Tablet UML News


News and commentary (and whatever else catches my eye)
from Martin L. Shoemaker, author of Tablet UML
and UML and Tablet PC instructor for The Richard Hale Shaw Group

Saturday, November 19, 2005

In Kansas?!?!?!?
So in order to keep my flight costs down (long story), I was stranded in Wichita through Sunday after my talk at Wichita Developers .NET. So I turned to 360Wichita for things to do; and what I found was the Cosmosphere in Hutchinson, Kansas: one of the finest space museums I've ever seen.

In Kansas?!?!?!?

Well, at least they have a sense of humor about it. Rather than be offended by that question, they actually printed up a small handout called "Why Hutch?" In it, they explain how Patricia Brooks Carey (a local heiress) had a passion for astronomy and organized local volunteers to build a planetarium in the Poultry Building on the Kansas State Fairgrounds. Later, they added some exhibits; and then fortunate timing led to a liaison with the Smithsonian, and thus to a full-fledged museum showcasing some major artifacts from the Apollo era and more. And then later still, they acquired a large number of artifacts from the Soviet programs as well. Almost half a world away from the Baikonur Cosmodrome, the Cosmosphere has one of the largest collections of Soviet space hardware anywhere. As the handout wraps up:

"It all goes to show, with vision, timing and a chicken coop, anything is possible. You can even build a space museum in Kansas."

Since I didn't know I would be sightseeing on this trip, I didn't bring the camera. The best I could do is the camera in my iPaq; and I'm still learning how to use that without a lot of blurring. So the shots I got weren't as good as I would've liked. What you see below are the best ones.

As you approach the building (it's not in the Poultry Building any more), it doesn't look much different from any typical college building:

Cosmosphere Entrance

Except, of course, for the small detail of a Redstone rocket out front:

Mercury Redstone

And then as you approach the entrance, you see a bronze statue of Gene Cernan, last man on the Moon (to date):

Gene Cernan

And then you know that there's something special here. Once inside, even before you get to the main exhibit area, you see two space probes:

Surveyor

This is a replica of the Surveyor, a probe sent to the Moon to study surface conditions in advance of the Lunar landings. On the Apollo 12 mission, Commander Pete Conrad and LM Pilot Alan Bean landed within a short walk of the real Surveyor. They took samples from it to help study how the metal had been affected by years on the Lunar surface. (I wish I had a better picture, but this was the best I got. Gotta learn to hold the iPaq still long enough for it to autofocus. No quick snaps with the iPaq!)

Viking

This is a replica of the Viking, a probe sent to Mars. No one has visited it for samples. Yet.

They also had two rocket engines:

H-1

These are the H-1 (top) and the RL-10 (bottom). Both were used on various pre-Apollo rockets, though I can't recall which ones.

RL-10

But that was all in the lobby area. From there, I descended the stairs to the main exhibit area. The two most interesting things about the Cosmosphere are that the exhibits are mostly underground, so space is limited; and yet they use that limited space very effectively, organizing the exhibits by themes and eras over time. Most historical museums do this to some extent; but I thought the Cosmosphere did an excellent job of this. Their use of color and space gave a definite feeling of transition as I walked from one era to another. Places like the U.S. Space and Rocket Center may have more artifacts (after all, it's hard to top a Saturn V); but the Cosmosphere presents a better historical experience. Unfortunately, that experience would be hard to capture even with the best camera. It's not something you can easily capture in a snapshot. You have to actually walk through it to get the effect.

One way in which their historical perspective is more extensive is in their coverage of the German rocket program. The Space and Rocket Center doesn't ignore this history, by any means; but perhaps because of local sensibilities (von Braun and his German team settled in the Huntsville area, and many of their families can still be found there today), it's treated relatively briefly. The Cosmosphere has a lot of detail on the V-2 program, including this exhibit:

V-2 Nose-on

V-2 and Slave Labor

The plaque tells how over 10,000 slave laborers died on the V-2 program — more than double the number of people killed by the rocket attacks. The Cosmosphere exhibit makes very clear how evil the Nazi regime was. It makes you think how important it is that we never let that happen again.

