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Comment Re:Too good to be true. (Score 1) 203

True, but these guys are in Colorado. We get maybe a dozen cloudy or hazy days a year. And it's a semi-desert, no muggy days.

Yeah, it might not work so well in the Mississippi valley region.

OTOH, if they're shifting to a frequency of infrared not absorbed by H2O, it might not care about puny water vapour.

Comment Re:Tell us, Einstein, what is Rust written in? (Score 3, Insightful) 236

Uh, nope.

From WIkipedia:

The language grew out of a personal project by Mozilla employee Graydon Hoare, who stated that the project was possibly named after the rust family of fungi.[11] Mozilla began sponsoring the project in 2009[10] and announced it in 2010.[12] The same year, work shifted from the initial compiler (written in OCaml) to the self-hosting compiler written in Rust.[13] Known as rustc, it successfully compiled itself in 2011.[14] rustc uses LLVM as its back end.

(emphasis added)

However, I'll grant that LLVM is written in C++.

Comment Re:Stop getting bullet theory from movies. (Score 2) 175

Two telephone books (do they even print those anymore?) will (just) stop a 9mm. That's FMJ -- and a reasonably large metropolitan area telephone book. Even a .22 LR will penetrate a couple of inches.

Military rifle ammo won't stop for much short of a couple of railroad ties. (The old standard for 7.62mm NATO and similar was that it had to penetrate a steel helmet at 1000 yards. Modern 5.56mm (.223) stuff is a little wimpier -- but will still easily go through a car door at close range.)

Comment Re:Mass Impersonation (Score 2) 122

You might want to read up on how aircraft navigated before GPS (and still do, to some extent). In addition to ATC beacons, RDF (radio direction finding) off of commercial AM broadcasting stations was and is a thing. Triangulating from two isn't that hard for a human, it's a trivial task for a computer. Good luck overriding the signals from a few multi-kilowatt commercial broadcast towers.

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