Gotta love how in an era where gas prices are spiking and we might, just might, get more people interested in biking, especially with the advent of e-bikes, the CA Legislature is doing its damnedest to kill e-bikes because of weird moral panics www.sfchronicle.com/opinion/open...

You wanna know something really wild? E-bikes are already displacing more emissions from autos than electric cars. Wild! Break free from the uncertainty and cost of gas prices - buy an e-bike! www.cbc.ca/news/climate...

it you watch the video, it's pretty insane that the truck just flat out does not see the car, yet drives fast enough in a parking lot to roll up the hood. cool that this is legal, but e-bikes are getting banned.

California folks: The state is considering some really poorly written e-bike regulations and now is the time to let your representatives know that we want workable regulations that support legal e-bikes. @calbike.bsky.social has a summary and contact form at www.calbike.org/ab1557ab1942

People compare e-bikes to cars, because e-bikes are increasingly being used to replace car trips. There may be more e-bike/pedestrian conflicts due to insufficient infrastructure, but e-bikes are still *much* safer than cars. If we want to talk about e-bike safety, this context is important.

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)

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-...

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.

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.

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...

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

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*? 🧵

Something I often talk about is the need for media outlets to put conversations about e-bike safety and regulations in the context of the larger danger on our streets: cars. The Boston Globe published two letters to the editors that do this well. I'll thread them below.

New on the blog! Kristin Briney talks to us about The Data Management Workbook 📖 Read the full interview ➡️ https://tinyurl.com/3p6mk445 #datamanagement #dataanalysis #statistics #researchdata

Looking for a science-based holiday gift for kids? Check out "X-ray Crystallography Adventures! Cat & Elephant's Sugar Crystal Mystery" Filled with 21 pages of colorful hand-drawn illustrations, this book is perfect for kids 4-12 or anyone who loves crystals. Available at meitneriumpress.com

Say it with me 3 times... E-MOTOS ARE NOT BIKES E-MOTOS ARE NOT BIKES E-MOTOS ARE NOT BIKES velo.outsideonline.com/ebike/ebike-...

A picture is worth a 1000 words. The birth dose of hepatitis B vaccines in the USA eliminated perinatally acquired hepatitis B infection from over 20,000 cases a year before the vaccine was introduced to <20 cases a year. The gaslighting by the current members ACIP is obscene, unethical and cruel.

Abject failure. wapo.st/49WM4BI

I'm sorry, I just have to pop off again on that NYT e-bike piece. The fatality rate for e-bike injuries is 11%?? You're saying that one out of every 9 times someone hurts themselves on an e-bike, they die? That is just so mind-blowingly incorrect, I don't know where to start.

This is actually quite brilliant, up to and including the final sentence 🔥

🔔 Reminder: Covid-19 was a leading case of death among US children and young people during the pandemic with 821 deaths in the year from August 1, 2021, to July 31, 2022 @jamanetworkopen.com jamanetwork.com/journals/jam...

Rad Power Bikes in trouble. Stock up on those bespoke 22” tires asap electrek.co/2025/11/10/r...

Wow this is bad.

🚨🔥🔋🚲👇⚠️ RadWagon 4, RadCity HS 4, RadRover High Step 5, RadCity Step Thru 3, RadRover Step Thru 1, RadRunner 2, RadRunner 1, RadRunner Plus, and RadExpand 5. The battery model number (HL-RP-S1304 or RP-1304) is printed on a label on the back or rear of the battery.

Thrilled to announce publication of the crystallography children’s book illustrated by undergraduate Justine Wong! You can buy it here for $15: meitneriumpress.com 50% of profits will support undergrad education at the Cal Poly Pomona Crystallography Co-op. #chemsky #chemchat

The state's response to wildly popular e-bikes? Cancel the program and fund more cars. 🤦‍♀️ CARB is ending the EBIP, mistaking "cleaner cars" for real climate progress. We demand mobility, not just motors. Demand a Better Path: https://go.calbike.org/a/better-path-permanent-funding-e-bikes

Sometimes when I'm critical of what I put under the rubric of "Dem leadership" which includes but isn't limited to elected leadership, party officials, and big Dem organizations and donors, I get nitpicky nonsense of about whether specific constituencies are exempt.

This is one of the coolest visualizations I've seen of waves moving throughout the country over 2 years. Note the seasonal patterns in various states. From Yale school of public health