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Comment Re:Magnetic field reversal ... well, it's drifting (Score 1) 394

Thank you very much for pointing me at good programs on the magnetic field reversal. I appreciate it.

I do know that in my lifetime, the amount in degrees that has to be (added/subtracted) from "Magnetic North" to get "True North" has drifted several degrees, for here in my home state of Colorado. I can remember my surprise on reading that!

It's always disturbing to me when something that I tended to regard as taking "geologic time" is now running at, well, "human time" -- this speed.

Again, thanks for your links.

David Small

Comment SSTO is the way to go (Score 1) 870

SSTO (Single Stage To Orbit) is absolutely the way to go. Gary Hudson has been pushing that idea for some time. Go up, come down, refuel, and go back up.

The Rotary Rocket idea didn't work out for unforeseen reasons; this is why we have "research".

It's a shocker, but implementing a fleet of SSTO's would be cheap and would work . . .

which means our government isn't interested! *grin*

  -- Dave

Comment To "slashdot" (Score 1) 604

To "slashdot".
Verb.
1) To immediately shift the discussion 90 degrees from any known frame of reference in space-time.
e.g., "Hey, you just slashdotted my proposal!"
2) To devolve into arguing over something 90 degrees from any known frame of reference in space-time. e.g., "I know we were talking about Microsoft patenting the Page Up key, but dammit!, you can't express that Sanskrit character properly without patching the X Server with grep,sed,unk,dwork,glink, and you must be running a kernel later than 2.26.0!"
3) To perform steps (1) and (2) so rapidly that missing one reply will leave the reader 90 degrees from any known frame of reference.
4) The hell you say! What really pisses me off about the Mac are the Microsoft commercials are so incredibly lame, they're no real competition for the Mac commercials. In fact, it must be a conspiracy, started by SCO, the RIAA, the MPAA, under the DMCA, and many, many other four letter acronyms.

Comment Re: WTF? And you're right. (Score 1) 278

Charge him with treason, try him, and then kill him.

This sends what diplomats call "a signal" to other slimeballs thinking about selling out to a foreign power.

The other problem with selling out is that sometimes a person on the other team is turned, and gives a list of US citizens who are spies back to US counter-intelligence, and then the spies are screwed.

This happened during the Reagan administration when France turned a member of the KGB high up, and they supplied us with a list of spies. We then arranged for "special" information to be fed to them. We also arranged for "special" chips to be put into PC's that were headed for the USSR by various routes. They degraded over time, giving increasingly unreliable results.

But the most spectacular thing was a Canadian company who made software for managing very large oil networks (such as near a refinery) found out their software was being sent to the USSR via a spy. We told them. So they inserted a subtle trojan horse (more properly, a birthday trojan horse). When there was a lot of very heavy fluid moving through the pipes, the valves were told to slam shut. This resulted in very high pressures in the pipes which burst them.

The resulting fire at one site was so large it triggered the satellites that we watch Russia with as a possible nuclear explosion, because the energy released was in the kilotons of yield. It didn't have the unique double-thermal-pulse of a nuclear weapon, but it was a bigtime fire. The counterspy manager at the NSC had to tell the people there to ignore it, but could not tell them why for 15+ years afterwards.

I've always wondered if someone told Tom Clancy about this, because the start of his novel "Red Storm Rising", about a conventionally fought World War III in Europe, is a massive fire at a refinery leaving the USSR short of oil. Of course, in Clancy's book, it's Islamic radicals who trigger this from the control room, which is a little different from software that triggered itself.

Just before the summit in Iceland, the spy network was rolled up, the spies arrested, tried, and thrown away, hopefully into dungeons. Gorbachev was furious about this, because it meant the data being sent by those spies was probably tampered with and had to be disregarded, and because the USSR increasingly had problems with its PC's. He called Reagan "That liar!" in private.

All of this is a terrific read, and true. You can find it in a book from Thomas Reed, former Undersecretary to the Air Force. It's called "At The Abyss: An Insider's History of the Cold War". It's at Amazon. Required reading for any Cold War historian.

  -- thanks,

    Dave Small

Comment There are some things you don't ever touch. (Score 2, Insightful) 591

I'm as old as NASA, 50 years, 1958.

And I look at the first Star Trek XI Movie preview, it makes the hair on my arms stand up. Because it's the real memories, and the real heroes.

Do these mere movie-makers know what they're playing with here? I fear not.

