Political consultant Bradley Tusk has spent a fortune on mobile voting efforts. Now, he’s launching a protocol to try to mainstream the technology. www.wired.com/story/bradle...

This! Here's a slide pulled from my class lecture notes this semester. Comets have two clear tails - one from dust and one from ions. They point in different directions because one feels the solar wind while the other feels radiation pressure.

New paper! This is a review article prepared for the upcoming Encyclopedia of Particle Physics. 🧪

inspirehep.net/literature/3...

First day of classes at @jhuartssciences.bsky.social. A glorious day to learn #QuantumMechanics!

I'm teaching two courses - QM for physics majors, and Philosophy of Cosmology for a general audience. I'm going to try to maintain a thread saying what happens in each class, let's see how I do.

X is full of tech posts.

Bluesky is full of US politics.

What's left for physics people?

my bluesky feed is full of Epstein posts. i want to read physics posts. 🥺

A little less than a year ago, a large team of cosmologists reported evidence that dark energy (which drives the acceleration of the expansion of the Universe) evolves over time. This made a huge splash but has also been viewed with healthy skepticism. Today they report that evidence has weakened. 🧪

They did not in fact understand the assignment

A promise is not a deal.

Especially when that “promise” is coming from people with an extensive track record of lying and cheating.

Asthma diagnoses do not change following legalization of recreational cannabis, while asthma-related dispensed prescription medications decline, and asthma-related outpatient visits and inpatient hospitalizations are stable, from Jayawardhana, Hou and Maclean www.nber.org/papers/w34435

@dangaristo.bsky.social, "In 1960 the Swiss physicist Ernst Stueckelberg developed a real-valued quantum mechanics that mapped the wave function from a complex-valued space to a real one, using a few tricks to get real numbers to mimic the rotations around an imaginary axis."

In 1676 Ole Rømer saw eclipses of Jupiter’s moon Io run late when Earth moved away from Jupiter and early when approaching. Earth’s orbital diameter was known from Kepler’s laws; from this he was the first to estimate the speed of light (at 220,000 km/s) and was accurate to 75% #AstroHistory

On this day 50 years ago, John Ellis, Mary K. Gaillard and Dimitri Nanopoulos submitted the paper "A Phenomenological Profile of the Higgs Boson" which was first to tell experimentalists how to find the Higgs boson.

#OTD #historyofphysics #physics ⚛️🧪

Happy April Fools Day!

arxiv.org/abs/2503.22790