January 29, 2010

It must take a rocket scientist to figure this out

I find it absurd that today, NASA's remembrance day for those who gave their lives to further the cause of space exploration, the Interwebs are buzzing with speculation about the president pulling the plug on the Constellation Program.

He claims it will be better to turn rocket-building over to private companies.

Whom does he think built the Ares-1X? The SeaBees?

NASA directs the program, but the heavy lifting is -- and always has been -- done by private companies.

The Saturn V rockets were built by Rocketdyne. The lunar landers were built by Grumman.

Orbiters for the space shuttle program were built by Rockwell International with parts by Grumman and General Dynamics. The shuttle's external tank is made by Lockheed Martin. The solid rocket boosters have motor segments made by ATK, with avionics and final assembly by United Space Alliance, which is a partnership between Lockheed Martin and The Boeing Co.

This New York Times story says NASA is getting a budget increase over five years. But if Constellation is scrapped, it seems much of that budget increase must go to a whole new round of requests for proposals, design review meetings, and test flights.

Ares already had a successful test flight. So why are we starting over? And why does the president who came closer to nationalizing our banks than anyone since FDR want to privatize the space program? Does he not realize that the Ares was built by private companies? From NASA:

ATK Space Systems of Promontory, Utah, is the prime contractor for the first stage reusable solid rocket boosters. Jacobs Engineering in Tullahoma, Tenn., is the prime contractor for Ares I-X avionics, with Lockheed Martin of Denver, Colo., as subcontractor. Teledyne Brown Engineering of Huntsville, Ala., is the prime contractor for developing the roll control system. United Space Alliance of Houston, Texas, is the prime contractor supporting launch operations at Kennedy Space Center.

Mr. Change wants to discard the work already done by these private companies so astronauts can fly on rockets built by ... private companies. But there are only so many companies capable of building a rocket that big. Apparently it escapes him that the companies most likely to bid on a "commercial rocket" will be those already named.

That's not change. It's just a waste.

January 21, 2010

You can do without this "special" delivery

This just landed in my inbox:
The courier company was not able to deliver your parcel by your address.

Cause: Error in shipping address.
You may pickup the parcel at our post office personaly!
...The shipping label is attached to this e-mail.
Please print this label to get this package at our post office....

The message purports to be from DHL and sports a convincingly spoofed "dhl.com" e-mail address.

The attachment is called "DHL_Label_NR34791.zip," and that's the real tip-off.

Well, that and the fact that I'm not expecting anything to be delivered by anyone.

Even if I were, why would a simple shipping label be in a zip file?

It wouldn't. It would be a pdf, surely. Or I'd be instructed to log into dhl.com with my tracking number.

This attachment and others like it -- the numbers appear to be randomly generated (yes, I got 2 of them with different numbers) -- contains a Trojan that will install malware on your Windows computer. But even if you have a Mac, you should not open unexpected attachments from unverifiable sources.

For more on Bredolab, see Hoax-Slayer and Symantec.

Oh, and another tip-off? The poor grammar. "deliver your parcel by your address" should be "to your address," and there are two Ls in "personally."

January 17, 2010

Those who can't, kibitz

I had a great time Saturday working with the guys from the Phenix Design Group, who provided driving and flight simulators for Otronicon.

You may recall that last year I wrote about my pretty dismal flight record. So I found it amusing when Lynn, an Orlando Science Center staff member, asked me to work at the Cessna Skyhawk flight simulator.

She asked whether I minded doing something kind of technical. Then she laughed and said, "Well, it's all technology, so I guess you wouldn't be here if you did mind it." Which is true.

Lynn introduced me to Ron, of the Phenix Design Group, who asked whether I'm familiar with flight simulators.

"Yes," I said, "I've crashed several of them."

He was fine with that, and proceeded to show me how the HotSeat Flight Sim works. A few menus and key commands later, and I was running the show.

The HotSeat is a lightweight bucket seat mounted, as one guest discovered by laying on the floor and looking underneath, on "big gimbals." (Yes, that's the kind of guest we get at the science center, and we like it that way. Actually, I saw two people do this.) As you steer left or right, up or down, the chair tilts accordingly. The simulation is driven by a PC, with the video displayed on a large LCD TV.

Usually I gave the guests a quick overview of the controls--which button or lever does what--but only the ones they needed. So several buttons, levers and pedals went unused. To keep things simple and the line moving, Ron was running a limited simulation of an approach and landing at Orlando International Airport.

So yeah, there's me, telling other people how to land a plane.