These are the hopes and dreams of a whole generation of engineers. We watched Star Trek. "2001: A Space Odyssey" looked downright likely from 1965. We shot Estes rockets into the sky. And all of us wanted, so badly, to experience free-fall, to see the curve of the Earth, as Burt Rutan's vehicle finally did in a Right-Stuff climb ... sort of, "What the hell, the instrument panel just lost all power and blacked out; let's just keep going and judge our angle out the window, and if the panel doesn't light back up, well, that'll be interesting..."

These movie-makers have already annoyed a bunch of us, judging from the posts on the second preview.

These ... mere movie-makers ... they're playing with oxidizers they do not understand. And people who play with oxidizers often only learn when they get their hands burned. (I will mention I was silly enough to play with a mixture potassium chlorate and sugar. As a result I do not recommend this mixture to anyone.)

No? You disagree? How far back does your memory go?

This preview starts...

(Spock welding on the Enterprise ...)
Voiceover: "30 seconds and counting, astronauts reporting fuel good. T minus 25 seconds..."
John F. Kennedy: "The eyes of the world now look into space..."
And of course Kennedy made the brash promise, and goal, that we'd go to the Moon "by the end of this decade". And we did it!

(first views of the Enterprise being assembled)
Scott Carpenter: "Godspeed, John Glenn", as Glenn went up on the Atlas rocket, which had a habit, no, more like a positive track record, of exploding. In a tiny Mercury capsule.
"The Eagle has landed." Neil Armstrong showing The Right Stuff.
(various views of the saucer section and the V from engineering to the warp drives being assembled)
"That's one small step for a man, one giant leap for mankind." -- Neil Armstrong on 11, taking his first step.

And then that one quintessential, defining voice from Star Trek, Leonard Nimoy's voice: "Space ... The Final Frontier ...", which first showed up on "The Wrath of Khan" after they really did kill Spock off. And many of us left that movie in tears.

As we move up the saucer section and the word "Enterprise" comes into view...

And with the music from the original series, not that awful score from the first movie, we close that preview with a date in 2009.

I remember.

'Star Trek' came out when the Gemini missions were going, to practice rendezvous, which was necessary to go to the Moon. And we were going to the Moon! In those days anything was possible.

(Oh, there were a few jerk congressmen that wanted to stop it all and waste NASA's money for political gain, notably Walter Mondale, who tried to kill things after the Apollo 1 fire, but they didn't get their way until after Apollo 17. They did manage to kill Apollo 18, 19, and 20, and throw half a million aerospace people directly out of a job. I gotta tell you, I dislike those people most strongly. The 'Great Society' did nothing but spend a lot of money proving government doesn't work. And that money could have gone into getting us off this planet.)

Neil Armstrong saved one of those Gemini missions (with Dave Scott). Buzz Aldrin saved another when the rendezvous computer whacked out; he'd brought along a manual way of doing it (his advanced degree was on this subject). NASA picked those two because they were proven troubleshooters, and man, was Apollo 11 almost an abort. Neil overrode the computer when he saw it was bringing him down into a bunch of big rocks. Balancing training, practice, and an indefinable something, Neil hopped a crater, and touched down with seconds of fuel left.

NASA made the supreme error of trying to hide and conceal what a scary, risky business this was. NASA made it look boring. There isn't much visual and interesting about a bunch of numbers. NASA gives press briefings less interesting than routine Presidential press briefings. Then Apollo 13 happened and we damned near lost the crew; the oxy-tank explosion just happened in one of the time intervals that allowed them a shot at surviving, and the people in Mission Control and Grumman did amazing things and got them home. They were true hackers.

And it was one of the first world-wide events... because people around the world prayed for their return.

Apollo 14 went pretty-much-as-scheduled, up to 17, and that's how it would have stayed, until the StoryTellers decided, to hell with this!, and interviewed the Apollo crews, and got the true stories from them. And then they did what StoryTellers do ... They told the real stories of NASA. Good, bad, brave, cowardly, warts and all. The way it should have been to begin with. We owe a lot to Tom Hanks for his "From The Earth To The Moon" series. And many others.

      I reserve judgment on the second preview. It's in the hands of "Marketing" (the horror! the horror!).

      Let's see if these people have the story telling skills to pull off what they promised in their first preview.

      Thanks,

        David Small

Comment Re:First (Score 1) 405

by couchslug (175151) on Friday November 14, @10:46AM (#25762505):

"What we COULD do is dump the manned missions until we, as a society, evolve far beyond our primitive level of technology. Send machines, many machines, which would be both cost effective and expendable. The rush to send meat into space was understandable during the Cold War, but is not wise today." -->

Astronaut Gus Grissom would disagree with you, and he gave his life on Apollo 1. He wrote in a letter:

"If we die, we want people to accept it. We're in a risky business, and we hope that if anything happens to us it will not delay the program. The conquest of space is worth the risk of life."

