U=voltage (V) ,I =flow(A); r = Resistance(Ohm); p = Power (W)
u = r * i
p = u * i
and... p you can combine with t, than you have Ws or kWh in larger scales.
Electronic scales to trains atm. i think. So, a linear engine train like the Transrapid or conventional ones like the ICE or TGV can control their engine by electronic. Thats why they started to be able to cross european country borders in the 90'ies. German trains go by 15kV 15 2/3 Hz, french ones by 50 afaik. the 15 2/3 is 50/3 to make sense to the europeans using 50Hz AC allmost everywhere. I think till the late 80ies you had to have two engines to cross the border to french by train, or they swapped it at the border and pushed over by diesel engines.
yes, a subway should be comparable to an ICE, though it won't go 300 km/H ;)
puting an engine/generator couple inbetween can't be that efficiant?
(As a side note: nycsubway.org happens to be a site run by Dave Pirmann, who for a decade or so maintained the now-defunct "DaveCode" variant of our Citadel software. Small world...)
hehe, that subway article spawned an interesting discussion about CPS'es
which are motor/generator/flywheel/diesel combinations. but they can fail:
What happened to the first one? I dove into a patch of serious vines that wrapped
around the line head and stopped it cold at full throttle. The torque was enough to snap
the shaft and break the clutch. I called and said all I was doing was trimming the grass along
Since it was still in the unconditional 90 day money back guarantee period they sent UPS
out to pick it up and a new one is now on its way, and with no shipping charges either way.
I don't know if this belongs here or in the "Score" room. :^)
A rotary converter (motor-generator) is how they did it for over 100
life was cheap.
The fridge is fucking huge. It monopolizs my kitchen. But you can put tons of stuff in it.
Or you could just say "fuck it" and weld the whole thing shut and bury it.
A few months ago, I unscrewed the cap, went inside the house and flushed every toilet, turned on every sink and spigot in the house, and nothing went through that pipe.
It doesn't smell bad, so there's no noxious fumes coming out of it...
At the moment there's a sliver of cut around it, yes there's a hole, but it's not big, and I was too tired last night to do anthing about it.
I woke up this morning to happily find out there wasn't spooge all over my driveway.
So today I will cut off the rest except it's raining, and seal it over and be done with it.
I'm not going to weld it though, just epoxy or something I can pop off if I have to.
There was a lot of water in there. And no wonder -- the stupid monkeys reinstalled the gutter with the slope pointing *away* from the downspout. And to think -- this contractor wanted to sell me new gutters.
The roof is fantastic, but there's no way I'd buy gutters from this guy now.
Actually, he spent a considerable amount of time trash-talking the PVC gutter we have in that location. Hate to say it but I actually like it better than the aluminum gutters -- easy to install and maintain, and it doesn't dent when you rest a ladder on it. I'll probably be putting more of them in.