Here's another view of a V-2:

V-2

Next, they showed artifacts and information from the earliest days of the space race, days that were dominated by Soviet launches:

Sputnik

This somewhat fuzzy image is a replica of Sputnik, the first artificial satellite in orbit. The exhibit tells of von Braun's frustration at the Soviets' success, because he felt the American program was ready to launch sooner. He felt that all we lacked was vision and nerve; but he wasn't calling all of the shots.

Laika

This is a cutaway model of the Soviet capsule that launched Laika, first dog in space — before we had yet launched a single satellite. Actually, Laika was the first living creature of any kind in space, and was launched to help the Soviets measure the effects of launch and weightlessness on a living creature. (Sadly, they had no recovery mechanism at that time, so Laika's life was sacrificed in the experiment.)

So while the Soviets were launching a satellite and then a capsule with a live animal, the best we could do was this:

Vanguard

That's a replica of the Vanguard, a grapefruit sized satellite with short little communication antennae. By contrast, the Sputnik was well larger than a basketball, and its antennae were more than eight feet long. Yet even with such a small ambition, we failed: the Vanguard's launch vehicle blew up just after liftoff, and the satellite was lost.

But weren't completely without successes in that era. While we weren't making much headway in the launch area, we were making great strides in propulsion, as these exhibits showed:

X-1 Rocket Plane

This is one of the Bell X-1 Rocket Planes, such as Chuck Yeager flew when he broke the sound barrier for the first time. (Another test pilot from the X-1 program would go on to some acclaim, a young man named Neil Armstrong.)

Rocket Sled

This is a rocket sled, used for ground-based testing of rocket engines and also for tests of how humans could stand up to high acceleration.

Yet despite these successes, the big game in the Cold War was in space; and we were losing there. One reason was the RD-107 or "Red Thunder" rocket engines:

Red Thunder

These were the workhorses of the early Soviet launches; and at the time, we had nothing to match them. These were used for many purposes, including launching the first manned probe, the Voskod:

Voskod

The Cosmosphere personified the space race with statues of two men:

Nikita Krushchev

This is Nikita Krushchev, the Soviet Premier who boasted, "We will bury you. Our rockets could hit a fly over the United States."

John F. Kennedy

And this is President John F. Kennedy, the man who decided, "That's not gonna happen." Or to quote him exactly:


We choose to go to the moon. We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too. It is for these reasons that I regard the decision last year to shift our efforts in space from low to high gear as among the most important decisions that will be made during my incumbency in the Office of the Presidency.


And through his inspiration, we accepted the challenge, we didn't postpone it, and we won. And step one of that success was Project Mercury:

Atlas Engine and Sphere

This is an engne and a fuel sphere from the Mercury Atlas, the vessel that replaced the Redstone (above) for Project Mercury. The Redstone was used for sub-orbital flights; but when it came time to launch John Glenn to become the first American in orbit, it was the Atlas that did the job. (I have a photo of a Mercury capsule replica from the Cosmosphere, but it's too blurry to show here.)

Project Mercury got Americans to orbit; but it was on Project Gemini that we launched teams of two, with a plan to practice and master vital skills for the Lunar missions: rendezvous, docking, orbital navigation, and space walks. And for its Project Gemini exhibits, the Cosmosphere pulls out all the stops. Welcome to Launch Complex 19:

Launch Complex 19

This is an actual Titan launch facility, transplanted to the Cosmosphere. When you walk into it (or actually out to it, since it's outside, you're transported back in time and space to an actual Gemini Titan launch. Hidden speakers play back the actual recorded sounds from the launch prep, so you're immediately met with the rumble of engines and systems coming on line. And then you look up:

Gemini Straight Up

Gemini Titan

Gemini Top

Gemini Middle

Gemini Base

And here's a close-up of the engines:

Gemini Titan Engines

And then, if you're patient, and sit through all the holds and the final countdown, the launch itself rumbles over you. It's all realistic enough that you can imagine the flames erupting around you. That's not a good image for the faint of heart!

