Most people know the colour wheel and how complementary colours are "opposites", but Rob takes the story a bit further, and there are simple demonstrations that you can try yourself
The colour of a shadow can not depend on the colour of the light casting the shadow as a shadow is simply an absence of light. If the light source is turned off, the area that was in shadow is still illuminated exactly the same way (ie: by the ambient light) and therefore must be the same colour. The observed complementary colour of the shadow must be an optical illusion generated by the human eye and brain.
Well, yes. If you take off rose-tinted glasses, the world looks green for a bit. If you stare at the design of the Union Jack made of green, black, and orange, you'll see it properly colored when you look away. My gripe is about saying that a light casts a shadow. A shadow is cast by whatever blocks the light. As far as I know, English doesn't have as short a way to describe the relation between the light and the shadow that it surrounds as it has to describe the relation between the blocking object and the shadow (we simply say the one "casts" the other); but having to use more words to express the first relationship doesn't make the abuse of "cast" any better than saying "the power outage has been restored" when you mean that power has been restored (the outage has been stopped).
Is it just the eyes overcompensating for the dominant colour? Like when you wear red tinted glasses for a while and then remove them everything looks green?
The actual 3 basic complementary color pairs are yellow-blue, green-magenta and red-cyan. The pair of orange (like a saturated skin tone) is cobalt blue (like a sky color when you look straight up). It’s true for both in case of lights and paints (additive and subtractive color mixing).
The Myers experiment thing reminds me of when I was in drama class and we were working with gels for lighting. Objects would sometimes look like they were tinged with the complimentary of whatever color the gel was.
@@andymerrett I didn't say he was an idiot. I said seven is an illogical number of colours to say are in the rainbow. The only sensible numbers are six (the primaries and secondaries) or infinity. Seven is just a weird number to choose.
+Patrick Risse Yes, several format conversions from the original format and then up on TH-cam rather decreases the detail, but the trick is to do it yourself and see the effect - Rob
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The colour of a shadow can not depend on the colour of the light casting the shadow as a shadow is simply an absence of light. If the light source is turned off, the area that was in shadow is still illuminated exactly the same way (ie: by the ambient light) and therefore must be the same colour. The observed complementary colour of the shadow must be an optical illusion generated by the human eye and brain.
I think it's an optical illusion too. But we can make vividly coloured shadows by using more than one coloured light source.
Well, yes. If you take off rose-tinted glasses, the world looks green for a bit. If you stare at the design of the Union Jack made of green, black, and orange, you'll see it properly colored when you look away.
My gripe is about saying that a light casts a shadow. A shadow is cast by whatever blocks the light. As far as I know, English doesn't have as short a way to describe the relation between the light and the shadow that it surrounds as it has to describe the relation between the blocking object and the shadow (we simply say the one "casts" the other); but having to use more words to express the first relationship doesn't make the abuse of "cast" any better than saying "the power outage has been restored" when you mean that power has been restored (the outage has been stopped).
notice, that there is white light source opposite to the colour one in this experiment
I wonder how well this would work with LEDs since they produce a “pure” colored light and don’t need to be filtered
Go to any party. It works perfectly
Except for the white ones. It's a blue LED with phosphor to convert said blue light to white with fluorescence.
0:30 i thought those were arabic numbers
Whats interesting it spells Roy
Is it just the eyes overcompensating for the dominant colour? Like when you wear red tinted glasses for a while and then remove them everything looks green?
Has anyone ever completed a set of televisions before?
The actual 3 basic complementary color pairs are yellow-blue, green-magenta and red-cyan. The pair of orange (like a saturated skin tone) is cobalt blue (like a sky color when you look straight up). It’s true for both in case of lights and paints (additive and subtractive color mixing).
The Myers experiment thing reminds me of when I was in drama class and we were working with gels for lighting. Objects would sometimes look like they were tinged with the complimentary of whatever color the gel was.
Finally! Somebody who understands that it is much more logical to say there are six colours in the rainbow than seven. Thank you, Rob!
@@andymerrett I didn't say he was an idiot. I said seven is an illogical number of colours to say are in the rainbow. The only sensible numbers are six (the primaries and secondaries) or infinity. Seven is just a weird number to choose.
mildly orange
+Patrick Risse Yes, several format conversions from the original format and then up on TH-cam rather decreases the detail, but the trick is to do it yourself and see the effect - Rob