Forgot your password?
typodupeerror

Comment: how about secure transmission (Score 1) 115

by cellocgw (#47523331) Attached to: 'Optical Fiber' Made Out of Thin Air

Granted, I'm just another /.-er who never RTFAs, but I do have some experience w/ FO comms and free-air transmitters (of one wavelength or another).

So consider: the channeling lasers may disperse, but they carry no information beyond the existence of the channel and possibly the source and destination. The transmitted data packets do not disperse, so what you've got is the equivalent of a phased-array transmitter with zero sidelobes.

Networking

How the Internet of Things Could Aid Disaster Response 59

Posted by samzenpus
from the when-the-microwave-calls dept.
jfruh writes While the Internet has made communications easier, that ease had made us very dependent on the Internet for communications — and, when disaster strikes, power and infrastructure outages tend to shut down those communications networks when we need them most. But now researchers are examining how the so-called "Internet of Things" — the proliferating array of Internet-communicating devices in our lives — can transmit emergency messages via ad-hoc networks even when the Internet backbone in a region is inoperable.

Comment: Re: Lol (Score 1) 272

A few years back, before Obama, one of my black friends said when we have the first black president they are gonna paint the White House black, and call it the "Black House."

In fact, the political comedian Dick Gregory said that about his own satirical run for president back around 1968 or so. When I'm president (c'mon, you guys gotta start campaigning for me!), I think I'll do the exterior in Jackson Pollock.

Comment: which 6E5 titles? (Score 1) 87

by cellocgw (#47467831) Attached to: Amazon Is Testing a $10-Per-Month Ebook Service

It's kinda like cable tv: 500 channels, of which 450 are QVC, 40 are rerun channels, and 10 are worth watching.

Similarly, gutenberg.org plus its "affiliates" claim 100k books, but rather a lot of them are of extremely limited interest to anyone other than historians.

Amazon has roughly 33 million listings; even allowing for overlap between kindle, paperback, and hardcover (and audio), 600k is a rather small fraction of what's out there.

Comment: Re:He cant or wont? (Score 2) 382

by cellocgw (#47458503) Attached to: White House Punts On Petition To Allow Tesla Direct Sales

Meanwhile,today, if you can afford a $90,000 car, I doubt there are any real impediments to your making that purchase.

That's all very nice and snarky, but Tesla's got a Model E in design with a target sticker price of around $30k US. Wouldn't it be nice to fix the problem now, so in a couple years we don't have to order our Tesla-E via Amazon Prime?

Comment: Re:Military Applications (Score 2) 42

The military application is that it is rumoured to be able to detect stealth aircraft.

No rumor that. Dunno about cell towers, but it was shown pretty conclusively in the '90s that the "hole in the sky" caused when a stealth aircraft blocks FM radio signals can be seen. Depends of course on having a good FM sensor and a solid transmitter or two in the area.

"You know, we've won awards for this crap." -- David Letterman

Working...