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

Found mine.

Why? We speak American on the west side of the big pond. It's a mixture of English with whatever. We still have building codes and the National Electrical Code.

Green signals are a /bit/ blue I suppose. I think they use blue glass for green signals with incandescent bulbs. I've seen that with traffic signals.

When I was little I used to play with my dad's Meccano from when he was a boy. That had a single-speed motor. The frame of the motor used heavier-duty versions of the flat plates with holes in that were used elsewhere in Meccano. He kept all his parts in a big wooden box with wooden drawers with compartments: probably made by my Grandpa.

Sadly my dad lent all the Meccano to a work colleague for his son to play with, and when he came to ask for it back some year later the colleague said "Oh, I thought you'd *given* it to me, not lent it to me. When [son] grew too old for it, we took it to the tip." Grrrrrr. Old Meccano from the

Every mains valve radio had a "Gram" or "PU" socket with switching, usually combined with the waveband switch.

I don't think that would have been legal, certainly not in the UK.

Apparently Japanese traffic lights are blue although the word for "green" is used. There's some convoluted reason for using blue and for calling it green.

Why, is she asymmetrical?

As a young child, I would just pretend to write.

Don't joke. My dad is in the early stages of dementia: normally he is fine but if he gets an infection he becomes more confused. He's recovering in hospital from an infection at present. He's right-handed, but when an occupational health nurse asked him the other day "Are you left or right handed" he answered very confidently, and without a moment's thought "left-handed". But then he thought for a moment and said "No I'm not." It doesn't help that he knows my mum is left-handed: he could have been thinking of her in that split second.

I've never understood people who get left and right confused. I can never remember which of the two is port and starboard (*), but left and right are as ingrained in the "immediate lookup table" in my brain as counting, addition and the days of the week are. I've never had to go through the motions of "which hand do I write with?" to work it left and right. Of course, some people can't do the mirror-image processing needed to work out that a person's right hand is on the left side as you are facing them.

(*) I always have to think of "port red wine" (to give the colour of a port light, starboard being green) and "port and left both have four letters" - so there's a brief period of processing rather than it being instinctive.

Every AC tube radio.... :-)

I don't doubt what radios had. But I'm talking about my phonograph.

Even in the 1930's?

Blue lights are summat else. IIRC something to do with shunting

Crikey, Mine was a 1930/40/50 set - that looks later than 1970

Me too :-)

One of the commonly used servers gives you no choice on that.

Correct. I think I bought it during a summer trip to Britain (for English language pracitce), which means 1976..79.

I also had a steam engine (Mamod?), which I think I got as a present.

Mind, I was a teenager when I got those "improvements". Good stuff for experiments :-D

I find that very hard to believe.

And common etiquette requires removing unwanted/uneeded or unnecessary cross posting.

Especially for ridiculous threads like this one.

I had one engineer who couldn't tell left from right, and couldn't tell a digital 1 from a 0. He was always getting logic wrong.

Down can be good, like when you're walking and don't want to step on the cat (that's following you too close).

None of the groups in this particular thread are unwanted/uneeded or unnecessary

No one is holding a gun to your head and is forcing you to read any thread that doesn't interest you.

Clearly those who are posting in this thread feel otherwise.