Tag Archives: science

What is an “optical skyrmion?”

Preparing to write the final section for the second edition of my Singular Optics textbook that happens to be on, you guessed it, optical skyrmions! I thought I would try writing a non-technical explanation first to straighten out all the … Continue reading

Posted in Optics, Physics | Tagged , , | Leave a comment

Cork balls, Edwardian magazines, and optical physics

Okay, let’s look at a really cute physics demonstration that I found in a really unusual place and which has unexpected connections to optical physics! The demonstration in question is set up as follows: attach a string to a 1 … Continue reading

Posted in History of science, Optics, Physics | Tagged , , | Leave a comment

New falling cat paper just dropped!

So I’m now known as the falling cat physics guy, thanks to writing a popular science book on the history of scientists studying how cats land on their feet (“cat turning”) that you may or may not have heard of! … Continue reading

Posted in Animals, Physics | Tagged , , | 3 Comments

What is an optical caustic?

Here’s another post based on the revisions I’m making for the second edition of my Singular Optics textbook! Caustics are a subject that I’ve sort of casually understood for ages but never well enough to explain it, but book work … Continue reading

Posted in Mathematics, Optics | Tagged , , | 7 Comments

Our new paper on invisibility physics!

So I’ve written a lot about the physics of invisibility on this blog and have even written a popular science book on the subject, but many people may not know that I also still occasionally do some research on invisibility … Continue reading

Posted in Invisibility, Personal | Tagged , , | 2 Comments

Infinite singularities in an optical beam???

Working on the second edition of my Singular Optics textbook and thought I would blog about some of the fun developments in the field that I’ve come across while doing the book research! Light has wave properties, and as a … Continue reading

Posted in Optics | Tagged , | 4 Comments

The most beautiful wrong equation in history (1841)

One of the topics of the history of science that has continued to fascinate me is the discovery of the principle of conservation of energy. As I discussed in my three-part series “Booms, Blood, and Beer” (part 1, part 2, … Continue reading

Posted in History of science, Physics | Tagged , , , | 2 Comments

What is a Carnot engine?

I’ve recently been trying to “relearn” thermodynamics, a subject that I haven’t really looked at, or had to look at, for years. I put “relearn” in quotes because I never really learned it well in the first place! One of … Continue reading

Posted in History of science, Physics | Tagged , , , , | Leave a comment

Maxwell invents a demon, people get angry (1879)

Some time ago, I was browsing 150 year old popular science magazines as one does and I found an amusing editorial from 1879 in The Popular Science Monthly titled “Explanations that do not explain.” The unsigned editorial discussed a recent … Continue reading

Posted in History of science, Physics | Tagged , , , | 3 Comments

What is a quantum eraser?

My training and background as a physicist is largely in the field of so-called classical optics: the study of the wave properties of light. Lately, however, I’ve been planning more investigations into quantum optics — the study of the quantum … Continue reading

Posted in Optics, Physics | Tagged , , , , | 3 Comments