Pole on sidewalk before an intersection. Green rectangular sign on pole had a circular blue light that goes on when a bicycle rolls up.
It is so thrilling to pull up and watch the bike detected blue light go on.
No pushing a beg button far away on the sidewalk.
No waiting for a car to trigger a green light for me.
Redondo Beach at Artesia and Rindge
I called Assemblymember @asmmiabonta.bsky.social and asked her office to pull co-authorship of AB 1557
I'd rather not have to carry paperwork with me to prove to police officers the exact date on which I bought my Class I e-bike (which will be necessary if amended version of AB 1557 is passed)
Figure 1. Bicycle share of trips in New York City, London, Paris, and Berlin, 1990–2023. Note: the actual years vary slightly by city, as follows: New York: 1990,2000, 2010, 2019, 2022; London: 1993, 2000, 2010, 2019, 2022; Paris: 1990, 2000, 2010, 2017, 2023; Berlin: 1992, 1998, 2010, 2018, 2023. The percentages shown in thegraphic refer to the bicycle share of all trips, all trip purposes, based on travel surveys for each city. Sources: City of Paris, 2000–2023; City of Berlin, 2003–2025;Kalender,2012; NYCDOT, 2018–2023; Pucher, Parkin, et al.,2021; TfL, 2000–2023.
This paper compares trends in cycling levels, cyclist demographics and cycling injury risk in NewYork, London, Paris and Berlin, before and after the COVID pandemic. We explore these trends inthe context of changes to policy and infrastructure before, during, and after COVID. We based ouranalysis on data from published reports, open-data portals, government websites, travel surveys,and information provided by transport planners in each city. Cycling levels in NYC, London, Paris,and Berlin increased over the three decades prior to COVID (1990–2019). As a percentage of dailytrips, bike mode share rose from 0.6% to 2.2% in New York, from 1.2% to 3.7% in London, from0.4% to 5% in Paris, and from 7% to 18% in Berlin. Cycling rates have continued to increase sinceCOVID. By 2023, bike mode shares had risen further to 3% in NYC, 4.5% in London, 11% in Paris,and 19% in Berlin. Cycling became safer in all four cities over the period 2005 to 2023, withdeclining per-trip fatality and injury rates. More and better cycling infrastructure has been acornerstone of pro-cycling efforts, especially cycleways separated from motor vehicle traffic (pro-tected bike lanes). Bike parking and bikesharing systems have expanded and improved. Car restric-tions and traffic calming have complemented pro-bike measures, for example, using infrastructureand enforcement to reduce traffic volumes and speeds in residential neighborhoods. Long-termpolitical support as well as cycling advocacy organizations have been critical to the introductionand continuation of pro-bike policies and the necessary financial investments.
Truly wild research on the change in bike mode share in NYC, London, Paris and Berlin.
Between 2000 and 2023, Paris went from 1 out of every 100 trips being on a bike to *one out of 9!*
Many people, including credible researchers, would have told you that that *could not* happen.
For folks in California, AB 1557 was just amended to make up new definitions for Class 1 and 2 ebikes that would dramatically impact their usability for carrying kids and cargo. @calbike.bsky.social has a good summary; contact your representative now: click.everyaction.com/k/129073693/...
E-biking shouldn't require a driver's license.
"E-bikes don’t pose greater risks than conventional bicycles. On average, e-bike crashes are equally as likely and severe as conventional bike crashes. And research from Denmark even shows e-bike riders are more likely to follow traffic laws."
Morane Gruenpeter is speaking tomorrow at #deRSE2026 about why archiving source code matters as much as the data itself. It’s about keeping science reproducible, not just "open." https://tinyurl.com/5kt7ehvh
Has @avogadro.cc helped your research? Teaching?
As we prepare Avogadro 2.0 for release this spring, I'm hoping to feature some stories (and citations).
#compchem #opensource #openscience ⚗️
Let me know:
discuss.avogadro.cc/t/avogadro-s...
Premium Newsletter: The Hater's Guide To Anthropic, an inefficient, bloated AI ab that loses billions of dollars, deceives developers, burns as much as $8-$13 for every dollar of Claude Code revenue, and needs $283 billion to survive the next 4 years.
www.wheresyoured.at/premium-the-...
A chart showing traffic tickets issued in San Francisco, with a sharp drop that began in 2014, hit bottom in 2022 when just a few tickets were issued, and has now rebounded almost to 2014 levels.
We’re back, baby!
Take a tour of the new cycle parking below Berlin's Potsdamer Platz.
Designed for utility, sport, electric and cargo bikes, it enables a smooth transition to public transport, while taking a disused and uncomfortable private retail corridor and reimagining it as a safe and inviting community space.
