Category Archives: Physics

Invisibility demos at UNC Charlotte STEAM Innovation Expo!

This past Sunday, I participated once again in the annual UNC Charlotte STEAM Innovation Expo, in which faculty, staff and partners present science, technology, engineering, arts and mathematics demonstrations and as well as demos highlighting the links between them. Last … Continue reading

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More on Mayer and Tyndall (1862)

I’ve previously written about the amazing story of Julius Robert Mayer, the physician — not physicist — who first conceived of the concept of conservation of energy, and how he was then discredited by the British scientific community in favor … Continue reading

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Talking Invisibility on the Peculiar Book Club!

For those who aren’t yet tired of me talking about the physics of invisibility and my book about it, a couple of days ago I was a guest on the Peculiar Book Club, hosted by Brandy Schillace! It was a … Continue reading

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My tips for scientific conference presentations

This semester, I decided to replace the final exam in one of my upper-level graduate courses with a short 15 minute presentation on a scientific paper related to the course topic. To give the students some guidance, I provided a … Continue reading

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Hanbury Brown and Twiss and their impossible interferometer (1956)

Update: fixed a mistake in my numbers for telescope resolution, which I had worse by a factor of 10. Science is in general intended to be a serious business, but every once in a while one comes across some serious … Continue reading

Posted in History of science, Optics, Physics | 5 Comments

A TikTok video on anholonomy, Foucault’s pendulum, and falling cats!

I’ve been spending more time making videos lately on TikTok, and I saw a video from a young woman inadvertently demonstrating the concept of anholonomy, which is related to everything from Foucault’s pendulum to light polarization to falling cats! I … Continue reading

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Invisibility shortlisted for Phi Beta Kappa Award in Science!

Hi all! I always like to post nice book news here, partly for my own recollection, but I learned today that my book on Invisibility: The History and Science of How Not to be Seen was shortlisted for the 2024 … Continue reading

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Robert Williams Wood and the mystery of anomalous dispersion (1901)

I’ve been hard at work in recent months on a new textbook on electromagnetic waves, and that has led me to dig deep into understanding a number of subjects, and their history, that I have only really casually considered in … Continue reading

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Me, talking falling felines in LiveScience!

Recently, I was interviewed for a LiveScience article about how cats land on their feet, and the article came out today! Here is the link for those who are interested in hearing me talk falling felines, yet again! PS just … Continue reading

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Invisibility – now in Italian!

I just wanted to share a quick note that I just received the Italian edition of Invisibility, and it looks fantastic! I am also happy to report that since the word “invisibility” is quite similar in Italian, they were able … Continue reading

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