


“The science behind what makes these sculptures move is called a homopolar motor: a direct current electric motor that produces constant circular motion. They’re remarkably easy to build. Yukawa’s sculptures, on the other hand, are not. To build the homopolar motar, all you need is a small magnet on one end of a battery. Then place a free-standing conducting wire on top, thus completing the circuit.”
[Found here.]

[Found in here.]
The Password [via].
Seen that scene many times, but it wasn’t until recently that I connected it to something I read years ago.
The Code Breakers” by David Kahn is a classic book on the history of cryptology. In Chapter 2 he described the simple alphabet letter-shift that every schoolboy knows, but then he double-encrypts the shift with a password. Kahn used SWORDFISH as an example.
Using a simple alphabet shift from A to B:
TACKYRACCOONS reads SZBIXQZBBNNMR. Lot of repeated letters, but if you add a key like SWORDFISH to the shift, you get LWQBVGIUJGKJ, and it’s tougher to crack. That’s kind of how the WWII German Enigma machine worked.
Leadbelly cover found here.
Grace Slick’s vocals (sans backup music) on White Rabbit creeps me right out [via]. “Remember what the door mouse said.” Oh shut up. Go feed your cats or something.
I need an aural palate cleanser after that one, so let’s roll with this:
Yeah, Ernie Andrews, one of the greatest big band soul singers of all time, and “Do I Worry” is one of my all-time favorites.
Have a great weekend or two, folks. We’ll keep the porch light on.

[Found here, and there’s more at the link.]

Covfefe Wins the Breeder’s Cup.
Don’t look at this without protection.
Porcupine talks about pumpkins [via].
“We don’ need no steenkin’ border wall!” Oh wait…
I don’t know who put it together, but THIS is a great mix.
Guy cheats on his diet & his trainer goes all Mr. T on him.
(Sound up!)
The Wrangellian Eruptions preceded The Carnian Pluvial Episode.
But you already knew that.
Carl Sagan’s Bullsh*t detector. I saw this long ago, and it works. The linked post include a list of classic logical fallacies (including “Begging the Question,” and it doesn’t mean what you think it means).
From the “Well, Duh” Department:
It takes 11.57 days for a million seconds to pass.
It takes 31 years 8.5 months for a billion seconds to pass.
It takes 31,710 years for a trillion seconds to pass.
Oh, and 1 millionth of a mile = 1/16th of an inch.
It amazes me that this needs to be explained, but there it is.
I remember a teacher that I had…
From the Archives: 1 year ago. 5 years ago. 10 years ago.
A Humble Request. Updated: Great news. She was finally allowed to grant POA to her long-time friend. Thanks to all who contribute – every little bit helps.
[Top image from here.]
Training the bot is pretty cool. How it was made is cooler:
[Found here. Don’t worry, it’s a safe site. They had a coordinated WOT report attack years ago by some people who didn’t like their opinions. If you subscribe to WOT, please mark the site as safe. They don’t deserve this unwarranted abuse. Never have. SFK. SFW.]
In 1992, The Blues Brothers Band did Henry Mancini’s 1958 classic “Theme To Peter Gunn” justice. Other notable artists covered it, including Duane Eddy, Dick Dale, Jeff Beck and Deodato.
Emerson Lake & Palmer‘s version is probably the most pretentious, while Roy Buchanan just quietly walks up and then BAM. Right in your face.
Link Wray took some liberties with the song, made it nasty, and renamed it “Switchblade.” I couldn’t find a live vid, but I found this:
Awesome.
Have a great weekend, folks. Be back here for more stuff.