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

All the 6.5 amp and 8 amp etc stuff is euro specific - 220/240 volt

Fepends which way you are looking - and which way the clock is facing. Looking north the sun rotates anti-clockwize

I seem to recall that, but in "the next generation", not the original series. However, I have not watched the entire original series.

Another example of coding that doesn't involve encryption is what is used for sending images by email, e.g.:

Content-Transfer-Encoding: base64

:-)

Yes, mine is from around 1930. My father was told at some time to install breakers and an RCD. That time it meant just two: one for the washing machine, which got a new cable when they bought the machine, and another for the rest of the house.

Recently (a decade ago?) I installed four. I redid the upstairs installation. so I have one for lights, and another for "power".

Downstairs is the old installation, which besides the breakers has one fuse on each light switch or socket.

I think all houses have circuit breakers, but that doesn't mean they have a fully compliant installation.

I don't think they've ever ordered that here. Althought some people remodel and upgrade on their own. A friend bought a 100-year old farmhouse about 10 years ago and it still had knob and tube wiring. I think it was connected and in use. He replaced it but he does lots of stuff like that, for himself and at work. I'm not sure he had to. I will ask when I talk to him.

It was "The Next Generation". The title of the episode was "Darmok". One of my favorites.

People who throw out usable stuff should be shot. Have they not heard of Gumtree, Ebay, Freecycle? The government could make it a law against the environment or something.

You need to know which side of the tap it is for some reason?

What is that reason? There's nothing special about clockwise which makes airflow better.

Do they regularly inspect your house? Nobody is allowed access to a UK house without a warrant.

I have seen no such explanation. 0V is 0V.

Taps are the wrong way round. Consider a gas and an electric cooker and their control knobs.

No reason that couldn't be done the other way.

If you use a nylock nut, you don't get loose screws anyway.

Funny how most cars don't seem to need that.

What's wrong with different sized connectors?

Thinking you're tightening a gas pipe and you're actually undoing it is dangerous.

Think about it. How do you build a turnbuckle with both sides righthanded thread?

Yes, my dad was not best pleased. He was planning to pass the Meccano on to my nephews when they were old enough to play with it. I had hours of fun making models, and learning about spur and helical gears, and gear ratios (reduce rotational speed but increase torque proportionally).

A quadcopter is a perfect example of this: four identical motors and four identical propellers, except that two props have the same pitch but opposite direction. A "left-handed" prop turning anti-clockwise and a "right-handed" prop turning clockwise will generate identical lift if the diameter and angle of pitch is the same. You don't need motors of different power or props of different diameter/pitch to compensate for one way being less efficient than the other.

Of course you must turn a prop in the direction that generates positive lift rather than "negative lift". A "left-handed" prop and a "right-handed" prop both turning clockwise would balance each other out and don nothing (except generate a bit of rotational torque which would turn the helicopter over, because the two props are displaced sideways from each other. Actually if there were *four* props, I think even rotational torque would be balanced: you'd be expending a lot of energy to have absolutely no effect ;-)

On my car, track rods (steering links) are on captive ball joints at the steering rack end and so can be rotated in or out of the track-rod end using the single, right-hand thread.

A lot of insurance companies will exclude electric-caused issues from the policy if the home has knob and tube here in the states.