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Comment Re:Dumb idea ... Lots of assumptions .... (Score 1) 698

Why are you bothering with WiFi? Most schools are by now thoroughly networked, so judicious placing of the cameras would keep the signals in the wires. At which point you've pretty much dismissed any concerns about unauthorised access to the cameras and video streams. That'll take another couple of thousand dollars off the bill, and now your major cost is likely to be men on ladders actually installing the things.

Of course, it's all insanity, and probably unconstitutional. Imagine impinging on an American's bear-given right to go around freely killing anyone and everyone they want. Next thing you know you'll be allowing people to not attend church and suffering witches to live.

Comment Re:IPv6 as a help? (Score 1) 135

So ... if I cared enough, AND I had any ISPs who did IPv6 (I'm not aware that there are any in this country, but I haven't looked), then before signing on the line, I ensure that I get a contiguous block of 128 or 256 or 1024 IPv6 addresses, to use as I like. Essentially, demand a class C or class B address (equivalent) from your ISP?

Comment Re:Be the Change You Wish to See in the World (Score 1) 438

I think that "tautology" doesn't mean what you think it means. Your three part list doesn't seem in the least tautologous to me, for example, because it doesn't even cover a continuum, let alone all possible cases in a continuum. What is your attitude to things that you cannot change, but someone else can (say, that girl who completely ignores you, no matter what you do to gain her attention ; you can't change that, but she can)? Or the things that you cannot change, and no-one else can (you're not going to get a suntan from Sirius A). Are you going to change the voting system in your country to one-man, one vote (with you being the one man, and you having the one vote)?

Comment Hint to submitters : (Score 1) 176

DEFINE your terms, if you're not really, really really sure that they're generally understood.

What is a "hipster" ; I see the word used about every couple of months, and I've always taken it to refer to a low slung type of jeans, though whether they're on men, women, or androgynes has never been clear. And so what a "hipster effect" I guess would be what we call "builders cleavage". In America, it may be called "butt cleavage" - I heard the term occasionally back in the 1980s.

Comment Re:Science fiction comes to life, again (Score 1) 176

Crazy apocalyptic Xtian? And you think that is incredible? America is pretty much the world source of supply for that bunch of nut-jobs.

OK - the Philippines produce some too, nailing themselves to crosses and that sort of stunt - but they're an American partly-devolved colony, which may be their excuse.

Comment Re:Mains (Score 1) 141

it seems to imply there was / is 'secondary' or 'auxilliary' wiring.

There was. It wasn't at all uncommon to have things like door bells (and servant's bells - I've excavated the wiring from the walls in the former servant's level) to be powered from a battery system.

Also, with the analogue telephone system, that has a low DC voltage on it, from batteries/ UPS in the exchange. So that was another powered wiring system in some houses. Actually, you should still be able to run a ringer off the telephone line, and dial out using connect-disconnect pulses on the line. I used to be able to dial with the handset hook only, but haven't practised it for years.

Comment Re:I want pics. (Score 1) 48

I don't think that they've got sufficiently fast lenses to capture transient atmospheric events like this.

Likely the evidence comes from radio observation of the echoes from the impacts i nthe upper atmosphere. That's a popular rate measure on Earth too, because it doesn't depend on (absence of) sunlight, cloud cover, etc.

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