Back inside, I got a rather blurry photo of a Gemini capsule:

Gemini

And after Gemini, of course, came Apollo. But I'll save those photos for a later post. I'm off to visit my aunt and uncle!

Tuesday, November 15, 2005

Two more photos from Huntsville...
...just for my brother Joe, the tire man:

Space Shuttle tire

Somehow I expected the Shuttle to have larger tires.

Tire Patch

That patch doesn't make me feel all that safe. (The tire looks like a Goodrich. I wonder if it's in Joe's catalog...)
A Tale of Two Vessels
This is the tale of two vessels I visited on my recent trips to Boston and Huntsville.

This is the U.S.S. Constitution, a.k.a. "Old Ironsides", the world's oldest commissioned warship still in service and still afloat:

U.S.S. Constitution, a.k.a.

(The H.M.S. Victory is a fine ship with a glorious history, and is both older and still commissioned; but as the U.S. Navy is fond of pointing out, the Victory is "afloat" in concrete.)

This is not really a vessel at all:

Saturn V Monument

Rather, it's a full-sized replica of the Saturn V, commissioned by the Alabama Space Science Exhibit Commission and unveiled on July 17, 1999. (Bonus points if you can tell me why that particular date.) It almost has to be a replica, because all of the vessels in this line were one-shots, and the pieces have mostly either burned up on reentry or sunk beneath the waves. Still, an actual Saturn V (one which never flew) is shown here:

Saturn V on its side

Both can be seen at the U.S. Space and Rocket Center. (Actually, that photo of the real Saturn V is from my trip last year. So sue me. This year, the Saturn V is under restoration, and you can't get close enough for that angle.)

The motive power for the U.S.S. Constitution is hinted at here:

Rigging

That's a shot of some of the rigging of the ship. When under way, some number of sails would be hung from those lines: more sails to catch more wind for more speed; fewer sails when scouting and otherwise traveling at a more leisurely pace, or when too-strong winds might make the sails a risk. Under full sail with the right winds, she could make 13 knots, or nearly 15 mph.

The motive power for the Saturn V was a little bit more complex. It starts with the F-1 engines:

F-1 Engine

That's just one of them. The Saturn V had five of those monsters in its first stage. If you stand next to it, you feel tiny; but that's hard to tell from a photo. So to give you a sense of scale, the folks at the Space and Rocket Center have helpfully placed picnic tables under the monument:

Picnic Tables under the Saturn V monument

Those five F-1s got the Saturn V off the ground, and burned for 150 seconds. That got the vessel up to around 5,300 mph, and a height of nearly 38 miles. Then the first stage would drop off, and five J-2 engines would kick in:

J-2 Engine

A J-2 is pretty big when you first see it; but by comparison to the F-1, it's pretty tiny.

Those five J-2s would burn for 360 seconds, and then the second stage would drop off. That got the vessel up to around 15,300 mph, and a height of nearly 115 miles.

The third stage had a single J-2 engine, which would burn twice, for a total of 500 seconds. By the end of the second burn (also known as TLI, or Trans Lunar Injection), the remainder of the vessel would be traveling over 22,300 mph — fast enough to escape Earth's gravitational pull. After the Command and Service Module (CSM) docked with the Lunar Module (LM, but sometimes pronounced "lem"), the third stage would drop off. That left the CSM and LM free to go to the Moon. I didn't get any shots of a full CSM (or even a simulator); but here's the actual Apollo 16 Command Module, without the Service Module (of course):

Apollo 16 Command Module

The CSM had it's own engine, the Service Propulsion System, or SPS (not pictured here); but the main motive power for the SPS was gravity. As the CSM's velocity carried it away from Earth, the Moon's gravity grew stronger and eventually dominant; and so a primary use of the SPS was actually as a brake, slowing the SPS and the LM down enough to attain a stable Lunar orbit. Later, the SPS was used for Trans Earth Injection, breaking free from the Moon's much weaker gravity and sending the CSM back toward Earth.

