Category Archives: Optics

19th century optics FAILs

My recent post on the Pepper-Dircks ghost didn’t include even close to all of the interesting tidbits it could have!  There are so many things to learn from the story of the ghost, including some lessons about optics. For example: … Continue reading

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Michael Faraday meets “The Ghost”

My most recent blog post, concerning the history of the Pepper-Dircks Ghost, was extremely long but didn’t even include all the fascinating aspects of its history.  For instance: the ghost was such an incredibly effective illusion that it even drew … Continue reading

Posted in History of science, Optics, Physics | 1 Comment

Dircks and Pepper: A Tale of Two Ghosts

It is often told that in the 1860s, John Henry Pepper used science and technology to invent a ghost. Or did he? This is the surprisingly tricky question that we will try to answer in this lengthy post. It is a … Continue reading

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Light, by Kimberly Arcand and Megan Watzke

I have a lot of catching up to do in terms of popular science books, so I’ve recently been doing an intense amount of reading.  A lot of my focus has been on reading books by people I’m acquainted with … Continue reading

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“Singular Optics” is available for pre-order!

Those who know me well know that I’ve been working hard for several years on a new optics textbook.  Well, I can finally say that it is available for pre-order on Amazon!  The book is Singular Optics, by me: Gregory … Continue reading

Posted in Optics, Personal | 2 Comments

Optics by hot air balloon?

The first in a (hopefully) series of posts inspired by topics covered in my upcoming textbook on singular optics. Crewed balloon rides have a surprisingly large role in the history of science.  The first untethered balloon flight was performed in Paris on November … Continue reading

Posted in Optics, Physics | 2 Comments

Physics demonstrations: the Mirascope

I recently participated again in the annual UNCC Science and Technology Expo, showing off neat science demos to the public.  This year, I decided to add a table of “Optics and Illusions,” to show how science and our own brains can … Continue reading

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