Head to Popular Mechanics to see the official timeline of the crash. [Popular Mechanics]

Obviously, the X-Bomber will be much bigger, capable of delivery nuclear payloads, and more conventional bombs than the X-48B in the photo.

Really, these Pentagon people should talk with Steve Jobs. [DTI via Defense Tech]

Three percent of all the electronic components in the world become obsolete every month. When you imagine all the shit coming out of China, it's pretty staggering. The problem is actually worse for the military, which spends about $10 billion a year on keeping up obsolete electronics parts. Ironically it's because they've switched to using off-the-shelf consumer electronics for 90 percent of their components—with a much shorter service life, four years at best—rather than "military-spec" gear, which was designed to hang around for a decade or more.

IEEE Spectrum lists a couple of egregious examples: The B-2 Spirit, one of Jesus' favorite planes, started flying in 1989, and by 1996, lots of its electronic components were obsolete. And in the Navy's new sonar system, 70 percent of the parts were obsolete when they started installing it.

Finding the parts isn't just difficult, it's expensive as hell, so the cost of maintaining obsolete but very necessary wares basically keeps you from upgrading. In the NYC subway case, instead of moving to a new, modern computerized system that would probably be cheaper in the long run, the Metropolitan Transit Authority has had to focus its limited budget on maintaining the frail, antediluvian network, trapping New Yorkers into an transit system light years behind, say, Japan's. (There have been stories in the recent past about the subway's upgrades, but they have mainly been superficial.)

Not all of you depend on the subway, or fly B-2 bombers, so here's a closer to home example: Windows vs. OS X. The latter is lighter, faster and springier, because it dumped all of the Classic OS's code. A fresh start, with a transition eased by the Classic emulation scheme. Windows Vista, on the other hand, is burdened by 20 years of legacy code, code that it could be argued is essentially obsolete. So we pay the price with a bloated operating system that struggles under its own massive girth. Dumping all that dead weight for Windows 7 and starting fresh—while painful—would be the best thing Microsoft could do. But it's not that easy, or they'd have done it, obviously. Maybe. You got any better examples of painful obsolescence? [IEEE Spectrum, NYT]

Unlike other aircraft fuel efforts, like hydrogen-fueled planes or vodka with Red Bull, the synthetic fuel used in the B-1B is actually derived from natural gas using the Fischer-Tropsch process. The 50% synthetic fuel and 50% petroleum gases mixture, however, is as capable as regular fuel, feeding with ease the B-1B's four General Electric F101-GE-102 augmented turbofans and pushing the variable sweep-winged bomber at Mach 1.25 to its objective, where it can launch AGM-69A short-range nuclear missiles, drop 24 Mk84 bombs or spread a lot of good will and clean air.

According to the USAF, the fuel is still under test after trying it successfully in this B-1B and the subsonic B-52 Stratofortress. They are aiming "to have every aircraft using synthetic fuel blends by 2011," according to Maj. Don Rhymer from the Air Force Alternative Fuels Certification Office. My favorite quote, however, comes from Captain Rick Fournier, the B-1B commander:

It's great to be part of an Air Force initiative that is also helping the environment, Captain Fournier said. "Using a fuel that is cheaper and cleaner ... what could be better?"

Rick, if Senator McCarthy was still around, you would be in jail by now. Damn you hippies in the military! Damn you! [Military.com, Boeing and Wikipedia]

The B-2 Spirit follows the same ideas pioneered by John Knudsen Northrop, who founded Northrop to pursue his flying wing designs, and the Nazi Horten Ho-IX, one of the most advanced planes at its time, designed by the Horten brothers.

The Ho-IX, also called Gotha Go 229 or Ho 229, took off for the first time in 1944 and was the only plane to meet Luftwaffe's chief, frustrated transvestite and absolute nutter Hermann Göring 1000-1000-1000 performance standards: the Horten was capable of transporting 1,000 kilograms of bombs (2,200 lb) over 1,000 kilometers (620 miles) at 1,000 kilometers an hour.

Fortunately, it never reached production and most airframes were destroyed by US forces to avoid the Soviets getting their paws all over them. The U.S. VIII Corps of General Patton's Third Army captured one, however, and its low-drag, no-unnecessary surfaces live now in the B-2.

Unlike the experimental Horten and the flying wing designs that Northrop designed in the 40s (like 1948's Northrop YB-49, a jet-based variation of the 1946's YB-35 strategic bomber) the Spirit became fully operational.

The B-2 bombers are amazingly efficient: like its 20 sister vessels still in service, the Air Vehicle-12 Spirit of Kansas was capable of delivering both conventional and nuclear bombs to any target around the world in a few hours, with just one refueling. Powered by four General Electric F118-GE-100 turbofans capable of 17,300 pounds of thrust each, the aircraft can reach 410 knots (470mph) at a maximum altitude of 50,000 feet.

Another advantage of its simple design —coupled with its radar-absorbing coating, called Alternate High-Frequency Material—is that their radar profile is extremely low. Coupled with its operational altitude, this make them extremely hard to detect and shoot down. That's the reason why this crash, with no known reasons yet, is so exceptional. That and the effect of watching $1.2 billion dollars disappearing in an crater in a concrete runway.

According to the Air Force, an investigation is currently under way about why the Spirit of Kansas went to Oz at Guam. But don't worry, taxpayers, I'm sure you will get a cool 3D simulation of how it all happened from the Wizard in Chief, General Dorothy and Commander Toto, at the Pentagon. [Military.com, Ho-XI at Wikipedia, Jack Northrop at Wikipedia, Air Force — Main photo by Bobbi Garcia for the AFFTC]

Jesús Díaz: How many pieces do your models use?
Ralph Savelsberg: I don't really keep track of how many parts I use for any particular model. I can really only guess. The smaller ones (the F-15, Su-27 and E-2C) probably use between 1,500 and 2,500 parts each. I wouldn't be able to narrow it down any more precisely without taking them apart and counting. The B-1B is a lot bigger and heavier and probably uses between 6,000 and 10,000 parts.

JD: How's your typical building process?
RS: There are quite a few builders who sit down and start building. I can't quite do things like that, or perhaps it doesn't actually lend itself very well to the subject. I use pictures and plans of the aircraft. 1/72 is a fairly common scale for model aircraft and it's comparatively easy to find proper drawings on that scale. My planes are 1/36 mainly because I can simply scale them up by a factor of two relative to the scale drawings.

JD: So you use drawings first?
RS: I usually make a number of drawings (the old-fashioned way with a pencil and paper) trying to figure out how to represent the aircrafts' general outlines, such as the shape of the wings, for instance, in LEGO parts. There is only a limited range of angles available in LEGO plates, so getting the angle of the leading or trailing edge of the wings right can be tricky. I used a pythagorean triple (3,4,5) to do the tailplane on the B-1B and used a combination of different angle plates to get the wing on the E-2C right. That's the sort of thing I really have to work out on paper.

I sometimes also make drawings of specific parts of a plane, such as the nose on the E-2C or it's radar dish. I find that simply putting parts together doesn't work as well for me as visualising the shape, thinking about how to build it in LEGO and then making a few drawings before I start to build. The Su-27 was almost completely designed on paper. The F-15 was a lot simpler somehow and came together without too much preparation.

[Flickr via Brothers Brick]

It's actually called the Suicide Bomber, but that's a bit of a misnomer, really—not even one virgin (let alone 72) graced me with their pulchritudinous and, frankly, inexperienced, presence. You can attach the charm to your wall as well as dangle it from your mobile, and it costs just $10. [New Launches]