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The author of Skulls in the Stars is a professor of physics, specializing in optical science, at UNC Charlotte. The blog covers topics in physics and optics, the history of science, classic pulp fantasy and horror fiction, and the surprising intersections between these areas. -
Category Archives: Physics
Relativity: Ten minutes to Alpha Centauri?
Einstein’s special theory of relativity is arguably the most amazing physical theory ever conceived. It utterly transformed our view of the universe, completely eradicating the view that space and time are independent quantities and giving us a new unified fabric … Continue reading
Posted in Physics, Relativity
11 Comments
Physics demonstrations: vortex cannon!
As I’ve said before, some of the best scientific demonstrations are things that can be put together with simple everyday components and exhibit surprising, even counter-intuitive, phenomena. One of my all-time favorite demonstrations is of this form! All one needs … Continue reading
Posted in Physics demos
20 Comments
My 5-year blogiversary!
I almost missed it! It turns out today, August 14th, 2012, is the 5-year anniversary of the founding of this blog! I would have in fact missed my “blogiversary” entirely if Jason Goldman of The Thoughtful Animal hadn’t tweeted congratulations … Continue reading
Posted in Personal, Physics
10 Comments
What’s the difference between “transparency” and “invisibility”?
In writing my previous post on The Murderer Invisible, I started thinking again about the relationship between something being “transparent” and something being truly “invisible”. Most of us can appreciate that, under the right circumstances, a transparent object like a … Continue reading
Posted in Invisibility, Optics
8 Comments
Philip Wylie’s The Murderer Invisible
If it were a mystery novel, The Murderer Invisible would be a failure right off the bat, as the plot twist is explained right there in the title! As science fiction and horror, however, this 1931 book by Philip Wylie … Continue reading
Posted in Invisibility, Science fiction
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My own little “Higgs”-related story
The physics community is in a near frenzy today with the expectation that, tomorrow at 9 am Geneva time, researchers at the Large Hadron Collider will announce the first significant evidence that they’ve discovered the “Higgs boson”, a fundamental particle … Continue reading
Posted in Personal, Physics
10 Comments
Physics demonstrations: rolling uphill
Some of the best and most enjoyable demonstrations of physics principles can be put together quite readily with very cheap materials. A good example of this was the simple version of the Magdeburg hemisphere demo I discussed previously; another example … Continue reading
Posted in Physics demos
2 Comments
Physics demonstrations: Magdeburg hemispheres
Sometimes one can demonstrate very profound and remarkable physics with very simple, even mundane, tools. Last week I received the tools to perform one such demonstration by mail: This pair of iron hemispheres, with handles attached and a valve on … Continue reading
Posted in Physics demos
22 Comments
Physics demonstrations: the Pythagoras cup
The past few weeks I’ve been preparing a lot of entertaining demonstrations of physics principles for a Science and Technology Expo to be held at UNC Charlotte on April 29th. I thought I’d start writing short posts highlighting the various … Continue reading
Posted in Physics demos
20 Comments
1901 — the year the nuclear atom was “invented”!
So what does an atom look like? If you were to pull someone at random off the street and ask them to draw a picture of an atom, they would more likely than not draw something like this: Almost everybody … Continue reading
Posted in History of science, Physics
7 Comments
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