Why do circuit breakers go up for on and down for off?
Feb 11, 2023 Last reply: 2 years ago 1839 Replies
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rbowman
Damn socialist... Morris and all that crew were all radicals. I did read his 'News From Nowhere' last year and found it enjoyable. He was an anarchist at heart so it was an answer to the state socialism in Bellamy's 'Looking Backward'.
I really miss old school socialists.
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rbowman
I tried the green variety once a long time ago. A little goes a long way.
M
Max Demian
It was all the rage in the nineteenth century.
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rbowman
Ah, the Mauve Decade. I am familiar with the term but never was too clear about the color involved.
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Paul
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The colour was associated with royalty, because it used to be expensive to get. Now, it's easy to make purple dyes for clothing.
Every colour we use, has a fascinating story. Like Red Dye Number 2 (a suspected carcinogen). There is a CRC (Chemical Rubber Company) text, filled with info like this.
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If you want to invent Fruit Loops breakfast cereal, it means your CRC book is well dog-eared (looking for colours and smells/flavours for the cereal to be dipped in).
They even got purple ones.
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Paul
C
Commander Kinsey
You're assuming a very constant power supply to the motor.
C
Commander Kinsey
They all tend to have markings, presumably for calibration.
C
Commander Kinsey
Ahhhh, the French cassettes. Section three, page two, SSLLOOWW..... BONNNGGGGG!
C
Commander Kinsey
78 is to make Johnny Cash have a normal voice.
C
Commander Kinsey
Then you can never get it perfect.
C
Commander Kinsey
Myself and my neighbour's son have fallen off a step ladder going into the attic. I landed on the floor and winded myself. He landed with his back astride the fallen ladder and broke his back.
Electricity doesn't usually kill you, but falls do. My tradesman friend got a shock off live and neutral when up a ladder and fell off it. Not a lot of good those ELCBs.
Why wasn't the ladder retracted as it was designed to?
C
Commander Kinsey
TENS.
C
Commander Kinsey
I fitted 5 speakers in every room of my house, in the ceiling. One subwoofer in the centre and 4 midrange in the corners. Oops, no boxes, half the sound into the attic and across to my neighbour's attic.
Me and a friend as kids used to dismantle JCBs from building sites. Er.... ones that were in use. Tonnes of switches off the dashboards.
ROFL, need a key to steal a Mini, just look up the number and buy one?
I once got into and started a Range Rover, then noticed a pair of gloves on the dashboard, looked in the mirror, and saw my own car behind me. I got out and into my car rather quickly. I guess they didn't have many types of key.
Same where I was a kid, but a permanent site.
More a case of they don't want the valuable scrap taken.
That's the biggest bullshit law I've ever heard. They've decided they don't want it once it enters the skip. I doubt anyone would ever get charged for something so absurd.
My uncle took a ladder from a skip in Yorkshire. I distracted the employee by asking him to show me where I could dump a car battery while my uncle put the ladder in the back of his 4x4.
Probably not. Although I did witness a 4x4 landing on a Renault Scenic. I went to the scrapyard to get a replacement boot for my Scenic, but there was a 4x4 on top of it, with it's wheel in the way of me removing the boot. I waved to the only guy working there who came over with a crane and lifted the 4x4 off it. But it swung and came off the chain, landing on the front half of the Scenic. He said "Oops! You didn't need any parts from the front did you?"
C
Commander Kinsey
Should be used on all tracks, then perhaps trains could stop in the distance my car is required to by law.
R
Rod Speed
Not even possible with the higher speed lines.
Not a chance given how much heavier any train is, let alone freight trains.
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rbowman
Do the math. A fully laden coal car weighs about 140 tons. I've never been bored enough to count cars when I stopped at a crossing but there are a lot of them. Let's say 30 for the sake of argument, 4200 tons plus the weight of the engines. Let's say 4 at 200 tons each. So, roughly 5000 tons traveling at 50 mph. That's quite a bit of kinetic energy to dump in 300'. I can hear snapping axles and see flying wheels.
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invalid unparseable
The wheels and the rails are steel. A train can never have enough friction to stop at a short distance. The brakes can lock all the wheels but the train will still move forward due to inertia.
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Rod Speed
You don't have 4 for a 30 coal car train.
And you can't do 4 loco engines on a cogwheel train.
It would just rip the teeth off the cogwheet drive.
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rbowman
The reference was to the Mt. Washington Cog Railway. The wheels are for guidance but the motive power is a rack and pinion.
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At least on Mt Washington it's only the engine and a small passenger car operating at less than 10 mph. They're not feasible for general use.
M
Max Demian
What's that got to do with the price of fish? It compares the signal recorded on the tracks to the quartz oscillator and adjusts the power to the motor accordingly. If you slow it with your finger the white "Quartz Lock" light goes out. The motor also applies an electromagnetic brake to slow the platter quickly when it stops.
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