I've got my computer setup in a different room while Sheetrock was being repaired in the next but I usually have at least two monitors running at the same time with one running a diagnostic graph that shows what the CPU cores are doing along with the memory, page file and hard drive. If my computer seems slow, I can look at the screen and see what's going on in real time. I experiment with a lot of software and it really comes in handy. ^_^
Back before glass cockpits, when aircraft had mostly individual analog instruments, the great majority were designed to all have their indicator hands point in the same direction during normal operation. Anything 'acting up' really stood out... I've heard this is in fact very common in auto racing... like the example above.
There was a NASA rule that all stuff would indicate by green lights. If any warning came on it was red or yellow. When they started putting LEDs in equipment, there were only red lights. Things changed.
And what about us poor slobs who are R/G colorblind?? I can tell if they're lit, that's about all.
The new green led traffic lights that are very bluishgreen are no problem, but the tiny green led's like on modems and indicators showing that something is powered on are a total loss if the color is supposed to mean something. And, 10% of all males are color-blind to some extent, and we are pretty much ignored by most electronic designers, unless they happen to be color-blind also.
When I was first married, my wife spent some time each week telling me resistor colors for my electronic projects, this was before I had a decent multimeter at home. At work I had a Simpson 260, I think it was.
I had a similar position teaching trobleshooting and maintenance for a sonar system. Most of it was digital, so the schematics showed the gates and flip-flops without showing the power supply.
So I opened the five volt line to one board. After they found that all the signals into several gates were good, and all the outputs were bad, they were baffled.
"What do all those dead points have in common?"
"Nothing"
"So five gates all went bad at the same time by coincidence?"
(Studies the book a while) "Hey, they're all on the same card!"
Much of the male population is red-green color blind. So, that's not a totally useful approach.
Red versus blue would be much better color choice.
Yes, I do have red green color vision problems.
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There was a NASA rule that all stuff would indicate by green lights. If any warning came on it was red or yellow. When they started putting LEDs in equipment, there were only red lights. Things changed.
Worse, is another episode of endless untrimmed text, and forwarding indents. Having to scroll through dozens of lines of indent for a couple words of new text.
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And so begins another annoying episode of top-posting foolishness.
One bank, I used to have account. Had two lights that were over the drive through windows. They had a color light, next to a colored light. I'd just have to wing and guess if the drive through was open, or not. If the one light was on, or if the other same colored light was on.
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And what about us poor slobs who are R/G colorblind?? I can tell if they're lit, that's about all.
The new green led traffic lights that are very bluishgreen are no problem, but the tiny green led's like on modems and indicators showing that something is powered on are a total loss if the color is supposed to mean something. And, 10% of all males are color-blind to some extent, and we are pretty much ignored by most electronic designers, unless they happen to be color-blind also.
When I was first married, my wife spent some time each week telling me resistor colors for my electronic projects, this was before I had a decent multimeter at home. At work I had a Simpson 260, I think it was.
As you probably know, badly-acting power supplies can do weird things to electronics. I used to turn power supplies down until the voltage was just enough get the units running. Every time the unit would power up, the symptoms would change.
The techs would diagnose one problem, turn the system off, swap in a part and power it back on. Typically something else would appear to be bad. They'd changed another board and the symptoms would change again.
Eventually they realized that something universal to every section of the equipment must be bad.
I worked as an electrician in a large plant before retiring. In the later years that Europen color coding sure messed things up. Their red and green seemed backwards. On large breaker panels if it was colored red, it was on and dangerous to open. Green ment it was off and safe to open the panel. That is backwards to the American usage where Red was off and Green was on.
Having two standards that are backwards in the same plant is worse than no coding at all. It took a short period of time to get it in our heads not to pay attention to the color coding.
Reminds me of a service call I got one day. The operator was saying the macine would not start. I said " look you big dummy, try pressing the green button instead of the red button."
Speaking of strange colored indicators (and morphing this thread even further) do you have the "flashing yellow left turn arrows" where you live?
Some genius decided that replacing the solid green left turn light with a yellow flashing turn arrow would be better.
Here's how they are using them:
The old configuration:
Dedicated left turn lane with a green arrow. Once the time period for the green left turn arrow has expired, the light turns full green. Drivers wanting to make a left turn have to wait until the oncoming traffic is clear before making the left.
The new configuration:
Dedicated left turn lane with a green arrow. Once the time period for the green left turn arrow has expired, a yellow flashing left turn arrow appears. Drivers wanting to make a left turn have to wait until the oncoming traffic is clear before making the left.