When the LM cut loose from the CSM and descended to the Moon, it did so on this Descent Stage Engine:

Descent Stage Engine

This one was actually pretty small, maybe half my height. Of course, it was supporting a tiny fraction of the Saturn V's mass against one-sixth the gravity, so it didn't need to be nearly as large as an F-1.

Before the Apollo crews reached the Moon, some scientists speculated that the Lunar surface might be deep in dust and might trap a vessel that landed there. In hindsight, it seems like we had plenty of probe evidence and other observations to counter this theory, but it was a valid safety concern. And no one knew quite how rough the terrain might be at a landing site. There was some fear that leaving the Moon might be a lot harder than landing, because there might be no stable ground from which to launch. So in what I've always found to be the most clever engineering solution of the whole LM program, the engineers decided to have the crew bring their own launch platform with them. The LM was designed in two stages: a descent stage which would land and plant its feet on the surface; and then an ascent stage which would use the descent stage itself as a stable launch platform. Even if the descent stage landed in deep dust or was somehow damaged during landing, it would still support a launch of the ascent stage in all but the most catastrophic scenarios. I don't have details on the ascent stage engine, but it was the last major element of motive power for the Apollo missions.

I haven't found any reference for the top speed of the CSM; but it was at least 1,500 times faster than the U.S.S. Constitution. The longest voyage possible for the U.S.S. Constitution was a circumnavigation of the Earth, or something more than 25,000 miles. An Apollo crew on a Lunar mission traveled much more than ten times that far:

Return trip: TLI to Splashdown

This is a small glimpse of the crew quarters of the U.S.S. Constitution:

Hammocks

Officers had it slightly better, but not much. The captain fared better still, because Rank Hath Its Privileges. 450 officers, enlisted men, Marines, and ship's boys slept in shifts in these cramped quarters. (The ship's boys were given education in academic matters and shipboard duties and a decent stipend for the day, in exchange for some vital combat duties: they were the only ones small enough to crawl into the cramped powder lockers and cannon ball stores and haul out the powder and ammunition. Some very brave soldiers won some very risky battles on the U.S.S. Constitution; and every time they fired a cannon at an enemy ship, they were able to do so because some ship's boy was on the job supporting the cannon crew.)

This is a glimpse of the "crew quarters" in the Apollo CSM:

Command Module Interior

It looks like cramped was still the rule of the day; and unlike the U.S.S. Constitution, Rank Had No Privileges when it came to living space in a CSM. (Actually, I believe this photo is from a Command Module simulator, not from the real Apollo 16 Command Module. The real thing is behind plexiglas, and all my photos of it have flash reflections right in the most inconvenient places.)

While I don't have any pictures of them, the U.S.S. Constitution had ship's boats for going ashore when port facilities weren't available.

The CSM had a ship's boat of sorts as well, i.e., the LM itself:

Lunar Module

This was a two-man landing craft, and one of the most challenging flying experiences any aviator could face. The story of the design and construction of this craft is an inspiration to engineers everywhere, and is my favorite episode of From the Earth to the Moon. I'll never be an astronaut, and I can't really see myself as one. A space tourist or mission specialist is as close as I can imagine (and I'm not holding my breath). But I could see myself and my colleagues in every scene of this story of engineers facing near insurmountable challenges on nearly impossible deadlines. When the lead engineer says goodbye to his baby and knows it's never coming back, I choked up. (And keep an eye on the rubber balls for one of the nicest little bits of visual shorthand I've ever seen in a film.)

And on later missions, the "landing craft" itself carried a "landing craft" of sorts, the Lunar Rover:

Lunar Rover

These battery-powered vehicles could fold up and fit inside the cargo area of the LM. With a top speed of 8 mph, the rovers greatly extended the territory that astronauts could explore.