"Moderna's CEO announced the company will no longer invest in new Phase 3 vaccine trials for infectious diseases: 'You cannot make a return on investment if you don't have access to the U.S. market. Vaccines for Epstein-Barr virus, herpes, and shingles have been shelved.” 9:12 AM Feb 12, 2026 604.8K Views
In terms of what cures are being lost:
- Epstein-Barr virus is perhaps the major trigger for multiple sclerosis
- herpes simplex virus causes cold sores, genital herpes, infections in babies, deadly meningitis
- shingles virus causes an intensely painful disease
We are being warned in real time about the purpose of these camps even as Trump is expanding them.
bsky.app/profile/davi...
I'm convinced AI is our generation's radium - a discovery with genuinely useful applications in specific, controlled circumstances that we stupidly put in everything from kid's toys to toothpaste until we realised the harm far too late where future generations will ask if we were out of our minds.
Every social theory undergirding Trumpism has been broken on the steel of Minnesotan resolve. The multiracial community in Minneapolis was supposed to shatter. It did not. It held until Bovino was forced out of the Twin Cities with his long coat between his legs. The secret fear of the morally depraved is that virtue is actually common, and that they’re the ones who are alone. In Minnesota, all of the ideological cornerstones of MAGA have been proved false at once. Minnesotans, not the armed thugs of ICE and the Border Patrol, are brave. Minnesotans have shown that their community is socially cohesive—because of its diversity and not in spite of it. Minnesotans have found and loved one another in a world atomized by social media, where empty men have tried to fill their lonely soul with lies about their own inherent superiority. Minnesotans have preserved everything worthwhile about “Western civilization,” while armed brutes try to tear it down by force.
Last week in Minnesota, I watched ordinary people risk their lives to protect their neighbors. In the process, they not only won a significant—though not final—victory against authoritarianism, they proved virtually every MAGA social theory wrong. (gift link) www.theatlantic.com/ideas/2026/0...
A photo of the man murdered by ICE today, just before the shooting. He’s standing and holding a phone in his right hand and holding his empty left hand to the sky and looking behind him at a woman running away while an ICE agent closes in on him from the front. On the ground behind the man is a woman that the victim will soon try to help, leading several ICE agents to attack him and pin him to the ground, before shooting him several times.
We’re supposed to believe this is a domestic terrorist attacking ICE with a gun
That is an ICE agent pepper spraying a restrained victim in the face at close quarters; it's an unquestionable and indefensibly abusive use of excessive force that should (but won't) be criminally prosecuted as assault
take a second to really wrap your head around this.
A few months ago, ICE hired me
I didn't sign and submit any paperwork. I almost certainly failed the drug test. I'm real outspoken about my opposition to the Trump administration, and I am extremely googlable
And yet, there it was, in plain English. "Welcome to ICE!"
My latest for Slate
Its not that the media is not covering what is happening, but it does feel like the military occupation of an American city should be treated as a national crisis.
Characteristically excellent from Robin. Some of these (like 2&5) are things FLOSS/open infra folks have been saying for a while; might be worthwhile considering reasons for slow progress.
Others (esp 4) are new to me & likely more controversial
The fact that nothing is being done about this — and that people keep blithely hanging out on that site as though its owner and a key part of its official architecture aren’t actively enabling disgusting criminal abuse at scale — is making me lose my mind
Zohran just went out and fixed the Williamsburg Bridge bike entrance. Just did it. No faffing, no nonsense. Bam. Fixed.
New from @pamherd.bsky.social & I: Key takeaways from Mamdani's inauguration speech.
"Mamdani will force a conversation among the left about how it should govern." 🧵
donmoynihan.substack.com/p/understand...
This is the most anti-intellectual, anti-science administration the US has ever seen; if it were a novel, it would be satire. Or horror.
Tomorrow, Trump is closing NASA’s largest research library, "a facility that houses tens of thousands of books, documents...
1/2
www.nytimes.com/2025/12/31/c...
4/ We are more sick from EVERYTHING.
These charts are stunning. No freakin' wonder healthcare is strained, workplace and school absences are up, etc.
Holy hell, this is all AIRBORNE. #MaskUp FFS. @doctorsofbc.bsky.social - are you trying to kill us?!
#bcpoli #bced @bcndp.bsky.social
X-ray crystallography adventures children’s book sitting in front of goniometer of X-ray diffractometer
Did you remember to get your X-ray diffractometer a present this year? Don’t worry, we’ve got you covered!
Our‘s loves reading this new book with beautiful illustrations by undergrad Justine Wong.
Only $15 at meitneriumpress.com
#crystallography
We've spent a ton of time talking about teens getting injured on e-bikes (or illegal e-motos).
We've heard that crash rates are skyrocketing. Marin County Dept of Health even set up a dashboard to see how many e-bike/e-moto crashes are happening.
But how many kids are getting hurt *in cars*?
🧵
