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

Am 07.03.23 um 21:11 schrieb Jim Joyce:

I once lived in Berlin-Schöneberg, only 400 meters away from David Bowie and Iggy Pop, when I suddenly heard police and tyre noise from a 7x0? BMW driven by a Turkish Teeny. The Policemen could drive, even with their VW Bully, the Teeny not really. The street was not wide, so the BMW ended in the back of a Mazda 626, moving the 626 rear bumper into the driver seat. The car that was parking in front of it was a total loss, too. With the help of a crowbar, they could drive the BMW to the next crossing.

Satisfied BMW customer since then. I could not ignore that. And yes, I've destroyed a 535 in aquaplaning, mostly. But I'm still alive.

This video contains some pics of the hood. <

Cheers, Gerhard

My 'road' bike is a mountain bike with slicks. There are a couple of hills where I can get up to about 30 mph and I don't even try to pedal. 18 mph is about all I can achieve on level ground with a comfortable cadence.

I've thought about an e-bike but will probably just keep thinking about it.

Gaol always threw me as in 'The Ballad of Reading Gaol'. I suppose it's in line with Gerald and so forth. I'm never sure about disk and tend to alternate. 'Ax' is another one. This newsreader flags 'axe' but I tend to favor that spelling.

I'll go with herb. 'Erb' sounds affected to me. When I was a kid I had a book about Indians, excuse me Native Americans, where the medicine man was named Herb Gatherer. I thought Mr. Gatherer's first name was Herbert like Herbert Philbrick until the dime dropped.

I play fast and loose with 'an'. Acronyms really mix it up. 'An USB port' just doesn't cut it.

Square D's first shot at solid state was called NORPAK. Each plug-in module had 10 NOR gates constructed with discrete components. You wired them up on the backplane with tapered pin jumpers that you set with something like an automatic centerpunch.

Academics aren't the sharpest knives in the drawer. Who would deface beautiful white marble statuary with paint?

Given the modern Greek color palette the Parthenon in its heyday may have looked like Athena's Whorehouse.

Some of the local multi-trails have 10 mph speeds posted but they're a suggestion. The iron fist in the velvet glove is if there are too many valid complaints the trails will be closed to bicycles completely.

Some of the single track trails are closed to e-bikes. It's not like there are cops hiding behind the pine trees to enforce it. There aren't that many e-bikes yet so we'll see how it goes.

There is one hill close to me that has a portable radar setup with a screen to tell you your speed. The limit is 35 and it will flash if you're going faster. I've tried to get it to flash with the bicycle but it's too far out on the flat and I've never been able to get more than 28.

You're right. 30 on a bicycle feels a lot faster than three times that on my Suzuki V-Strom. However, I have more scars and broken bones from bicycles than motorcycles so that may play a part.

It was modern academics who used modern spectroscopy to show that the statues had originally been painted

Your link points this out. It's you who isn't the sharpest knife in the drawer.

Buck and boost converters don't use their transformer core material all that effectively.

Using switching circuits to set up a pulse width modulated waveform that will rectify to the desired voltage, and putting that through a tranformer to get the step-up or step-down that you need lets you push a lot more power through a given core volume,

It's not 1 in 12. I've only ever known ONE person who was red/green colour blind.

So they used adjectives to describe different blue/green shades? That could work.

What about brown?

Many people seem to know all sorts of colour names. I usually have to look them up. Could you tell the difference between fawn and beige and magnolia? In fact if you look up these colours, there is no one answer.

If you ever go to B&Q, do not purchase their more expensive colour matched paint. You give them a piece of fabric/whatever, the computer scans it, and it "mixes" the right paint to match it. Except it's a lie. It just picks one of about 300 colours from a list. Which you can do by holding the fabric up against the chart on the wall and save money.

Having at least one between each makes sense. If your eye detects R and G about equally, there should be a name for that.

I call bullshit. If the lowest frequency detector was yellow, how do we see red? And why does the RGB system on TVs work so well?

I wonder why women tend to be more colour fussy? Are they being fussy or accurate?

It's nowhere near "many".

Females sometimes have 4.

On my bicycle, I overtook a van coming down the North Downs once. I glanced in at the drivers dash as I dis so. His speedo registered 38mph or thereabouts.

Ah, Youth...

Herb sounds affected to me. OTOH, I pronounce the H in herbivore, herbicide, etc. "A foolish consistency is the hobgoblin of little minds."

Given the implicit "Y" sound at the beginning, it's a virtual consonant. "AEIOU and sometimes Y".

Maybe you only know 12 people.

(a) The frequencies represent the peaks of the curves. You will see from the diagram that both of the yellow sensitive cones have tails that extend well into the red. We see red by comparing the relative levels of the two. People with only one type of yellow cone can't do this, which is why they can't tell red from green.

(b) I suspect that any three well separated colours would work. Maybe RGB was chosen as phosphors and dyes for those colours are available, or maybe because "famous scientist" Maxwell said that we see red, blue and green.

My other post links to the Wiki article on colour blindness. It's about 8%

Showoffs.