B
breezer
its a trick question (sorry ebee) the answer is Red Blue and Green
The question says "What are the three primary colours?" it doesn't say what are the 3 phase colours
DIYnot eletricians quiz
- Thread starter Wontdothatagain
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its a trick question (sorry ebee) the answer is Red Blue and Green
The question says "What are the three primary colours?" it doesn't say what are the 3 phase colours
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Yes I know. It was a joke.
How can green be a primary colour? It is a mixture of blue and yellow.
How can green be a primary colour? It is a mixture of blue and yellow.
B
breezer
i know that but its considered a primary colour in lighting - perhaps you should tell me why, you are the lighting man
Yes I know you need to mix RGB in lighting to get white light, but that was not the question.
ebee asked for the three primary colours, which are red, yellow, blue. The old 3 phase colours, (hence the joke) If you wish to pedantic, they are magenta, cyan, and yellow
ebee asked for the three primary colours, which are red, yellow, blue. The old 3 phase colours, (hence the joke) If you wish to pedantic, they are magenta, cyan, and yellow
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B
breezer
no, i wasnt being pedantic, i really have no idea why the primary lighting colours are RGB, i thought perhaps you could tell me, since as you said green is made from yellow and blue
Will that be northbound, southbound, or both sides?
I've done some reading, and it seems we are both right.
There are infact two sets of primary colours. One for lighting (RGB) and one for paint and inks etc. (CMY).
I'm not sure why it works differently for each medium though.
There are infact two sets of primary colours. One for lighting (RGB) and one for paint and inks etc. (CMY).
I'm not sure why it works differently for each medium though.
RF,
I liked that,
Should have guessed someone should say that.
Real reason for question is that there are actually 6 not three, being two sets of three and most people get it wrong. Especially artists.
I liked that,
Should have guessed someone should say that.
Real reason for question is that there are actually 6 not three, being two sets of three and most people get it wrong. Especially artists.
Brill RF you got it spot on, I will explain
There are two sets of three primary colours.
1/
Emitted light.
Light from the stars like our Sun.
From TV and torches lamps etc.
They are Red,Green & Blue, mix them and you can get all the colours.
(omit to get black).
They are addative.
2/ Reflected light.
Inks/Dyes/Paints etc.
They are Cyan, Magenta & Yellow.
They are subtrative.
If you add any two from one set you get one of the other set too.
There are issues with intensity/shading etc according to the mix but that`s another subject for another day.
When you are young it is very unusual to get Cyan & Magenta paints and Crayons so a "fudge" is done and and two from one set and one from the other set is used as a very near approximation.
But it is not three true primary colours
1/
Emitted light.
Light from the stars like our Sun.
From TV and torches lamps etc.
They are Red,Green & Blue, mix them and you can get all the colours.
(omit to get black).
They are addative.
2/ Reflected light.
Inks/Dyes/Paints etc.
They are Cyan, Magenta & Yellow.
They are subtrative.
If you add any two from one set you get one of the other set too.
There are issues with intensity/shading etc according to the mix but that`s another subject for another day.
When you are young it is very unusual to get Cyan & Magenta paints and Crayons so a "fudge" is done and and two from one set and one from the other set is used as a very near approximation.
But it is not three true primary colours
Right then ,
another tie breaker then.
"If a brick weighs 7 pounds and half a brick then what does a brick and a half weigh?"
another tie breaker then.
"If a brick weighs 7 pounds and half a brick then what does a brick and a half weigh?"
21lb.
If an aeroplane is on a runway that's actually a giant conveyor belt that moves backwards at the same speed as.....
Oh maybe not.
If an aeroplane is on a runway that's actually a giant conveyor belt that moves backwards at the same speed as.....
Oh maybe not.
Poo.
Wouldn't want to carry a hod-full up a ladder, that's fersure..seems a bit heavy to me
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