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Posts Made By: James Brown

May 13, 2009 04:15 PM Forum: Politics

Obama: Right On Afghanistan

Posted By James Brown

Rod Kaufman said:

Unlike Bush, Obama is right on target in Afghanistan. This, from a conservative author:
http://www.latimes.com/news/opinion/commentary/la-oe-boot13-2009may13,0,1278653.story
Change you CAN believe in...

Hi Rod:

Good opinion piece. I think a fair summarization is this:

The war in Afghanistan is getting on track because we are now doing there (with respect to tactics and leadership) exactly what Bush did in Iran, starting in 2007.

I agree with the author. Are you ready to give the Bush team credit for the recent success in Iraq and for developing a military model that will possibly also work in Afghanistan?

Jim

June 15, 2009 03:35 PM Forum: Refractors

A shorter diagonal?

Posted By James Brown

Robert Howe said:

Hi ladies and gents,

Preparing to photograph an eclipse at sea, I am trying several combinations of telescopes and cameras. I have a lovely fast refractor that I would like to use for wide field imaging, but the camera only comes into focus if used straight thru with an extender; a 2 inch diagonal is too long by a very slight amount.

For the sake of stability I will have the mount as low as I can; focusing straight through will be difficult even with a solar filter, as I will likely be dazzled by a chance glance of sunlight. Is there any way to shorten the light path of a 2 inch star diagonal? Does anyone sell a shorter 2 inch diagonal?

Cheers

Robert Howe

Hi Robert:

Baader's T-2 diagonal is very short and there are tons of camera connection options. The prism version of this diagnal comes with Baader Mark V binoviewers specifically for its short path length. There is also a mirror version. The T-2 prism has less than 2" sized aperture though, and I suppose it might vignette, depending on your camera.

http://www.buytelescopes.com/product.aspx?p_id=5738&store_id=&did=#

Jim

June 15, 2009 04:41 PM Forum: Politics

This is why we voted in the liberal Democrats

Posted By James Brown

Troy Bunch said:

As of 2005, according to the “Economist Intelligence Unit”, the US ranked 13th in the quality of life index. Many of those countries that ranked higher are social democracies.

We need change… that’s why we voted in a liberal Democrat. Love it, change it, or leave.

Hi Troy:

You're relying on old numbers. In the most recent ranking (2008 ranking based upon 2006 data) we have moved up. The "quality of life index" is a second name for what is more formally known as the HDI; the human development index. Here is the top part of the most current ranking:

2006 HDI Ranking:

1. Norway
2. Iceland
3. Australia
4. Ireland
5. Sweden
6. Canada
7. Japan
8. United States
9. Switzerland
10. Netherlands
11. Finland
12. Luxembourg
13. Belgium
14. Austria
15. Denmark
16. France
17. Italy
18. United Kingdom
19. Spain
20. New Zealand
21. Germany

On the merits, I would say that the US is doing spectacularly. We are the only super-large-population and super-diversely-populated nation in the top 10. The five most populous countries on earth, in order, are China, India, the USA, Indonesia and Brazil. Where are China, India, Indonesia and Brazil on these lists?

That being said, we are not comparing apples to oranges here. A social democracy might work quite well for Norway or Iceland etc. These are small, homogeneous societies. They have virtually no immigration, legal or otherwise. They have cultural traditions that work well for them, but which are vastly different from ours. I am glad that these countries have their act together, but there is absolutely no reason to think that the social democracy model is readily transported to a larger more socially complex nation. You will see that France and Germany are well below us. I think this is telling.

Back to your main point, I respectfully disagree. We voted in a liberal democrat because he had the very good fortune to be running against a republican. Sure the nation wanted change. The majority wanted change from Bush though, not a fundamental change in governance.

Left over public opinion against the war assured that whoever ran for the GOP would lose. The economic collapse in September nailed the coffin lid shut. Many pundits, including myself, predicted a huge democratic sweep a year before the election. the polls were not ambiguous. The pendulum will swing back of course. Whether it swings slowly (8-12 years) or fast (4 years) depends upon how well things work out with the economy.

You will recall that Reagan almost swept the Electoral College only 4 years after Gerald Ford lost because of the Nixon pardon. Public sentiment can change on a dime if the economy stays bad or gets worse. Jim Babcock was right about one thing. We are a fairly conservative society. I would expand this and say that a slim majority is fiscally conservative society and a slim majority is socially liberal. this assures that the pendulum will swing.

More importantly, Americans like political balance. Unless Obama achieves spectacular success with the economy, I predict that the democrats will lose quite a few congressional seats over the next 4 years. Reelection for Obama is not a given if the economy remains in the doldrums for too long.

Jim

June 17, 2009 03:26 AM Forum: Equipment Talk

Tak Teegul Question

Posted By James Brown

Michael Wolfson said:

Hi -- I have a Tak Teegul with the Lapides modification. Does anyone know how the two parts of this (wonderful) mount are attached to each other? E.g. does the top portion twist off, with the black cylindrical connector (about 3" dia x 1") then bolted to the other portion? (I have no intention of diassembling the mechanisms within each portion, BTW) Thanks -- Michael

Hi Michael:

It has been a while since I took mine apart, but the top does not twist off.

