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Modern Physics is an origin story of extremes. Extreme speed. Extreme smallness. It was in these corners of reality that old notions found their limits and new ideas could rise to solve mysteries. A hot cup of coffee and a cold cup of ice water, observed over hours, teach us […]

The Big and the Small

It never fails. An optical recording disc, with its numerous small grooves, causes light from a hydrogen discharge tube to spread out in a rainbow. Except this rainbow is incomplete, with only a red, a cyan, a blue, and a violet line. Where are all the other colors? Hydrogen cannot […]

Seeing the Quantum Universe

Scenes from Wisconsin in August 2019

Scenes from Wisconsin in August 2019

Four of us stood in the lobby of the La Fonda Hotel. The beautiful space sits just off the main square in Santa Fe. You could almost feel the ghosts of the Manhattan Project walk past as people now sat, perhaps unaware, reading papers, waiting for friends, eating in the […]

A Peek into the Secret City

A clothes dryer heating element, 10 years old and broken

Before I wanted to be a physicist – I mean, really wanted to become a physicist – I learned the joy of tinkering. I am sure it started earlier than when I remember it actually happening (memory is funny that way), the first first recollection I have of fully losing […]

The Joy of Pulling things Apart

The conference, Rencontres de Blois, takes place annually in the Chateau de Blois. This year was the 30th anniversary of the conference and the 31st such edition of the conference. The conference is a synthesis of particle physics, astrophysics, and cosmology – a perfect match to the strengths of our […]

Messages from Blois (2019)

Signs of Summer 2019

Signs of Summer 2019

Any person with a minimum sufficient experience in life has been rewarded with failure. A subset of those people, with sufficient practice, will come to recognize failure, not as a friend, but as a teacher. A recent useful (and ultimately harmless) failure in my class became a key teaching moment, […]

Failure as a Teacher’s Aid

Tomorrow, my spring teaching begins. Again, I am teaching “Introductory Mechanics” (PHYS 1303), our 1st-semester introductory physics course. Inspired by the Marvel Studios movies, the theme this semester is “ASSEMBLE!” Enjoy my little fan art below. Many thanks to my undergraduate teaching assistants, and course veterans: Chase, Lauren, and Andrew!

Spring 2019 Introductory Mechanics (PHYS 1303)

Critical Thinking Guide: President Trump’s First National Address

Tonight, President Trump will address the nation during prime time (9pm EST). Major networks will carry the speech. The Democratic leadership will rebut the speech afterward. The speech is expected to focus on the following claims from the President: There is a national security crisis at the southern U.S. border. […]

Critical Thinking Guide: President Trump’s First National Address

I love podcasts. I don’t get to listen to all the ones I like all of the time, but I love knowing that interesting content – from polished news programs to amateur computing tips – are there at my command when I do have time. However, a trend has grown […]

Don’t Let Podcasts Die in Darkness

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Phase one of the home server upgrade, taking its operating system from Ubuntu 14.04 -> 16.04, was a fairly long process. In the wake of that upgrade I was left with a non-working MediaGoblin instance. Today, I took the next step: 16.04 -> 18.04. This went substantially better.

Home Server Upgrade – Phase Two

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Follow this blog on Mastodon or any other ActivityPub-enabled social media system. This blog’s identity (webfinger) is @steve@steve.cooleysekula.net.

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  • (no title)
    October 28, 2025
    So pleased with the conversation between @snolabscience.bsky.social Research Scientist Dr. Erica Caden and the excellent “Up North” host, Jonathan Pinto, about the meaning of […]
  • (no title)
    October 26, 2025
    Hoping for ... and looking forward to ... a quiet day. It's delightfully below freezing here in #Sudbury and we had a lovely sheen […]

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