Why do circuit breakers go up for on and down for off?

Feb 11, 2023 Last reply: 2 years ago 1839 Replies

911 can be a problem on a PBX with "dial 9 for an outside line". People dial 9, then 1 to start a Long Distance call, somehow hit a second 1 and there you go

Also police get "butt-dialed" 911 calls all the time from users who don't lock their keypads

Back when we used mobile phones with buttons on the front, my company phone allowed you to lock the keypad by pressing * and # together - but some complete idiot decided that having the phone locked and unable to dial 999 was a safety risk, so holding 9 caused it to call the emergency services ... and sitting and keeping the 9 pressed was far more likely than dialling 999 and pressing green, while it was in your pocket!

He did actually but gave up on cats.

Ask the cat in here that now calls itself Animal,

You need two of them to get *dual* tone. ;-)

Seriously, a purr may be an echolocation frequency chirp.

Never heard of chirps? It's a mathematical transform of an impulse, but doesn't need the big peak power. Big radars do it so they don't ionize the air near the antenna.

Most critters, humans included, use some form of echolocation.

Look it up. It's interesting.

Touching herself where?

And how did touch remind her?

0 and 1 are a billion times easier than left and right, that guy was a moron. Does he get mixed up between yes and no aswell?

Your dad has an excuse, others do not.

It's blindingly obvious if you're right handed, since the words right and write are so similar.

It's far easier to do what I do. Port is a shorter word than starboard, left is a shorter word than right. So I've stored them in the same place in my memory.

As for bow and stern, stern means nothing to me (apart from someone who's angry), but we all know what a bow-wave is.

I hate it when a garage says "your offside front tyre needs changing". What?!? Now I have to picture a car parked on the side of the road you'd drive on, and work out which side would be furthest from the kerb. Left and right are so much easier.

When I say this, I often get the monumentally stupid response "but are you facing the car or not?" FFS, the CAR'S left and right!

I can beleive Americans being that thick.

We should have got rid of all these silly languages by now.

Only if you're blick.

Presumably *especially* blind people, because without sight they need to develop other ways of detecting the world around them. I've seen videos of blind people who can describe their surroundings (even places they've never been to before) almost as if they are seeing them.

I've never heard of a sighted person who has mastered chirping and echo-location, but then there's no point if there are easier ways of seeing what's nearby.

Humans can make pretty good clicks too. A click is good for short-range location. I wonder if a cat can click.

The wiki article says that sighted people can learn to echolocate pretty well.

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He was epileptic and OD'd on one of his drugs and died.

He did manage to get our first instant-start PLL to work, on a one-time-programmable Actel FPGA.

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I used to pause with that one but it has just dawned on me that I never do anymore for some reason.

I never have to think about that one.

Weird. I did realise that some can do surprisingly well, but didnt realise that they could do that.

Me neither.

Never noticed one doing anything like that.

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