Anal nathrach, orth' bhais's bethad, do chel denmha

[scottobear]

Don't forget, Friday September 19 is Talk Like A Pirate Day!

Ah, wonderful! "You are sire to 72 other vampires, including: LdySaphyre (7040 pints), MissV (2613 pints), Liliana (2570 pints), gilbella (1266 pints), mixedresults (1246 pints), Morgoth (564 pints), Nathanael (302 pints), night_flyer (300 pints), wchmum (281 pints), King of Ice (222 pints)." Well on my way to having a gang of 100 by Halloween. Care to be a part of my gang of vampires?

I can tell every time the lemmiwinks episode of South Park comes on, because I get massive hits looking for the lyrics.

Via mskaren911 - Any Photo on Playing cards Deal yourself in for fun with this pack of photo playing cards in a tin! Your favorite photo is featured on the back of every card in this standard, 52 card deck (plus 2 jokers). You also get a matching tin to hold your cards in! Makes a uniquely personal gift for card playing friends or family members. That's a pretty cool idea, although a wee bit pricey for what you get.

I took an hour nap this afternoon, and I feel pretty good, even after yesterday's poor night's sleep. Only

Ok, I worked out what was partly fubar with my system...MSIE had a lot of damaged items. If your system is being naughty, feel free to try the following. (I take no responsibility for your system, so go at your own risk.) I still need to replace my power supply and add, confirm the rest of my hardware. Yanking out and reinstalling Java runtimes seems to have helped a lot.

RESOLUTION

To troubleshoot and resolve this behavior, empty the contents of the Temporary Internet Files folder, and then delete the files in the Downloaded Program Files folder that are listed as either Unknown or Damaged. To do so:

1. Start Internet Explorer (if it is not already started).
2. Empty the contents of the Temporary Internet Files folder. To do so:
   1. On the Tools menu, click Internet Options.
   2. Click the General tab.
   3. Under Temporary Internet files, click Delete Files.
   4. When you are prompted to delete all temporary Internet files, click OK.
3. In the Downloaded Program Files folder on your hard disk, remove the files that are listed as either Unknown or Damaged. To do so:
   1. On the Tools menu, click Internet Options.
   2. Click the General tab.
   3. Under Temporary Internet files, click Settings.
   4. Click View Objects. The list of program files that are downloaded to the SystemRoot\Downloaded Program Files folder on your hard disk appears in the Downloaded Program Files window.
   5. In the Status column, note the files that are listed as either Unknown or Damaged. Remove these files. To do so, right-click the file, and then click Remove.
   6. When you are prompted to confirm the removal, click Yes.
   7. Close the Downloaded Program Files window, and then click OK two times.


If the issue continues to occur after you remove all downloaded program files that are listed as Unknown or Damaged, try removing the other downloaded program files that are on the list.

Note: The next time that you need one of the files that you removed from the Downloaded Program Files folder, you will receive a prompt to download the file to your hard disk in Internet Explorer.

Something that may dismay ol' Danny when I tell him... or maybe not - MOND - (Modified Newtonian Dynamics)

Mordehai Milgrom started looking at dark matter and galactic revolutions. The dark matter/energy thing has some flaws and problems. He starts doing math, discovers a relatively simple mathematical adjustment to gravity that fits all known galactic weirdness.

There are several esthetic problems, the major one of which is there is no theoretical basis for MOND. It's observational. This has most other astronomers leery or dismissive about it. But, well... it works.

MOND works as follows... gravity is not always the same, and behaves differently under low accelerations. Essentially, gravity at low accelerations is stronger than would be determined by regular gravity laws.

Below this acceleration, called a0, acceleration becomes the square root of gravitational force. A0 x age of the universe (as far as people guess) happens to be around the speed of light. There is apparently something relating a0 and the cosmological constant.

As goofy as this sounds, there are several points that support the idea... one, it fits galactic observations better than dark matter. Two... Pioneer 10 and 11.

Both left the solar system and, before shutting down, mysteriously showed deceleration that did not fit what people were expecting. Engineers frantically looked for gas leaks, possible other bodies, etc... nothing. It is still a mystery why this happened. However... it fits MOND. Farther than about .1 light year from the sun you hit a0 levels.

It also explains why we never observe it here... everything in the solar system is under acceleration of the sun, well above a0.

If MOND is true, it means inertial and gravitational mass are not tied strictly. Which is f-ing weird.

But there are a lot of puzzles right now... perhaps MOND will uncover why the expansion of the universe is accelerating (which makes no sense).

For more fun physics, try - Amusement park physics: Design your own roller coaster online and see why you design succeed or failed.

Zombie City in 3-D (The Zombie simulation is now an exe, and you can get a better feel of how the city looks at an isometric tilt. C++ Source in the Zip)

Comments

[juliabee.livejournal.com]

Ha!! I'd seen the talk like a pirate in someone's blog, and I was giong to post it in your comments.

You got some pirating to do tomorrow, matey!

[scottobear.livejournal.com]

Yarr, That ye be tellin' true, lassie!

Re a theoretical support for MOND...

[(Anonymous)]

There is a way of deriving the MOND effect from pretty much elementary quantum mechanics, but it relies on some assumptions. The first is that Penrose is right when he talks about spontaneous state reduction having something to do with gravity. The second is that the "Quantum Zeno Effect", where a quantum system that is repeatedly observed (and is therefore forced into an eigenstate) can be slowed down in time. The third is that velocity, like angular momentum, is quantized. This makes the Lorentz symmetry an approximation, rather than an exact symmetry of space-time.

If you take these things together, then pertubation analysis shows that it will be very difficult to apply very small accelerations to objects. In particular, the acceleration that results from a very small force will be less than expected. If you consider the example of a gravitating mass with a test particle that is charged, and you apply enough charge on to the gravitating body to cancel the acceleration of gravity, then the conclusion is that the test particle will show that the gravitational acceleration of the massive body is stronger than expected. Then, by conservation of momentum, all observers must make the same conclusion.

A write up with complete calculations for the effect, and showing that the MOND result is precisely predicted, is in section 6 of this link:
http://brannenworks.com/MsrEther.html

Carl

Re: Re a theoretical support for MOND...

[scottobear.livejournal.com]

Thank you so much for the followup!