If memory serves, first you loosen the 3 set screws in the base part. Loosen them quite a bit. These screws secure a dovetail surface that holds the actual mount base to the azimuth axis assembly. If you look at the very bottom of figure 4 of this article I wrote a long time ago you can see the dovetail surface:

http://www.astromart.com/articles/article.asp?article_id=255

Pull the base from the azimuth axis assembly(it is snug, but should separate easily when the set screws are real loose). Look inside the azimuth axis and you will see the allen bolts that hold the altitude axis assembly to the azimuth axis assembly. It is real easy to take apart and reassemble. At no time are the actual bearing surfaces or the worm and wheel gears exposed.

Jim

June 26, 2009 11:07 PM Forum: CCD Imaging and Processing/Deep Sky

Milky Way wide angle

Posted By James Brown

Gorgeous!

Jim

July 8, 2009 03:49 AM Forum: Politics

A litmus test of your 1st Amendment rights

Posted By James Brown

Erwin Miller said:

http://www.nytimes.com/2009/07/08/us/08churchill.html?ref=us

http://www.denverpost.com/search/ci_12769291

So sorry, you don't have any!

No Erwin; our 1st Amendment rights are well and good. The Churchill case actually proves it. If the Bill of Rights did not exist, Churchill would have been jailed for his “little Eichmann” comments. If your opinion were correct; “that anyone of us can be ferreted out for our political views and persecuted…” Churchill would be dead or in a slave camp right now.

David Lane was paid to make this appear to be a First Amendment case. It was the only card he had to play since Churchill's academic fraud and plagiarism are well documented. Lane did a good job in the courtroom and convinced a majority of the jurors that Churchill was fired for his unpopular political comments. Those are about the only folks he convinced. You are perhaps the first Coloradan I have met who believes the spin that Churchill was fired for the political content of his speech.

The fact that he called attention to himself by outrageous political speech is just the way it goes. After Churchill was fired, he and his attorney hid behind the 1st Amendment to deflect attention from the real facts. If Churchill had not been a bombastic political trash talker his firing would have been uncontroversial and little observed. Just because someone enjoys exercising his 1st Amendment rights way beyond the bounds of human decency does not mean that he is then forevermore immune from well founded charges of academic fraud and plagiarism.

Jim


July 9, 2009 02:43 PM Forum: Politics

Completely off topic...

Posted By James Brown

Jack Day said:

But I couldn't resist! 8)

2nd light for my rebuilt 14" f/5.4
3/4" plate glass mirror that I ground myself.

Still have some wood to remove and some staining / sealing. I did see M57 and split the Double Double easily at 90x.

Sorry for the distraction...
wink

It must be pretty satisfying to grind a mirror and then use it under the stars! I've built the non-optical parts of a few telescopes and like that aspect of the hobby a lot, but I've never tackled a mirror. It is on the "some day" list though!

Jim

July 22, 2009 03:49 PM Forum: Telescope Making

Stress testing mirrors

Posted By James Brown

Hi Rob:

Long time no see! I hope you are well. I'm no expert, but those marks do look a lot like the "quench marks" you can see in a tempered glass auto window under certain light, and with polarized sun glasses on.

Quench marks show the stress/strain pattern intentionally fabricated into tempered glass by careful heating and cooling, to strengthen the glass, and to make sure it breaks into little squares.

If this is in fact tempered glass, I imagine that making a mirror with it will be impossible because of the designed internal stress/strain zones.

Jim

July 23, 2009 06:54 PM Forum: CCD Imaging and Processing/Deep Sky

First Light - FLI Microline 3200ME

Posted By James Brown

Beautiful image Tyler!

Jim

July 23, 2009 08:13 PM Forum: Politics

The Professor who cried WOLF!

Posted By James Brown

jeff catalina said:

Henry Louis Gates.

If a cop responds to your home to investigate a possible burglary in progress, refusing to show identification, making a scene, and loudly, belligerently accusing that cop of racism (and insulting his mother, btw) is probably going to get you arrested for disorderly conduct. Professor Gates should have simply produced his ID proving his residence, and then said "thank you" to the officer who may very well been risking his life to protect Gates' property.

Racism exists in America, of that there's no doubt. But I'm going to go out on a limb and suggest that Mr. Gates has damaged not only his own reputation and credibility as a scholar, but also, and more importantly, the efforts of those (admittedly few) well-meaning folks who work to ensure racism and stereotypes one day become a thing of the past.




Nice post Jeff. I suppose no one has replied because what you said is well said, reasonable and hard to dispute.

Interestingly, your take is not universal. I did not watch the Obama press conference yesterday, but I understand from drive to work radio that Obama said that the police response was "stupid." I suppose he'll have to retract that at some point in the future.

Jim