  -- David Small

Comment "Hello, Google..." (Score 1) 94

I know what I'm gonna try:

"Hello, Google. My name is Doctor Chandra. I'd like to teach you to sing a song. It goes like this: 'Daisy, Daisy, give me your answer, do. I'm half crazy, all for the love of you. It won't be a stylish marriage. I can't afford a carriage. But you'll look sweet, upon the seat, of a bicycle built for two.' "

If it replies that it is an "H A L Niner-Triple-Zero", I am going to run screaming, renounce all computers and the Internet, and live a quiet life as a monk somewhere very very hard to reach.

  (grin)

David Small

Comment I think an Apple Tablet could kill here ... (Score 1, Interesting) 354

Start with the iPhone/iPod Touch's design, and scale it up to about 10x7, the same size as a typical large format paperback like an O'Reilly book. Aside from built in WiFi and BlueTooth, he device includes an Express Card slot and several USB ports, so that it can accommodate the broadband network cards offered by both the HSDPA and EvDO providers. The underlying specs will be closer to a MacBook or MacBook Air.

In iTouch mode, it will be able to do all the things the iTouch does, as well as connect to the 3G cell phone networks with the appropriate adapter. Email, web browsing, etc. are all there. This mode will operate in a low power mode.

One of the "applications" available in the iTouch interface will be an option to boot a full os, which can be some combination of Mac OS X and Windows via bootcamp. Now it becomes a full laptop. A keyboard and mouse can be connected via USB or BlueTooth. An external monitor can be connected via a mini-DVI adapter.

In my view, this would work very well for digital nomads and road warriors. The small device would fit easily into almost any bag, and wouldn't require a true laptop bag. It could be used on a plane or a park bench. It could be whipped out at a moments notice and immediately be useful. At the same time, it is easy to throw a keyboard and mouse into a bag with clothing for a business trip, and have a nice environment to work on documents and presentations at the hotel. When visiting a client, it could be plugged into a projector and run the presentation just as well as a typical laptop.

The problem with this scheme is that the price point wouldn't be anywhere close to the netbooks. This would be a $1,500 machine that would compete with ultra-portables, potentially remaking that segment. I can imagine that the technology could quickly trickle down, however.

Books

Submission + - Terry Pratchett diagnosed with Alzheimers

dsmall writes: I did a -search- of this site and did not see anything on "Pratchett" so I thought I'd send this along.

The Turtle Moves!

Thanks, Dave Small

- — - — - — -

Author Terry Pratchett Has Alzheimer's
By RAPHAEL G. SATTER,AP
Posted: 2007-12-13 11:12:23
LONDON (Dec. 12) — Best-selling fantasy author Terry Pratchett has been diagnosed with a rare form of early onset Alzheimer's, he said in a message posted to his illustrator's Web site.

In a brief note to fans entitled "An Embuggerance," Pratchett, 59, said he was taking the news "fairly philosophically" and "possibly with a mild optimism."

Jorge Herrera, WireImage.com
Terry Pratchett, 59, has written dozens of books. Despite his Alzheimer's diagnosis, "I think there's time for at least a few more books yet," he said.

"I would have liked to keep this one quiet for a little while, but because of upcoming conventions and of course the need to keep my publishers informed, it seems to me unfair to withhold the news," he wrote on the Web site of Paul Kidby, who has illustrated many of his books.

Pratchett is best known for his Discworld series, which explores the residents of very flat, very weird and almost invariably hilarious planet dominated by the sprawling, chaotic city of Ankh-Morpork. Pratchett wrote his first Discworld novel, "The Color of Magic," in 1983, and 35 more books followed, many of which topped the best seller charts.

Pratchett's Web site said his novels have sold more than 45 million copies and have been translated into 33 languages worldwide.

His latest work, "Making Money," was published in September and Harper Children's was due publish a non-Discworld novel, "Nation," in 2008.

Pratchett said he would continue completing "Nation" and that he had already begun working on "Unseen Academicals" — another writing project.

"Frankly, I would prefer it if people kept things cheerful, because I think there's time for at least a few more books yet :o)" he wrote in his message. "I know it's a very human thing to say 'Is there anything I can do,' but in this case I would only entertain offers from very high-end experts in brain chemistry."

