Category Archives: Physics

New theoretical results in the study of extraordinary optical transmission

Right after “challenging” my fellow science bloggers to find and write about an old scientific paper, I take a hypocritical turn and write about some recent results in the theory of extraordinary optical transmission! In a paper that came out … Continue reading →

Posted in Optics, Physics | 10 Comments

Invisibility Physics: Acceleration without radiation, part I

A couple of years ago, a number of physicists made international news (some descriptions here and here) by proposing that “cloaking devices” were theoretically possible to construct. Two papers appeared consecutively in Science Magazine in May 2006, one by U. … Continue reading →

Posted in Invisibility, Optics, Physics | 17 Comments

Like a zombie, perpetual motion digs itself out of the grave, again

Wandering through StumbleUpon.com‘s science links often looks more like a drunken stagger through the realm of crackpot science. The previous one I found, using Coulomb’s law to get free energy, I passed along to Tyler to deal with as it … Continue reading →

Posted in ... the Hell?, Physics | 8 Comments

Fizeau’s experiment: The original paper

When I wrote my ‘speed of light’ post, I had to do a lot of searching to find Fizeau’s original paper. Fizeau, as I mentioned, produced the first terrestrial measurement of the speed of light, using a rapidly rotating toothed … Continue reading →

Posted in Physics | 17 Comments

Relativity: Measuring the speed of light

When I was an undergraduate, one of my professors told the following funny (and probably apocryphal) anecdote (recalled from memory): A court case was being tried in New Mexico. A group of pornographers were charged with smuggling pornography from Mexico … Continue reading →

Posted in Optics, Physics, Relativity | 20 Comments

Event horizons in water flow: the math!

In a previous post, I discussed recent research which demonstrated the creation of an artificial ‘event horizon’ in a fiber optic cable. In that post, I described how a river speeding up as it goes towards a waterfall has an … Continue reading →

Posted in Mathematics, Physics | Leave a comment

Point Break: Mars!

My mind works in rather silly ways sometimes. Posting about skydiving soon after posting about avalanches on Mars, I got to thinking about how cool it would be to skydive off of a Martian cliff. Then I started to wonder: … Continue reading →

Posted in Physics | 6 Comments

Relativity: Newtonian relativity

In the first post on Einstein’s relativity, we discussed the discoveries and theories which served as the precursors to Einstein’s work. The most significant of these is Newton’s own version of relativity, now dubbed ‘Newtonian relativity’. Before we continue a … Continue reading →

Posted in Physics, Relativity | 6 Comments

The pre-history of Einstein’s relativity

I’m planning to do a long-term series of posts on Einstein’s relativity, starting with the special theory and progressing to the general theory (if you don’t know what the difference is, that’s okay, ’cause I’m gonna explain it all, eventually). … Continue reading →

Posted in Physics, Relativity | 10 Comments

Scientists make ‘blackest’ material ever!

This was an interesting bit of science news from last week: according to an article on optics.org (free registration required), a research team from Rensselaer Polytechnic Institute and Rice University has fabricated the ‘blackest’ material ever known, which reflects just … Continue reading →

Posted in Optics, Physics | Leave a comment