Category Archives: Uncategorized

EmDrive and Physics in General

So, if the news can be believed, the EmDrive has triggered some re-thinking about how the universe works. Obviously, this all supposes that the engine actually works. Today’s related link comes fromYahoo! News:

EmDrive: UK scientist claims ‘new physics’ explains galaxy rotation and theoretical space propulsion

The original article is from IB Times UK, who blocks you if you’ve got an Ad Blocker on.

(And, yes, I’m alive. The day job is still really busy. In retrospect, it’s amazing that I made any conventions at all last year.)

More about the EM Drive

From Futurism, we have an article on the latest theory about the EM drive.

In short: the drive is not reaction-less, but emits photons. They’re not being detected because they’re coming out of the drive in pairs with opposing phases. Those photons escape the EM drive’s cavity because the phase conflict eliminates the photons’ magnetic field — which also means that the photons can’t be detected by normal means.

Obviously, add “theoretically” to most every sentence above. The cool thing about this theory is that it fits the observations and doesn’t seriously challenge what we already think we know about physics.

The monkey in the wrench? It’s finding those emitted photons to prove the theory. In the Daily Mail’s version of the article, the author suggests that they’ll need an interferometer to do it. (That’s the same device that was just used to detect gravity waves.)

EM Drive Update

This is becoming really interesting. According to the news, a researcher who’s really into debunking these kind of claims took a shot at the EM Drive recently. Like all the previous tests, the equipment claimed the drive produced thrust, and the researcher was unable to identify any error.

At this point, this is the fourth different team to experiment with the drive, and they’ve all had the same result. Either we’ve stumbled onto a new propulsion system, or a wonderfully new way to screw up the various sensors used. Obviously, the first possibility would be ground-breaking; but the second is still very interesting.

For those who want to dig through the paper itself, it’s here.

Comic-Con International, 2015

So they’ve got the schedule up. We’re going to be in the Hyatt, on the Fourth Floor (Regatta A).

We’re going to be there Friday afternoon (1:30 to 5:00) and Saturday (10:00 to 5:00, minus lunch). Right now, the schedule says we’re going to be there from Thursday to Sunday, which is not true. We’re trying to get that corrected.

World War II clearly needed better writers

As a resource for GMs whose players might say, “that doesn’t make any sense,” I give you this:

Let’s start with the bad guys. Battalions of stormtroopers dressed in all black, check. Secret police, check. Determination to brutally kill everyone who doesn’t look like them, check. Leader with a tiny villain mustache and a tendency to go into apopleptic rage when he doesn’t get his way, check.

World War II clearly needed better writers