After I'd been doing this for an hour and a half or so, I noticed that some guests would only touch the buttons I pointed out to them, while others would, at some point in their roughly two-minute approach, push every button and flip every switch to see what each one would do. I also noticed that there was a greater proportion of young people (which is to say, people younger than me) in the latter group, and a greater proportion of people older than me in the former.

First I must point out that my OSC sample is disproportionately skewed to the youth. Nevertheless, this observation is in line with one I've made at the office, where people younger than me, when trying to accomplish something new with a computer, usually start clicking through menus and dialog boxes until they get what they need. People older than me usually call me for help. It's as if they're afraid they'll break it if they push the wrong button. Although there are times, in a production environment, when a computer error could bungle things up rather badly, generally speaking, clicking the wrong button isn't a disaster.

So I began wondering whether this willingness to experiment with the controls at hand is more prevalent in those who've grown up with high-tech gadgetry. Familiarity breeding confidence. I asked my teenager, and he concurs. Young people use trial-and-error, he says, because it's often the faster way to learn something than reading the manuals.

Perhaps the techno-timid of all ages should spend more time in environments like the science center, where trial-and-error learning can be practiced without danger to life, limb, or data.

And for the record, after my volunteer shift was over and I was able to try the HotSeat for my self, I had a lovely approach but pranged on touchdown.

January 14, 2010

Throwing learning a curve

Often, when I run into an old friend, they ask how my son is, and when I tell them he’s sixteen and taller than me they gasp and recall some thing he did when he was eleven. “Can you believe it’s been that long?”

Those of us who were around when Otronicon was a new idea are having much the same reaction. The baby is growing up and into a respectable citizen.

I first wrote about Otronicon in the Jan. 27, 2006 issue of Orlando Business Journal. Dr. Brian Tonner, then president of Orlando Science Center, told me, "The purpose of Otronicon is to examine the impact of digital electronics on culture."

But even then, Otronicon was about more than video games. Orlando has long been a center for military simulation, and the Army and Marine Corps have been participants in Otronicon from the start, along with Lockheed Martin’s simulation and training division.

This year, I told OSC President JoAnn Newman, in all sincerity, that the show keeps getting better every year. It’s true.

This year, one of the new additions is medical simulation. Otronicon has touched on this topic in the past, but this year Florida Hospital for Children has put together a roomful of displays, including a trainer for the da Vinci robotic surgery system.

I was able to try out the da Vinci Surgical System this evening at the Otronicon preview event. The robot is a massive thing with multiple arms -- a mechanical Shiva. The control mechanism is a massive thing with rounded edges, gaping eye sockets and a cavern containing the joystick-like controls.

The controls are a little touchy at first, but once you get the hang of it, it’s very nimble. A tray of tiny modeling-clay cones and plastic rings sat on a table under the robotic arms. After only a minute or two -- once the company sales rep who was manning the display showed me the correct way to get my fingers into the grips -- I was able to move rings from one cone to another.

The company representative and a couple of doctors from the hospital explained that this kind of equipment allows for minimally invasive surgery, cutting recovery times by weeks and reducing or eliminating post-surgery problems.

A lady who came along after I finished wasn’t sure guests were allowed to use the machine. But I showed her how, and she gave it a go. But she accidentally pinched off the top of one of the clay cones. Her friend teased her -- “that would hurt” -- but I said, “That was an appendectomy. She meant to do that.”

Preview night is always fun. This year, more than ever. Because now, in addition to enjoying all the new things Otronicon has to offer, I can reminisce with others who’ve been around since back in the day about how far we’ve come.

Otronicon isn’t just about examining culture anymore. As Newman told the attendees tonight, at this event kids don’t just play games, they learn how games are made. “It’s not just about how we play,” she said, “it’s about how we learn.”

December 30, 2009

Blog hijack

Language Log is a terrific blog with a long list of prolific contributors. It can be a little unwieldy to follow, not only because of the number of posts but because each post is usually an in-depth article and is followed by many insightful comments.

Not so one Dec. 25 entry, in which Arnold Zwicky traces the divergent sources of a clever line by Paul Krugman (writing on politics: "No, Virginia, at this point there is no sanity clause.").

The entry itself is brief, and the comments section is abruptly truncated by Zwicky after a commenter went off-topic, attempting to move the discussion from language to politics.

Zwicky writes, in his terminal comment, writes:

I've had it repeatedly explained to me that when you open a posting to comments, the comments section then "belongs to" the commenters (who are free to take up any topic they want), not to you. I reject this idea, but hardly anyone seems to agree with me.

