The reason why the grass always seems greener on the other side may be to do with chlorophyl and photosynthesis or other intrinsic physical qualities, but it's more likely to be caused by the medium-wavelength M-cones in the eye that are triggered by light in the 500-570 nanometre range.
The reason why the grass always seems greener on the other side may be to do with chlorophyl and photosynthesis or other intrinsic physical qualities, but it's more likely to be caused by the medium-wavelength M-cones in the eye that are triggered by light in the 500-570 nanometre range.
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Andrew McKie
If you were ever tested for deuteranopia, or one of the other kinds of colour blindness which prevent distinguishing red and green, you were probably given a set of cards showing circles made up of smaller, coloured circles, and asked whether you could see the numbers written on them.
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We all must open our eyes to the benefits of the Union
The reason why the grass always seems greener on the other side may be to do with chlorophyl and photosynthesis or other intrinsic physical qualities, but it's more likely to be caused by the medium-wavelength M-cones in the eye that are triggered by light in the 500-570 nanometre range.
If you were ever tested for deuteranopia, or one of the other kinds of colour blindness which prevent distinguishing red and green, you were probably given a set of cards showing circles made up of smaller, coloured circles, and asked whether you could see the numbers written on them.
Commenting & Moderation
We moderate all comments on HeraldScotland on either a pre-moderated or post-moderated basis. If you're a relatively new user then your comments will be reviewed before publication and if we know you well then your comments will be subject to moderation only if other users or the moderators believe you've broken the rules, which are available here.
Moderation is undertaken full-time 9am-6pm on weekdays, and on a part-time basis outwith those hours. Please be patient if your posts are not approved instantly.
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