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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
Physics demonstrations: invisibility on the cheap!
I spend a lot of time talking about invisibility on this blog, and it really has become a fascinating and vibrant area of optics, with lots of remarkable results. However, most of those results are theoretical, and the experimental results … Continue reading
Posted in Invisibility, Optics, Physics demos
4 Comments
How to become invisible by “hiding under the carpet”
Since the first theoretical cloaking papers in 2006, the topic of optical invisibility has just gotten stranger and stranger. There have been proposals of optical wormholes, perfect optical illusions, space-time cloaks, and more. Perhaps even more surprising, however, is the … Continue reading
Posted in Invisibility, Optics
4 Comments
Optical wormholes: punching virtual tunnels in space via metamaterials!
Though the introduction of optical invisibility cloaks in 2006 caused a huge sensation around the world in both the media and the general public, arguably even more significant to the optical science community is the technique used to design cloaks. … Continue reading
Posted in Invisibility, Optics
5 Comments
Illusion optics: the physics of making things look like other things!
The idea of optical cloaking, or more generally the concept of invisibility, has gone from science fiction trope to serious topic of physics research to subfield of optical science in its own right in a remarkably short period of time. … Continue reading
Posted in Invisibility, Optics
1 Comment
Invention of the “perfect” invisibility cloak?
In 2006, a number of researchers made international headlines with the announcement that they had laid the theoretical foundations for the construction of an “invisibility cloak,” a device that has been a staple of horror, fantasy and science fiction for … Continue reading
Posted in Invisibility, Optics
5 Comments
Making magnets speak: the Barkhausen effect
Occasionally I come across a demonstration of physics that is so simple to implement yet illustrates a phenomenon so profound that it almost takes my breath away. I learned of one such demonstration recently, which requires only a handful of … Continue reading
Posted in Physics
6 Comments
How many uses for a nuclear weapon can YOU think of?
Ah, nuclear weapons! Having grown up while the Cold War was still going strong, I can almost think about nuclear bombs with a sentimental eye — though the threat of nuclear terrorism is still a possibility, we’re much further away … Continue reading
Posted in ... the Hell?, History of science, Physics
30 Comments
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
Skulls in the Stars 