You'll note that in both cases the driver still has to wait until the oncoming traffic is clear before making the left, just like when making any left turn, whether or not there is a left turn arrow at the intersection. Why we suddenly need a flashing yellow arrow to "warn" us about turning left into oncoming traffic is beyond me.
They added one at the intersection where I turn into the office park where I work. There has always been an inordinate number of accidents at that intersection as people try to turn left into the office parks on both sides of the main thoroughfare. When they added the flashing yellow light, they sent around a notice about how these flashing yellow left turn signals have been found to reduce accidents in other parts of the country.
Well, trust me, it hasn't worked here. There are still numerous accidents at the insection and I would be willing to bet that the signal configuration is more confusing than the old standard. When I see a green light and I want to make a left turn, I wait until it's clear. I don't need a yellow flashing turn signal to tell me to wait until it's clear, especially if it's used only at a few intersections.
further) do you have the "flashing yellow left turn arrows" where you
with a yellow flashing turn arrow would be better.
Here's how they are using them:
The old configuration:
Dedicated left turn lane with a green arrow. Once the time period for the green left turn arrow has expired, the light turns full green. Drivers wanting to make a left turn have to wait until the oncoming traffic is clear before making the left.
The new configuration:
Dedicated left turn lane with a green arrow. Once the time period for the green left turn arrow has expired, a yellow flashing left turn arrow appears. Drivers wanting to make a left turn have to wait until the oncoming traffic is clear before making the left.
You'll note that in both cases the driver still has to wait until the oncoming traffic is clear before making the left, just like when making any left turn, whether or not there is a left turn arrow at the intersection. Why we suddenly need a flashing yellow arrow to "warn"
I don't recall seeing any flashing yellow arrows. I can see how that would make more sense than the green lights. I have see some intersections that only have green lights for the left turn and no arrows. That is confusing to me as I would think that green means go. If you are in a turn lane, even though the light is green, you still have to wait on traffic. That is the part that makes no sense at all to me.
I could almost see a yellow light or flashing yellow for the left turns where you have to wait on traffic.
Well, we do need lots of accidents. Helps the economy. More cars sold to replace the wrecks.
Also a part of population control. Gets rid of 30 to 40 thousand people a year. Good for the undertaker business.
Sometimes I think that roads are designed to cause problems for the above reasons.
The difference is that a flashing yellow is the equivalent of a yield sign. In that sense, it's more logical. ...though you always have to yield to oncoming traffic when making a left turn. Either should be intuitive.
That's normal at intersections across the country. Green with no arrow means you have the right of way to go straight ahead (or turn right). A green arrow means you have the right of way to turn in the direction of the arrow.
Any time you don't have the right of way granted by a green light, you should exercise caution and make sure the path is clear of those that do have the right of way.
When I'm sitting in a left turn only lane, I don't need a yellow flashing light to tell me to be careful and only go when it's safe. I know to do that because I know to never turn across on coming traffic until it's safe. Heck, even with a green arrow I'm going to wait until I'm sure the oncoming traffic is going to stop before I enter the intersection.
My point exactly. Since you always have to yield before making a left, the yellow flashing light is not needed. In addition, since it is extremely rare compared to just about every left turn lane we've ever been in, I think it adds more confusion to the situation than safety.
In any case, get ready for them. According to this video from the Michigan DOT, they will be required across the US soon. I'm a day's drive from Michigan but at least one has shown up around here already.
In some Canadian provinces a flashing green globe or arrow means (used to mean?) that cross traffic or on-coming traffic had to stop. They were called "advance green" meaning if you saw it flashing, you could advance.
If I recall correctly from my service days in Germany, a flashing green meant that it was about to turn red - the equivalent of the modern day yellow light.
When I was growing up in NYC (Queens) some of the smaller intersections had 2-light traffic signals - green and red. When they were both on, it was the equivalent of the modern day yellow light.
And here I was expecting a post about a cool vintage find and had my fingers all limbered up to be helpful :)
(just went through the process of doing a mini-resto on a 40's vintage phone for a friend's kitchen. Yes, I was successful! Yes, I had a LOT of help from the interwebs; couldn't have done this myself 20 years ago.)
Ya missed your chance to make a lawyer rich. That sounds like a lawsuit under the Americans With Disabilities Act. Your attorney could've gotten a new Lamborghini and you could've gotten a free year old calendar.
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