Well, I certainly agree with him, as do many other bloggers who moderate the comments on their sites. Unfortunately, Zwicky has decided that to obviate such a hijacking in the future, he simply won't allow any comments at all.

I do hope Zwicky reconsiders this drastic measure. It's a shame the rest of us should miss the lively discussions Language Log usually inspires just because one crank realized there's a bigger audience for his political views there than at his own blog.

December 26, 2009

An urban legend in a pear tree

A co-worker recently brought up that modern myth about the origins of the song “The Twelve Days of Christmas,” and asked whether it was for real. This is the story that says the song is a coded reference to Scripture. "Five golden rings" stands for the Pentateuch, "Four calling birds" equals four gospels, and so on.

Some claim the song originated in the 16th or 17th century, during the period when English Protestants were persecuting Catholics. “Twelve Days” is said to be a sort of catechism song for teaching the tenets of the faith to children, with the premise that Catholics couldn’t put anything in writing for fear of imprisonment, torture or hanging.

Illustration © Michele Paccione • Fotolia


This origin story, as I told my colleague, is nonsense. It apparently was made up by someone who either couldn’t be bothered to look up the truth, or didn’t care. Like the bogus story about candy canes being the letter J for Jesus, the “Scripture code” story about the “Twelve Days” song is an attempt to cram religious symbolism into a folk custom.

There are several problems with the “Scripture code” story. Chief among them is that there would be no reason to “encode” such information, because the items cited are common to both Catholic and Protestant Bibles.

Also, the things that the items in the song symbolize change from one version of the story to another. For instance, the three French hens are alternately said to represent the Trinity; the virtues of faith, hope, and charity; or the gifts of the magi.

And what good is a catechism song only sung one month out of the year?

Actually, the song most likely originated as a “memory and forfeits” game for Twelfth Night (the Epiphany, Jan. 6). The “first day of Christmas” is Dec. 26.

In a memory and forfeits game, the leader sings the first line, and the players follow along. With each round, the leader adds a new phrase, and as people mess up—as we so often to once you get into the double-digits of this song—they are “out,” until only one player remains. It is in this context that the song was first published, in the book Mirth Without Mischief, in 1780. Similar songs are recorded earlier in French.

Whether by translation or through the passage of time, some errors appear to have crept in. The “calling birds” were originally “colly birds,” colly (or coal-y) meaning black, therefore “blackbirds.” And “five golden rings” may originally have meant ring-necked pheasants, making the first seven gifts all birds.

What one’s true love was supposed to have done with 28 birds, not to mention all those people, is not known. And it’s OK to not know. Not knowing is preferable to inventing falsehoods.

December 25, 2009

I bring you good tidings...really.

The one who comes from above is above all; the one who is of the earth belongs to the earth and speaks about earthly things. The one who comes from heaven is above all. He testifies to what he has seen and heard, yet no one accepts his testimony. Whoever has accepted his testimony has certified this, that God is true. He whom God has sent speaks the words of God, for he gives the Spirit without measure. The Father loves the Son and has placed all things in his hands. Whoever believes in the Son has eternal life; whoever disobeys the Son will not see life, but must endure God's wrath.

—John 3:31-36


That's neither holly nor jolly, is it? Yet this is today's gospel reading from the Presbyterian Church USA's daily lectionary.

Many people are taking today as a vacation day. But is is a holy day? Are we stopping to consider what it meant for God to put on flesh and dwell with us? Are we accepting his testimony? Or are we performing some cultural norms out of habit, or because everyone else does?

I skipped decorating this year. Not so much as a wreath on the door. And for half a minute, I worried that my neighbors might think I'm not a Christian because there's nothing on the outside of my house to show it.

Meanwhile, around the corner, our neighbors have a yard full of inflatable decorations and more lights than Vegas. I would live in fear of such an electric bill.

What, I ask you, does an electrically lighted inflated Santa have to do with the immanence of God?

By contrast, I attended my first Christmas Eve worship service at my new church last night. I had the pleasure of sitting in front of the most tone-deaf person I have ever heard. I soon got over the little thrill of not being the worst singer in the room for once. As the saint behind me offered up "Hark, the Herald Angels Sing" with all the gusto she could muster, I thought of this Psalm, which also happens to be on the lectionary for today:
Make a joyful noise to the LORD, all the earth;
break forth into joyous song and sing praises.…
With trumpets and the sound of the horn
make a joyful noise before the King, the LORD.
Sing praises to the King of Kings. Accept His testimony. It's not holly. It's not jolly. It's holy.