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

Feb 11, 2023 Last reply: 2 years ago 1848 Replies

Nah, there'd be the smell of woodsmoke and the fire brigade would be called.

Ever heard of *friction*? Possibly a new concept for you?

You think a lot of things, most of them quite fanciful.

Stairs? There's no stairs! Those pesky passengers on top have to climb up to their seats. That's why there's always a big rush at the doors - first in, best dressed on the lower seats.

Not for me.

I got a completely different result with a day surgery.

I didnt bother with a mask because none of the reception staff did, even tho all of those in the waiting room did with the initial consult. No one said anything to me and didnt with the actual day surgery either.

Didnt happen to me.

I dont bother because no one seems to care.

Take it up with

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if you have any evidence.

On some lines, you don't want the really big engine, you want the really slow engine :-)

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Paul

Yeah, tell that moron who turned his car into a tin can because he cut off a fully loaded tractor-trailer (80,000 pounds) that "it stops in a safe distance". Even with NHSTA requiring e-stop in 250 feet ... well, that's 250 feet after the e-stop is hit. General recommendations for safety are to give trucks AT LEAST 500' stopping distance.

Good thing that train is confined to that 56.5" little "rail way" thing then innit? Really easy to not get clobbered by one -- just stay off the tracks!

As an aside, 30 cars is pretty short. Probably a local run for businesses directly served by the railroad. Your standard inter-city run is going to be more like 90-100 cars (possibly a bit longer), and weighing in somewhere around 350-400 times a tractor-trailer.

I dunno about you, but I'm certainly happy to "only" see two of those a day (plus probably 2 more at night, but never went to check them out), instead of the 1400-1600 trucks that'd otherwise be required.

Interesting, snopes has a similar dismissive article for the one-finger salute.

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The Willamette #7 is a 'Shay type', built after Shay's patents expired.

Fark. Hard to see how they got the rails like that.

If you do that, then those wheels will be very low friction and braking will be as bad as with steel wheels.

You need something that is soft to increase the contact surface and grip. You have to choose, one thing or the other. Can't have both.

>

Well you could have a train having steel wheels, but with rubber tyred wheels that could be dropped onto the track during heavy acceleration, heavy braking and for steep hills. But generally, steel wheels work well enough.

If you had tyres, you could get rid of the rails. Do you think it'll catch on?

Doesn't the Paris Metro have tyred plate-ways?

Yes - at least one line did in the 70s.

"Manners" in this context is just a way to bully people. Some "manners" may be devised just for this purpose.

There are things making a fuss about, and there are face masks. I am not convinced they have or had any efficacy whatsoever.

But I carried a few around to slap on for appearances sake

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The last minutes, as the bad guy tries to flee in the Metro, it has rubber wheels. Supposedly in the Washington Metro, but I have never been there so I don't know.

Google says it is the Radisson Metro Station in Montréal, Canada.

Looking at the photos, you can see the rails are special.

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I have not found photos of the car wheels. Ah, here:

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If they need extra traction they drop sand on the tracks.

Having one derailment per day, is a testament to the technical sophistication of rail.

And you don't just use any old sand. The picture on the page, shows it comes in its own spice rack. Classy.

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I think sand (and not the best sand), was more popular in steam days. Diesel-electric have smoother application of power. The relatively new passenger rail here, I've taken it once, and the acceleration and deceleration is fully automated. You hardly ever hear the clank of couplers on the new one. The old one, it was like riding a freight.

And I have ridden a freight, but only in a sense. The family went on vacation one summer, down the coast. Bought passenger tickets. Get to the departure point, a single engine, six box cars, and one passenger car show up. The passenger car has a conductor, who takes the tickets and punches them. The single passenger car is divided into two sections. Royal Mail (so called) in the front of the car, passengers in the back. In the middle of the car, is a pot belly stove (not running, because its summer). The trip would not be noteworthy, except the bloody thing only did 40MPH for the entire trip (took about six hours). Um, "scenic" is the most positive term that comes to mind.

Paul

In the US it's a testament to ignoring maintenance to squeeze out the last dollar.

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Some derailments have a silver lining. This one was even more special by having seven of the derailed cars in a tunnel.

We've had others that dumped grain cars. The bears really appreciate those.

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