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A couple things come to mind. For one, this is our last issue of "Angel" the ongoing hitting this week, but there's still one more issue of "Spike" which ties directly into Spike's reappearance in "Buffy." That hits next week, and then the week after is "Angel Yearbook" which is our final note with all these characters in the Whedonverse. I do a little two-page story that's essentially a goodbye and thank you to everybody. And what I'd leave you with here is just a huge appreciation for the fan base. These are a lot of people who haven't read comics regularly, and they are going to the shop every week and talking on message boards. That kind of passion and loyalty is really hard to get, and it's something you want to live up to. As we've done "Angel" for the last six years, the best I can hope for is that people are sad it's going away. I know fans will follow the characters to Dark Horse and their stories will continue, but the fact that there are a lot of people who have said they'll have a really hard time going on after us speaks a lot to their passion and loyalty for what we were doing. That's hugely appreciated on our part and made this really fun to do.

Ice Energy has a novel solution for the electricity challenges of the 21st century: Make Popsicles. Put another way, the company wants to freeze water at night in refrigerator-like boxes adjacent to commercial air conditioners and then thaw it during the day, when power demand is highest. This would theoretically allow AC-hungry commercial buildings in warm climates to cut energy use during heat waves, by shutting air conditioners down while still providing cool air to buildings from melting ice. After seven years of development and testing, the Windsor, Colo.-based company signed an agreement recently with the Southern California Public Power Authority here to deploy some 6,000 Popsicle-making units at 1,500 locations in the utility's service territory around Los Angeles. Ice Energy says the units, called Ice Bears, will lead to a 30 percent fuel reduction for the utility through avoided use of so-called peaker generation plants, which are only turned on when demand is highest.

Tiny semiconductor dots could lead to a new type of circuit based on magnetism rather than current flow. At least that’s the hope of researchers who’ve made the dots and are hoping to build them into a workable device. ”We want to make it into a so-called nonvolatile transistor,” says Kang Wang, head of the Device Research Laboratory at the University of California, Los Angeles. Such a ”spintronic” transistor would retain its logic state in the absence of current and require less power to switch a bit, reducing the electrical power required by a computer chip by as much as 99 percent. Wang’s research, supported in part by Intel, was published in March in the online version of Nature Materials. Where electronic transistors rely on the presence or absence of current to register the ones and zeros of digital logic, spintronic transistors depend on ”spin,” a quantum characteristic of the electron. Picture the electron as a rotating globe. When the north pole is pointing upward, that’s spin up; when pointing the other way, it’s spin down. When the spins of most electrons are aligned, the material is magnetic. When their spins are random, the material isn’t. An applied current can align or randomize the spins, allowing for spin-based switches.