Here Seaman Rob Shaughnessy of Bellows Falls, Vermont tells us about grog:

Seaman Shaughnessy and the grog cask

(Seaman Shaughnessy was a most excellent tour guide, and I enjoyed his presentation immensely. He should have a fine career in public speaking if he ever decides to do so; but since he was both a fireman and an EMT before joining the U.S. Navy, I suspect he prefers a career with a little more action.) In the days of the tall ships, sailors were issued a small daily ration of rum (or other alcohol, but rum was most common). This helped boost morale and helped the men to sleep, as well as providing them with at least something safe to drink. (More on that in a moment.) But the ration was small, not enough to make a healthy, active man drunk; and so sailors got inventive, and hoarded their rations to the weekend. A week's ration was enough to get a man good and drunk; and while that may have pleased the men, it highly displeased the captain. A crew of drunk (or hung over) sailors makes a lousy fighting force (Duelist jokes notwithstanding). So our Navy borrowed a trick from the Royal Navy: the recipe for grog. This was a mixture of rum, lime juice (which also provided vitamin C, and thus helped stave off scurvy), and water. It was acceptable to drink on the day it was served; but if you hoarded it for a week, it went bad, and would make you quite ill. And so the ship's surgeon (who was also the dentist and the cook) was on orders to report any man who showed up with signs of grog-sickness, particularly on the weekends, so that the man could get extra duty assignments.

And why did the grog go bad? Well, I'm sure that the lime juice started to go a bit bad over a week; but for the real answer, Seaman Shaughnessy pointed us to the scuttlebutt:

Scuttlebutt

This was the water cask; and it contained what the crew called "lively water". This was long before water purification, remember; so when the ship put in at some river mouth to refill its stores of water, the "fresh" water most assuredly had microorganisms and more living in it. And every day, the cook would go down to the stores and fill the scuttlebutt and haul it up to the gun deck. The sediments would have largely settled before the scuttlebutt was filled; but microorganisms and algae and even small fish and polliwogs and whatnot would still get into it. And by the time those organisms had had a week to grow in a nice nutrient-rich bottle of grog, well, they'd be just ripe for making a man ill.

Another thing to know about the scuttlebutt is that it was the only place on deck where the enlisted men were allowed to talk. The main deck was the domain of the captain and his officers: no one spoke except on official duties, so that the captain's orders could be more clearly heard and conveyed. And the berthing deck was always occupied by sleeping men (they had to sleep in shifts, remember) who would not appreciate a lot of idle conversation. So the scuttlebutt was the place the men gathered to talk and to gossip; and thus the term scuttlebutt entered our slang as a term for gossip. To this day, drinking fountains in the Navy are still referred to as scuttlebutts.

The final bit of dining lore that Seaman Shaughnessy shared regarded the harness cask:

Harness Cask

The meat in the stores was kept heavily salted to preserve it; so to render it edible, each day the cook climbed down into the stores, carved off enough for the day, and put it in "fresh" water in the harness cask so that much of the salt could be soaked out of it. The resulting meat, though, was still very salty, and very tough. The sailors liked to claim it was horse meat, and to try to convince new crewmen that if they kicked over the harness cask, a horsehead would spill out, still wearing its harness.

The Space and Rocket Center did have exhibits of Apollo food, but I forgot to get a photo. Still, griping about the food is something of a military tradition, so I'm sure the Apollo astronauts did plenty of that. And the story of John Young's orange juice farts is legendary.

Make no mistake about the U.S.S. Constitution: she was a warship, pure and simple. Here's a view of some of her cannons:

