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Comment: Re:lot's of big business have in house apps or old (Score 2) 266

by AJWM (#38558350) Attached to: The Un-Internet and War On General Purpose Computers

Sure, and they'd be, well maybe not happy, but willing to jump through the licensing hoops to allow such to run on those locked-down systems, or to purchase unlocked hardware.

Options that might not be available (or be prohibitively expensive, or require an inordinate amount of paperwork) to Joe Public.

IOW, never rely on big business to defend your freedoms for you. It turns out that businesses have freedoms that individuals don't.

Comment: Re:This is being whitewashed from the white house (Score 1) 197

by AJWM (#38336906) Attached to: LightSquared Disrupts 75% of GPS Connections In Government Test

GPS disruptions will likely cause some not-so-nice feedback from the FCC and FAA, among other groups.

Perhaps they'll piss off the DOD enough that the military will decide to use a few (appropriately frequency-modified) AGM-88 HARMs to take out the transmitters. ;)

Comment: GEM (Score 1) 104

by AJWM (#37915910) Attached to: Hobby Inspired Electric Multicopter Makes Manned Flight

In the video this thing never got out of ground effect -- although it did hover high in its ground effect -- so it may be more of a GEM (ground effect machine, aka hovercraft with no skirt) than a helicopter. Still cool, but of more-limited utility.

The mounting system for the motors and props seemed a bit funky. It's not clear what's holding the props onto the shafts, and the motors are bolted to the top of the airframe. Instinctively I'd prefer things the other way around, so that the forces are trying to squeeze it together rather than pull it apart, but if they've done the math and allow plenty of margin, it should be ok. (I figure each prop/motor shaft has got something like 16-20 pounds force pulling on it.)

As far as putting the CG above or below the plane of the rotors, it doesn't matter much -- the rotor plane is well spread out, and you get a gyro effect helping you. The Hiller VZ-1 Pawnee, for example, had the pilot standing above a single ducted fan (actually, two contra-rotating rotors in the single duct). That never got much out of ground effect either.

If God is perfect, why did He create discontinuous functions?

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