used in Research Campaign | IONICON

Sometimes science is field work, sometimes it is lab work, computer work, discussions, presentations... and sometimes it is executing plan B and driving a highly sensitive and sophisticated scientific instrument across four countries and over 1500 kilometers!
www.ionicon.com/blog/2025/a-...

10.09.2025 15:31 โ€” ๐Ÿ‘ 7    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

22 yrs is full cycle but solar max occurs at 1/2 periodicity. Only got to wait 11.

11.10.2025 03:26 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Amazing

06.10.2025 15:17 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Wow

06.10.2025 15:17 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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A 2024 study found that ants best humans at tests of collective intelligence.

Learn more on #WorldAnimalDay: https://scim.ag/42nMvQJ

04.10.2025 18:19 โ€” ๐Ÿ‘ 207    ๐Ÿ” 58    ๐Ÿ’ฌ 11    ๐Ÿ“Œ 12

Donโ€™t gnocchit until youโ€™ve tried it.

30.09.2025 04:16 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Actually very good.

30.09.2025 04:11 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Can confirm that this is excellent

30.09.2025 04:08 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Pretty good but โ€ฆ. Why with approximately the same amount of co2 is Mars so cold? Because Mars has little N2 or O2. Although N2 and O2 only weakly interact with IR radiation, their collisions with H2O, CO2, CH4, and N2O are essential for making these small molecules good greenhouse gases.

28.09.2025 13:57 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Ozone chemistry in western U.S. wildfire plumes While ozone increases rapidly in wildfire plumes, downwind its production rate slows dramatically as nitrogen oxide levels decline.

So in fresh smoke the ozone gets titrated out by all the VOCs but its more complicated as the smoke moves and ages- this paper is a great look into the chemistry! www.science.org/doi/full/10....

24.09.2025 10:40 โ€” ๐Ÿ‘ 5    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

How much does the DC power influence the battery design (not including wires and inverters)? Eg, whatโ€™s the difference between a 100MW / 2 hour BESS and a 25MW / 8 hour battery?

26.09.2025 16:44 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
AGU - American Geophysical Union

Congratulations to @NASAโ€™s Jim Crawford for the @AGU Yoram J. Kaufman Outstanding And Unselfish Cooperation In Research Award. So well deserved!

www.agu.org/user-profile...

26.09.2025 00:10 โ€” ๐Ÿ‘ 10    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Congratulations @chriskenseth.bsky.social !

25.09.2025 23:52 โ€” ๐Ÿ‘ 8    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@paulowennberg is following 20 prominent accounts