Cannons

There were 54 in all: 32 24 pounders, 20 32 pounders, and 2 24 pounder bow chasers. When the 32 pounders fire, they fly backward with the equivalent kinetic energy of an SUV going 30 mph. Then they're caught by the massive ropes, and they bounce around so much that the maker's crests forged into the tops of the barrels are actually imprinted into the beams above the guns. The larger guns were actually given to the U.S.A. by the British, in order to aid the Constitution's original mission: fighting piracy on the high seas. But they were given with a condition: that these guns never be used against British vessels or interests. And so, when the War of 1812 broke out, the Constitution honored that agreement, and fought only with her smaller guns. Despite that, she never lost an engagement, and won over 30 battles, including an amazing victory against superior odds in her battle with the Cyane and the Levant. And though it's habit to speak of these as the ship's battles, of course most credit must go to the fine crew, including the 312 men who died defending freedom aboard her decks. Still, the ship herself deserves some credit, along with her designer, Joshua Humphreys. The ship design was very advanced for her time, with great structural strength. And the hull was an amazing innovation for its day: in a time where double walls were common (with one wall running vertical and the other horizontal, so they could buttress each other, Mr. Humphreys designed a triple hull, with both inner and outer walls running horizontal, while the middle wall ran vertical. This by itself added more structural support; but beyond that, the middle layer was made of Southern live oak, a tree at the time found only in Georgia, USA, and so dense that it actually won't float by itself. This combination of reinforced design, triple-walled hull, and live oak was such that during her battle with H.M.S. Guerriere, British cannon shots actually bounced off the sides. One observer shouted, "Huzzah! Her sides are made of iron!", thus giving her her nickname.

While no actual declared war was involved with the Saturn V, the race to the Moon was actually one front in the Cold War with the now-defunct Soviet Union. Still, she bore no weapons, and carried the message, "We came in peace, for all mankind." Despite that global message, though, both vessels proudly declared what country gave them birth:

Flag flies above the U.S.S. Constitution

Flag flies at a recreation of Tranquility Base

It makes me humble to think that these two vessels, so different in almost every respect and yet so similar in spirit, are part of our heritage. And a chance to see both in three days was not something I'll soon forget.

Monday, November 14, 2005

Where've you been, Martin?
All over the place! And it has kept me hopping. Plus I've been in a string of low-speed-connection zones that made posting more difficult, interspersed with a string of low-speed-and-intermittent-connection zones.

But now I'm on the T-Mobile HotSpot for what Microsoft tells me will be a minimum of a 4.5 hour download. That's assuming no one else comes into Kinko's and starts using the connection. Right now, the Kinko's staff tells me I have a whole T1 line to myself; and it's still a 4.5 hour download.

So I may do a few catch-up posts here (while recognizing that each post delays my download a few seconds).

Tuesday, November 1, 2005

The quantum probability waveform collapses...
...and we know where the CX200X is:

Gateway Box

Gateway Box Open

CX200X

Right in my house! Around 12:30, the dogs started their "we really mean it this time, somebody's here" barking. I went to the door and thought, "Hey, I wonder what FedEx is delivering? After all, Gateway sent me a UPS tracking number." Then I saw the cow box, and I new the CX200X was here.

The confusion appears to be because Gateway sent the order in two boxes: the spare battery is coming via UPS, while the system came via FedEx. Go figure. And for whatever reason, they didn't give me the FedEx link. So while I've been carefully watching the battery's approach (due tomorrow), the system box snuck in through a flanking maneuver.

Of course, it's easy to be fooled by the battery: that one package weighs three pounds by itself. There's a lot of good things about the CX200X, but it's not for people who want a light-weight machine!
Outlook hazy. Try later.
So after two weeks in the "Order Processing" state, my Gateway CX200X order skipped the whole "In Production" state, and jumped straight to "Shipping", according to the Gateway site. Yet the ETA is still listed as 11/9.

A call to Gateway's automated status line says that the system was produced on 10/29 and will arrive in 3 to 5 business days.

The UPS Web site reports that the order left Gateway yesterday at 4:06 p.m. and reached Nashville at 1:08 a.m. this morning. That's roughly a 9 hour drive from Nashville to my house, straight through. Of course, it won't go straight through, but will stop at various UPS transit stops along the way. At a minimum, I expect two more stops before it gets here. There's an outside chance it could get here today. There's a very good chance it could get here tomorrow, 11/2.

And if it doesn't get here until Thursday, I'll be on the road to Boston and Huntsville, and won't get home until... 11/9.

UPDATE: Left Nashville at 3:23 a.m.