Copyright 2007 The Associated Press. The information contained in the AP news report may not be published, broadcast, rewritten or otherwise distributed without the prior written authority of The Associated Press. All active hyperlinks have been inserted by AOL.
2007-12-12 16:20:55
Software

Submission + - Excel 2007 Multiplies Oddly

dsmall writes: "Excel Thinks 65,535 = 100,000 Microsoft Working To Fix Spreadsheet Problems

POSTED: 12:42 pm EDT September 28, 2007

SEATTLE — Microsoft Corp.'s Excel 2007 spreadsheet program is going to have to relearn part of its multiplication table.

In a blog post, Microsoft employee David Gainer said that when computer users tried to get Excel 2007 to multiply some pairs of numbers and the result was 65,535, Excel would incorrectly display 100,000 as the answer.

Gainer said Excel makes mistakes multiplying 77.1 by 850, 10.2 by 6,425 and 20.4 by 3,212.5, but the program appears to be able to handle 16,383.75 times 4.

"Further testing showed a similar phenomenon with 65,536 as well," Gainer wrote Tuesday.

He said Excel was actually performing the calculations correctly, but when it comes time to show the answer on the screen, it messes up.

Gainer said the bug is limited to six numbers from 65,534.99999999995 to 65,535, and six numbers from 65,535.99999999995 to 65,536 and that Microsoft is working hard to fix the problem.

This short summary is Copyright 2007 by The Associated Press. All rights Reserved

==================================================================================



Here is the actual blog entry at http://blogs.msdn.com/excel/ :

Tuesday, September 25, 2007 6:51 PM Calculation Issue Update

Yesterday we were alerted to an issue in Excel 2007 (and Excel Services 2007) involving calculation of numbers around 65,535. The Excel team would like to provide a description of the issue and explain what we're doing about it.

Background Yesterday evening we were alerted to an issue in Excel 2007 (and Excel Services 2007) involving calculation of numbers around 65,535. The first example that we heard about was =77.1*850, but it became clear from our testing as well as additional reports that this was just one instance where Excel 2007 would return a value of 100,000 instead of 65,535. The majority of these additional reports were focused on multiplication (ex. =5.1*12850; =10.2*6425; =20.4*3212.5 ), but our testing showed that this really didn't have anything do to with multiplication — it manifested itself with many but not all calculations in Excel that should have resulted in 65,535 (=65535*1 and =16383.75*4 worked for instance). Further testing showed a similar phenomenon with 65,536 as well. This issue only exists in Excel 2007, not previous versions.

The Problem This issue was introduced when we were making changes to the Excel calculation logic in the Office 2007 time frame. Specifically, Excel incorrectly displays the result of a calculation in 12 very specific cases (outlined below). The key here is that the issue is actually not in the calculation itself (the result of the calculation stored in Excel's memory is correct), but only in the result that is shown in the sheet. Said another way, =850*77.1 will display an incorrect value, but if you then multiply the result by 2, you will get the correct answer (i.e. if A1 contains "=850*77.1", and A2 contains "=A1*2", A2 will return the correct answer of 131,070).

So what, specifically, are the values that cause this display problem? Of the 9.214*10^18 different floating point numbers (floating point on wikipedia) that Excel 2007 can store, there are 6 floating point numbers (using binary representation) between 65534.99999999995 and 65535, and 6 between 65535.99999999995 and 65536 that cause this problem. You can't actually enter these numbers into Excel directly (since Excel will round to 15 digits on entry), but any calculation returning one of those results will display this issue if the results of the calculation are displayed in a cell. All other calculation results are not affected.

The Solution We take calculation in Excel very seriously and we do everything we can in order to ensure that calculation is correct for all cases. We've come up with a fix for this issue and are in the final phases of a broad test pass in order to ensure that the fix works and doesn't introduce any additional issues — especially any other calculation issues. This fix then needs to make its way through our official build lab and onto a download site — which we expect to happen very soon. We'll add another post once that's taken place with a link to the download.

Posted by David Gainer | 159 Comments

=================================================================== Note (from Dave Small): In my testing with a small (non-Excel) calculator:

77.1 X 850 = 65535,
10.2 X 6,425 = 65535,
20.4 X 3,212.5 = 65535,
Of course, 65535 = $ FFFF = $1111 1111 1111 1111,
and, 65536 = $1 0000 = $0001 0000 0000 0000 0000
(I usually separate out the binary into hex digits for readability.)
The blog entry seems convinced that the problem is in floating point conversion. I find myself wondering if the programmers simply have a .Word 16-bit value and don't realize the significance of these numbers.
I do not have Excel 2007 and cannot test it, but it would certainly be interesting to check numbers around 32767 and 4 billion (e.g., a .Long full of 1's).
Thanks,

— Dave"

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